Osceola County Transition Resources Osceola Transition Team.
Data repository items for Runkel, A.C., Miller, J.F ... · 5/8/9 3/2. 2/1. 2/1 G l a u c o n i t e...
Transcript of Data repository items for Runkel, A.C., Miller, J.F ... · 5/8/9 3/2. 2/1. 2/1 G l a u c o n i t e...
C r
nearshore marine
nearshore nonmarine
100%
0 trace-10%10-40%>40%
FACIES ASSOCIATIONS FACIES (See Runkel and others, 1998, for more detailed descriptions)
offshore siliciclastic
SHALE GLAUCONITE
"offshore" subtidal carbonate
peritidal to subtidal carbonate
intraclastssilica-cemented sandstone intraclastsgraptolite
partial core loss
linguliform brachiopods
= iron-rich*Fe biostratigraphic control points
microbialite
Natural G amma-ray Log
Increas ing counts
Ap AphelaspisDu DunderbergiaE l Elvinia
C o Conaspsis
P t Ptychaspsis
P r ProsaukiaP t-P r Ptychaspis-ProsaukiaIp Illaenurus priscus
C r Crepicephalus
E o* Eoorthis* (Brachiopod)P pa Parabolinoides palatusMn Maustonia nasutaT a Taenicephalus altusT ae TaenicephalusS -P S. oweni-Psalaspis
P g Ptychaspsis granulosaP s Ptychaspsis striata
Oo Osceolia osceolaUD Upper DikelocephalusC a CalvinellaS al "Saukiella"S asz SaukiaE a? Eurekia apopsis?Mt Missisquoia typicalisS w Symphysurina woosteri
Im Irvingella major
C e Cedaria
TRILOBITE (and brachiopod*) ZONE/SUBZONECONODONT ZONE/SUBZONE
R m Rossodus manitouensis
Ia Iapetognathus C l Cordylodus lindstromiC h Clavohamulus hintzei
C i Cordylodus intermediusHs Hirsutodontus simplex
C e Clavohamulus elongatusF i Fryxellodontus inornatusHh Hirsutodontus hirsutusC m Cambrooistodus minutusE n Eoconodontus notchpeakensisE EoconodontusP m Proconodontus muelleri
P t Proconodontus tenuiserratusP p Proconodontus posterocostatus
C p Cordylodus proavus
C a Cordylodus angulatus
F i
LE G E ND T O S T R AT IG R AP HIC C OLUMNS
See Figure 5 for relative ages ofall biozones
221146 (well identifier)
Grain Sizesh sl vf f cm
sh=shales l=s iltvf=very-finef=fine
c=coarse=pebbles
=cobbles-boulders
m=medium
1- S hale, s ils tone, very fine grained sandstone with small scale HC S2- V ery fine grained sandstone with small to medium scale HC S ; s ilts tone/shale caps3- F ine to very fine grained sandstone with amalgamated HC S and S C S
4- fine to coarse-grained sandstone , trough to planar cross-strata; common skolithos5- fine to coarse-grained sandstone, planar-tabular cross-strata; shale drapes ;
6- fine to coarse-grained, cross-stratified sandstone, includes adhes ion structures , "pinstripe" laminae;
7- S hale with subordinate dolomudstone to dolograinstone, HC S , graded beds common; intraclastic.
8- Dolowackestones to grainstones with subordinate shale; HC S , graded beds ; intraclastic.
9- intraclastic, oolitic, dolostone with dess ication cracks ; variably sandy and with sandstone interbeds
S i
Data repository items for Runkel, A.C., Miller, J.F., McKay, R.M., Palmer, A.R., and Taylor, J.F., High Resolution Sequence Stratigraphy of Lower Paleozoic Sheet Sandstones in Central North America: The Role of “Special Conditions” of Cratonic Interiors in Development of Stratal Architecture This supplement contains primary data that support the stratigraphic cross-sections in Figures 6 and 7. Included are stratigraphic columns, fossil collection information, borehole natural gamma-ray logs, and associated locality information.
Number above each stratigraphic column refers to control point numbers on location maps (Figs. 1, DR1) and on cross sections (Figs. 6, 7)
(Nel
son
, 194
9;n
ort
h
of F
ish
Hat
cher
y)
Eo (Berg, 1951 unit 3)Eo (Berg, 1951 unit 4)
El (Nelson, 1949)
El (Nelson, 1949 )
Cr (Nelson, 1949)
(Berg, 1951 unit 5)Mn
(Berg, 1951 unit 7)
TaTaTa
TaTa
Ta
(Berg, 1951 unit 6)Mn
Mn
covered
Tunn
el C
ity
Gp
Won
ewoc
Ss
(Ber
g, 1
951;
1954
; Tay
lors
Fal
ls)
(Nel
son
, 194
9;Pi
ne
Poin
t Tra
il)
80
100
0
20
40
60
30feet meters
4/5
2/3
2/3
7/2
3/4
3/4
minor 2
Mill St. Conglomerate
Glau
coni
te
(Taylors Falls, Minnesota area)1
sh sl vf f cm
El (Berg, 1951 unit 5)
El (Berg, 1951 unit 6)
Mn (Berg, 1951 unit 14)Mn (Berg, 1951 unit 16)
Ta (Berg, 1951 unit 18)
Ta (Berg, 1951 unit 22)
covered
Tunn
el C
ity
Gp
Won
ewoc
Ss
(Ber
g, 1
951;
1954
; Fra
nco
nia
)
80
100
0
20
40
60
30feet meters
3
4
4/5
3/2
3/4
2
Glau
coni
te
sh sl vf f cm
(Franconia, Minnesota area)2
Oo (Nelson, 1956)
Oo(Nelson, 1956)
Oo (Nelson 1956)Oo (Nelson, 1956))
Pr (Nelson, 1949)
Pm(minus 12.5m)
Rm(2.8 & 3.5m)Ca (0.8 &1.8m)
Pm(0.5m)
Jord
an S
sSt
Law
renc
e Fm
Tunn
el C
ity
Gp
Oneo
ta D
olom
ite
(Hug
hes a
nd H
esse
lbo,
199
7)(T
his
stu
dy)
80
100
0
20
40
60
30feet meters
2/3
2/3
3
4
4
Si5/8/9
3/2
2/1
2/1
Glau
coni
te
sh sl vf f cm
(Osceola, Wisconsin)3
516404
Quaternary deposits
Jordan Sandstone
covered
Jord
an S
sSt
Law
renc
e Fm
Oneo
ta D
olom
ite
Gam
ma
only
(R
un
kel,
1994
b; s
ecti
on 1
)80
100
0
20
40
60
30feet meters
2/3
3
4/5
8/2
2
2
2/1
Natural Gamma-ray Log
increasing counts
gla
uco
nit
e
Si
sh sl vf f cm
(Osceola SW, Minnesota)
4
Oo (Nelson 1956)
Oo (Nelson 1956)
covered
Jord
an S
and
ston
eOn
eota
Dol
omite
St La
w. Fm
Tunn
el C
ity G
p
(Nel
son
, 195
6)G
amm
a on
ly
80
100
0
20
40
60
30feet meters
2/7
2/3
2/3
2/3
2/1
4
4/3
3/4
3/4
8/2?
2
2
Natural Gamma-ray Log
increasing counts475354
Glau
coni
te
(Soo Drawbridge, Minnesota)5
sh sl vf f cm
S -P (B erg, 1951 unit 2)
S -P (B erg, 1951 unit 2)
S -P (B erg, 1951 unit 1)
P r (B erg, 1951 unit 7)P r (B erg, 1951 unit 7)
122050
covered
covered
Jord
an S
ands
tone
One
ota
Dol
omite
St L
awre
nce
FmT
unne
l City
Gp
(Be
rg,
19
51
;19
54
; C
op
as)
(MG
S u
np
ub
lish
ed
se
ctio
n)
Ga
mm
a o
nly
80
100
0
20
40
60
30feet meters
2/7
2/3
3
3
3/2
3/2
4
4
4/3
4/5
8/2?5?
3/4
3/4
3/2/4
2
2
Natural G amma-ray Log
increas ing counts
covered
coveredcovered
Gla
ucon
ite
(Copas, Minnesota)6
sh s l vf f cm
S -P (B erg, 1951 unit 3)
S -P (B erg, 1951 unit 2)
T a (B erg, 1951 unit 1)
P r (B erg, 1951 unit 11)
P r (B erg, 1951 unit 9)
P r (B erg, 1951 unit 7)
617245(cuttings set MG S 3903)
Quaternary deposits
J ordan S andstone
covered
covered
Jord
an S
SSt
Law
. Fm
Tun
nel C
ity G
pW
onew
oc S
s
UD(Nelson, 1949)
(Be
rg,
19
51
;19
54
; M
ari
ne
)
(Ne
lso
n,
19
49
; M
ari
ne
an
d M
GS
un
pu
blis
he
d s
ect
ion
) G
am
ma
an
d c
utt
ing
s o
nly
G
am
ma
on
ly
Ga
mm
a/c
utt
ing
s o
nly
80
100
0
20
40
60
30feet meters
2/3
3
4
3
4
4
4
2/7
2/7
3/4
3/2
3/4
3/? 4
3/4
3/? 4
2/3
2/3
2/3
2/3/4
2
2
2/1
Natural G amma-ray Log
increas ing counts
Gla
uc
on
ite
(Marine, Minnesota)7
sh s l vf f cm
Pt (Berg, 1951 unit 2) S-P (Berg, 1951 unit 1)S-P (Berg, 1951 unit 1)
S-P (Berg, 1951 unit 1)
Pr (Berg, 1951 unit 4)
Oo (Nelson, 1956)
698228
Quaternary deposits
Jordan Sandstone
cove
red
Jord
an S
SSt
Law
. Fm
Tunn
el C
ity
Gp
Won
ewoc
Ss
(Ber
g, 1
951;
1954
; Arc
ola
)
(Nel
son
, 194
9; 1
956;
Arc
ola
) G
amm
a on
ly
Gam
ma
only
80
100
0
20
40
60
30feet meters
3/4
3
3
2
33(4?)
3(4?)
4
2/7
3/4
3/2
3/2
2/3
7/2
3/4
3/4
4/3
2/3
2
2
2/1
Natural Gamma-ray Log
increasing counts
Glau
coni
te
(Arcola, Minnesota ) 8
sh sl vf f cm
cove
red
cove
red
One
ota
Dol
omite
Jord
an S
and
ston
eSt
Law
. Fm
Tun
nel
Cit
y G
p
(Ru
nke
l, 19
94b,
Sec
tio
n 2
)
80
100
0
20
40
60
30feet meters
8/5/2?
3/4
3/44
4
4
3
2/1
7/2
3/4
2
2
2
Natural Gamma-ray Log
increasing counts
448708G
amm
a on
ly
Gam
ma
only
Glau
coni
te
(Lookout Point, Minnesota)9
sh sl vf f cm
Ca
Sal
UD
Ip?
Ap (5.4 & 6.3m)
Ap (1.5 & 2.5m)
Cr
Cr
Cr(0.0 to 0.15m)Ap(0.15 to 0.3m)
471460
208791(Nelson, 1949; and i.d.'srevised by Palmer thisstudy, 10.1 m)
(Nelson, 1949, Boom Hollow, p. 58)
(Berg and others1956, Stillwater)
(Nelson, 1949)
(Nelson, 1949)
One
ota
Dol
omite
Jord
an S
and
ston
eSt
Law
renc
e Fm
Tunn
el C
ity
Gp
Won
ewoc
Ss
Eau
Cla
ire F
mM
t Sim
on S
s
Litt
le F
alls
Dam
(N
elso
n, 1
949;
th
is s
tud
y)(g
amm
a and
cutti
ngs)
(Nel
son
, 194
9; 1
956;
Bo
om
Ho
llow
)
(Ru
nke
l, 19
94b,
Sec
tio
n 3
) (g
amm
a an
d c
utt
ing
s)
80
100
0
20
40
60
30feet meters
4/5
7/8?
3/4
4
43
4
1/2
2/72/33/4
2/3
3/4
3/4
4/5/2
4
4
2
3
3
2
Natural Gamma-ray Log
increasing counts
covered
covered
2
33/2
2/3
7/2
3/4
3/4
4/5
3/4
4/3
2/3
2/3
Glau
coni
te
(Stillwater, Minnesota area)10
sh sl vf f cm
Pr
Pr
Pt
PtPtPgS-PS-PS-PCo
El
(Berg, 1951 unit 23)
(Berg, 1951 unit 20)
(Berg, 1951 unit 16)
(Berg, 1951 unit 15)
(Berg, 1951 unit 14)
(Berg, 1951 unit 13)(Berg, 1951 unit 12)
covered
Tunn
el C
ity
Gp
Won
ewoc
Ss
(Ber
g, 1
951;
1954
; Hu
dso
n)
3
2
33/2
2/3
7/2
3/4
3/4
4/5
3/4
4/32/3
2/3
covered
80
100
0
20
40
60
30feet meters
208791
Natural Gamma-ray Log
increasing counts
Glau
coni
te
(Hudson, Wisconsin)11
sh sl vf f cm
(Inaccessible)
Ca
UD
Ca
Oo
Ip/Oo
Pr
Pr
(minus 2.5m)
E (10.2m)E (8.7m)
En (3.0m)En (4.5m)
Pm (1.5m)Pm (0.6m)
453239
(Berg, 1951 unit 5)
(Berg, 1951 unit 1)
(Nelson,1956)
(Nelson, 1956)
( Nelson, 1956)
(Nelson, 1956)
One
ota
Dol
omite
Jord
an S
and
ston
eSt
Law
renc
e Fm
Tunn
el C
ity
Gp
(Ber
g, 1
951;
1954
; Aft
on
)
(Hu
gh
es a
nd
Hes
selb
o 1
997;
Nel
son
, 194
9; 1
956
Aft
on
)
(Ru
nke
l, 19
94b,
Sec
tio
n 4
)
80
100
0
20
40
60
30feet meters
7/8?
4
2
2
2
4
2/7
3/4
2/3
2/3
Natural Gamma-ray Log
increasing counts
2/1
3/2
3/2
3/2
Glau
coni
te
(Afton, Minnesota)12
sh sl vf f cm
Natural Gamma-ray Log
185810
4/5
4
4
7/2/8
2
2/7
2/3
3/2
2/3
2/7
2
2
5/4
2/34
3/2
4
4
1
1
2
2
2
5/4/3
3
3
AC-1
core
loss
BC-1
sha
leGl
auco
nite
Dept
h (ft
)
(BC-1 and AC-1, Minnesota Cores)13
*Fe (siderite)
sh sl vf f cm
Increasing counts
460
440
460
480
500
620
600
580
560
540
520
720
760
780
800
820
840
860
740
700
680
660
640
One
ota
Dol
omite
Jord
an S
and
ston
eSt
Law
ren
ce F
mTu
nnel
Cit
y G
pW
onew
oc S
SEa
u C
laire
Fm
Mt S
imon
Ss
EEEE
Pm
Rm
Cr
Cr
CrCrCeCe
Ap/DuApApAp
Du(AC-1, 804' 10")
Du(AC-1, 788' 3.5")
Pt?PtPtPtPt
Pr
Con
(AC-1 445' 8")
(548' 10")(541' 3" & 544' 4")
(551' 2")(554' 8")
(564' 10")
(650' 11" & AC-1, 686' 8")
(AC-1, 660' 6" & 661' 2")
(659' 11" & AC-1 691' 0" )(667' 0")
(684' 6" & 684' 9")
(785' 3.5" & 794' 0" & 796' 4" & 798' 6"& AC-1, 828' 7" & 829' 8.5")
(799' 0" & AC-1, 830' 2.5")
(822' 1.5")
(832' 11.5" & 833' 9")
(836' 3.7" & 836' 7" & 839' 6" & 844' 3" & AC-1, 869' 6.5")
Sw (Red Wing High School, 3.0m)
UD (Nelson, 1956)
Sal (Nelson, 1956)
601313O
neot
a D
olom
iteJo
rdan
San
dst
one
St La
wre
nce F
mLo
ne
Ro
ck F
m
Nel
son
, 195
6 R
ed W
ing
)(B
yers
an
d D
ott
, 199
5; R
ed W
ing
)
80
100
0
20
40
60
30feet meters
2/5/9
2/8/9
4
8
4/5
2
2/7
Natural Gamma-ray Log
increasing counts
2/1
3/2
3
Glau
coni
te sh sl vf f cm
(Red Wing, Minnesota)14
Gla
uco
nit
e
(Lake City, Minnesota area)15
sh sl vf f cm
Pg (Berg, 1951; Reeds unit 3)
Pg (Berg, 1954; Maple Springs)Pg (Berg, 1951; Reeds unit 5)
Ps (Berg, 1954 Maple Springs)Ps (Berg, 1954 Maple Springs)
Pr (Berg, 1954 Lake City)
El (Berg, 1951; Reeds unit 1)
UD (Nelson, 1956)
Sal (Nelson, 1956)
518703
250077
One
ota
Dol
omite
Jord
an S
and
ston
eSt
Law
renc
e Fm
Lone
Roc
k Fm
Won
ewoc
SS
(Ber
g, 1
951;
1954
; R
eed
s La
nd
ing
)
(Ber
g, 1
954;
M
aple
Sp
rin
gs)(B
erg,
195
4; L
ake
Cit
y)
(Nel
son
, 195
6, B
erg
et
al.,
1956
,Lak
e C
ity)
(Gam
ma
log
on
ly)
(gam
ma
on
ly )
80
100
0
20
40
60
30feet meters
8/5/9
3/4
3/4
4
4
3
3
2/3
3/2
2
2/7
2/7
2/1
2/1
2
Natural Gamma-ray Log
increasing counts
covered
covered
covered4/5
(Sta
uffe
r, 194
0; S
tauf
fer
and
The
il, 19
41)
Jord
an S
and
ston
e80
100
0
20
40
60
30feet meters
4
Sal (Upper 10.0m of Jordan Ss; Stauffer, 1940; revised identifications and biostratigraphic interpretation, this study. ) Gl
auco
nite
(Van Oser Creek, Minnesota area)16
sh sl vf f cm
Natural Gamma-ray Log
4/5
4
7/8/2
2
2/7
2/7
2
1
4/5
1
3/2
3/2
3/2
4
4
2
2
4
3
3
L65-2
L65-1
sha
le Gla
uco
nit
e
Dept
h(ft)
235526
*Fe (pyrite)
Increasing counts
sh sl vf f cm
*Fe (pyrite ooids)
(Lonsdale, Minnesota cores)17
620
600
580
560
540
300
320
340
260
280
360
380
420
400
740
780
800
820
760
720
700
680
660
640
On
eota
Do
lom
ite
Jord
an S
and
sto
ne
St L
awre
nce
Fm
Lon
e R
ock
Fm
Mt
Sim
on
Ss
Ea
u C
lair
e F
mW
on
ewo
c Ss
E (423'0")
Pm (441'0")
Cr?(772'5")Cr(774'8" & 775'10")
Ce(810'8")Ce(799'8" & 801'3")
Ap/Du(757'9")Ap/Du(752'9")
Ap(760'2")Ap(764'5")Ap(768'4")
4/5
4
8
2/3/7
2/3
2/7
2/7
1
Nor
th M
anka
to2.
3 an
d 4.
2 km
eas
t of J
udso
nJu
dson
Brid
ge
80
100
0
20
40
60
30feet meters
sha
leGl
auco
nite
sh sl vf f cm
One
ota
Dol
omite
Jord
an S
and
ston
eSt
Law
ren
ce F
mLo
ne R
ock
Fm
Pm (minus 2.5)
Cm (Judson 4.2; 0.0m)
RmRm
Hh (Judson 4.2 0.0m)
Fi (Judson 4.2: 1.0m)Mt(Judson 4.2: 0.8m)
Sal(upper)(Judson 2.3; 0.6m)
(1.0 to 2.0m)
Ea?( Float)
(Judson-Mankato, Minnesota area)18
Natural Gamma-ray Log
4/5
4
8/7/4
2
7/2
2/7
2
1
4/5
1
2
3/2
3/2
4
2/3
2
4
4/3/2
3
3
Will-4
Prehn-3
Dept
h(ft)
sha
leGl
auco
nite
229953
229953
229954
sh sl vf f cm
Increasing counts
*Fe
*Fe (ooids)
(ooids)
(Waseca County, Minnesota cores)19
380
400
420
440
460
620
600
580
560
540
520
500
480
800
840
860
880
900
820
780
700
680
660
640
On
eota
Do
lom
ite
Jord
an S
and
sto
ne
St L
awre
nce
Fm
Lon
e R
ock
Fm
Wo
new
oc
SSEa
u C
lair
e Fm
Mt
Sim
on
SS
Ce
Rm(368' 11")
CpFi(478' 0")"likely" Fi (480' 8")Hh
Mt (474' 1" to 474'8 ")Mt (478' 1" to 478'10")
HhHhCmCmCmEnEnEnEnEnEnEn
Pp
Pp
Pt
Cr
Cr
Cr
Ce
Ap
Ap
Ap
El (Will-4, 759', 2")
Ap
(4 levels: 467' 7" to 474' 3")
(483' 0", 488' 0", 493' 3")
(500' 0", 503' 3", 506' 5")
(515' 7")(520' 10")(525' 2")
(529' 3", 533' 5")
(549' 5")
(575' 0")
(587' 5")
(545' 4")(537' 4")
/Du (Mel-1, 830' 10")
/Du (Mel-1, 846' 3" )
(Mel-1, 861' 6")(Mel-1, 866' 0", Will-4 845' 4")
(Will-4 838' 0", 839' 10.5")
(Will-4 853' 8")
(Will-4 865' 1")
(Mel-1 936' 6" & 936' 10")
4/5
8/7/2
2
2
4
8/7
2/7
7/2
2
3/2
4/5
3/2
2
1
2
3
2
1
2
4/2
3
3
Natural Gamma-ray Log
?
Dept
h(ft)
sha
leGl
auco
nite
223082sh sl vf f cm
Increasing counts
*Fe (Fe carbs)
(H-1-A, Hollandale, Minnesota core)20
880
900
920
940
960
980
1000
1020
1180
1160
1140
1120
1100
1080
1060
1040
1300
1320
1340
1360
1400
1420
1440
1380
1280
1260
1240
1220
1200
On
eota
Do
lom
ite
Jord
an S
and
sto
ne
St L
awre
nce
Fm
Lon
e R
ock
Fm
Wo
new
oc
SSEa
u C
lair
e Fm
Mt S
imon
SS
Cm(1005')
E(1033')E(1026' 5")
E(1014')
Pm?(1047')
Cr(1401' 6")
Cr(1288' 8")
Cr (1283')
Ap
Ap
Du(1234' 11")
Cr
Ce (1443'&1458' 1"-3")
(Four levels:1266' 11" to 1274'))
(1279' 8"&1279' 10")
5
8/7/2
2
4
3
2
1
1/2
7/2
2
2
7/2
7/2
4/3
4/5
3
2
2/3
2
7
1
4
3
On
eota
Do
l.
Dept
h(ft)
sha
leGl
auco
nite Natural Gamma-ray Log
221146
221150
221146
Jord
an S
and
sto
ne
St L
awre
nce
Fm
Lon
e R
ock
Fm
Wo
new
oc
SSEa
u C
lair
e Fm
Mt Simon Ss
Schroeder-5
Schroeder-1
(Faribault County, Minnesota cores)
21*Fe (pyrite)
*Fe (pyrite)
*Fe (pyrite)
*Fe (pyrite & hematite)
sh sl vf f cmIncreasing counts
660
680
700
720
760
780
800
820
840
860
880
900
920
940
960
980
1000
740
640
620
600
580
560
540
1160
1140
1120
1100
1080
1060
1040
1020
Rm(537' 7")
Ch/HsCh/HsCh/Hs
HsHs
HsHsHsHsCeCeCeCeFiFiHhCmCmCmEn
En
Pm
PtPt
Pt-Pr (favors Pr) (WL-4, 856' 0")
Ap/Du (WL-4, 973' 5")
Ap (WL-4, 980' 5")Ap (WL-4, 982' & 982' 11.5")
Cr(WL-4, 1084' 7")
Cr (WL-4, 1114' 9.5")
Cr (WL-4, 1126' 1")Cr(WL-4, 1128' 11")
Ce(Badge, 1328' 5" and 1330' 0")
Pt-Pr
Ip
Pt
(586' 10.5" to 587' 4.5")(587' 9" to 588' 1.5")(588' 2" to 588' 5")
(634' 6" to 634' 8")(635' 3" to 635' 9")
(646' & 650'))
(652' 10" to 653' 5" & 658' 9" to 659' 3")
(662' 0" to 662' 6" & 666' 0" to 666' 5")
(672' 3" to 672' 5" )(678' 5" to 678' 11")
(690' 0" to 690' 5")(693' 3" to 693' 8" & 696')(703' 11" to 704' 1")(708' 1" to 708' 5")(717' 6" to 718' 0")(724' 6" to 724' 10")
(731' 9" to 732' 0" &734' 9" to 735' 9")(742' 2" to 742' 5")
(King-1, 765' 4")
(684' 2.5" to 684' 7" & 688')
(favors Pr)(814' 8")
8
4
4
3/4
2/3
2
2/1
1/2
2
2
2
2
43
3
3
7
7
8
8
8
8
8
8
4/5
3/2
1
3/4
3/4
Dept
h(ft)
sha
leGl
auco
nite
11749
(Peterson Core, Iowa)22
*Fe (pyrite)
*Fe (pyrite)
sh sl vf f cmIncreasing counts
Natural Gamma-ray Log
2/3
2/3
*Fe (pyrite)
One
ota
Dol
omite
Jord
an S
and
ston
eSt
Law
ren
ce F
mLo
ne R
ock
Fm
1560
1580
1600
1620
1640
1760
1740
1720
1700
1680
1660
1860
1920
1940
1960
1980
2000
2020
2040
2060
2080
1880
1840
1820
1800
1780
Wonewoc Ss
Bonn
eter
re/E
au C
laire
Mt S
imon
Ss
Ap (1959' 0")
El (1842' 0")
Pt? (1793' 0")
Cl or Ia?(1593' 5")
Cl (upper) or Ia (1621' 4")
Ci (likely Ch) (1631' 6")
Ci(1642' 0")
E(1682' 6"-1683' 0")
Pp (1724' 0"-1725' 0")
Hh (1675' 4"-1675' 8")
2
4/5
7
7
5
8
8
8
21
1
Dept
h(ft)
sha
leGl
auco
nite
(Quimby Core, Iowa)23
sh sl vf f cm
*Fe (oolites)
1320
1340
1360
1380
1500
1480
1460
1440
1420
1400
1600
1640
1620
1580
1560
1540
1520
One
ota
Dol
omite
Jord
an S
and
ston
eS
t La
wre
nce
Fm
Dav
is F
mBo
nnet
erre
Mt S
imon
Ss
Rm(1312' 5")
CeCeCe
Ce(1346' 9")
Ce(1363' 0")
Cp(1372' 8.5")
Cp(1392' 7")
Pp(1402' 6.6")
El(1541' 9")
Co(1507' 6.5")
Ce(1621' 5")
Du(1558' 8") Ap(1564' 7" and 1565' 1")
(four levels:1322' 5" to 1336' 0")
7
4
3/22
1/2
8/1
2/34
8/7
Dept
h(ft)
sha
leGl
auco
nite
25498
*Fe (pyrite)
sh sl vf f cm
Increasing counts(Camp Quest Core, Iowa)
24
840
860
880
900
1020
1000
980
960
940
920
780
800
820
1040
St P
eter
Ss
St
La
wre
nc
e
Dav
is F
m
Wonewoc Ss
Bonn
eter
reM
t Sim
on S
s
Natural Gamma-ray Log
Ap/Du (941' 3" to 941' 4")
Natural Gamma-ray Log
1/7
7/2
7
7
3/4
3/4
4/3/24/5
1
2
Dept
h(ft)
sha
leGl
auco
nite
*Fe (ooids)
sh sl vf f cmIncreasing counts
R20-2002-01
720
760
780
800
820
840
860
880
900
740
700
Dav
is F
mSt
Pet
er ss
Wo
ne
wo
c Ss
Eau
Cla
ire F
mBo
nnet
erre
/M
t Sim
on S
s
Ip(725' 0")
Co(741' 0" & 742'0"))
Ap(822' 0")
Ip(706' 0")
(R20-2002-01 Core, South Dakota)25
Pr (Berg, 1951; unit 9; Horseshoe Bluff )
Pr (Berg, 1951; unit 7; Horseshoe Bluff )
Pr (Berg, 1951; unit 5; Horseshoe Bluff )
Pr (Berg, 1951; unit 3; Cooley Hill)
Pt (Berg, 1951; unit 3; Cooley Hill)
Co (Mn)(Berg, 1951; unit 1; Cooley Hill)
Co (Eo) (Berg, 1951; unit 3; Horseshoe Bluff )Im (Berg, 1951; unit 3; Horseshoe Bluff )El (Berg, 1951; unit 1; Horseshoe Bluff )
Glau
coni
te
(Horseshoe Bluff, Cooley Hill, Wisconsin)26
sh sl vf f cmTu
nnel
Cit
y G
pW
on
ewo
c Ss
(Ber
g,, 1
951
1954
; Coo
ley
Hill
)(B
erg,
, 195
1 19
54;
Hor
sesh
oe B
luff
)(B
erg,
, 195
1 19
54;
Hor
sesh
oe B
luff
)
80
100 30
0
20
40
60
feet meters
covered
covered
covered
covered
4
3/2
3/2
3/4
3/4
4/?3
2
fauna and facies from "float" blocks
Pr (Berg, 1951; unit 5)
Pt (Berg, 1951; unit 5)
Co(Ta) (Berg, 1951; unit 5)
Im (Berg, 1951; unit 4)El (Berg, 1951; unit 2)
UD (Nelson, 1956 Lodi)
UD (Nelson, 1956 Lodi)
UD (Nelson, 1956 Lodi)
UD (Nelson, 1956 Lodi)
Oo (Nelson, 1956 Lodi, Madison)
Tunn
el C
ity
Gp
Won
ewoc
Ss
Eau
Cla
ire F
m
Mt S
imon
Ss
(Do
tt e
t al
., 19
86:D
ells
are
a)
(Asw
aser
eele
rt, 2
005)
(Ber
g,, 1
951
1954
; Fri
end
ship
Mou
nd
)
80
100 30
0
20
40
60
feet meters
covered
covered
4
4/5
?4/5?
?3/4/5?
?3/4/5?
2/3
6
2
E (Madison, upper Sunset Pt mbr.)
St L
aw. F
mO
neot
a D
olom
iteJo
rdan
San
dsto
ne
(Nel
son
, 195
6;
Twen
ho
fel e
t al
., 19
35; M
adis
on
, Lo
di)
(Od
om
, 197
8, p
.101
; an
d B
yers
an
d D
ott
, 199
5; S
un
set
Poin
t)2/3
2/1
2/3?
7/1
7/1
4
7/23/2
Glau
coni
te
(Friendship Mound, Lodi, Madison, Dells area, Wisconsin)27
sh sl vf f cm
5/4/9
Sasz (Hughes and Hesselbo, 1997)
Oo (Nelson, 1956)
Ca or Rm (Parsons and Clark, 1999; Miller's Curve locale)
Pp(0.3 and minus 0.1m)
St L
awre
nce
FmO
neot
a Do
lom
iteTu
nnel
Cit
y G
p
(Ber
g, 1
951,
19
54; B
lack
Ear
th)
(Hu
gh
es, a
nd
Hes
selb
o,
1997
; Nel
son
, 195
6;Th
is s
tud
y)
80
100 30
0
20
40
60
feet meters
5/4
2
2
3/2
3/2
3/?4
2/7
2/7
7/2
Glau
coni
te
(Black Earth, Wisconsin)28a
sh sl vf f cm
C o (B erg, 1951; unit 8)(E orthis only)
UD (Nelson, 1956)E (n) (minus 9.8m)
E (n) (minus 0.1m)
"Ordovician" (3.0m)C a or R m (P arsons and C lark, 1999)
E (n) (minus 12.0m)
St L
awre
nce
FmO
neot
a D
olom
iteT
unne
l City
Gp
Won
ewoc
Ss?
(Be
rg,
19
51
, 1
95
4;
Fe
rry
Blu
ff)
(Be
rg,
19
54
; M
azo
ma
nie
)(H
ug
he
s, 1
99
4;
Ma
zom
oa
ie;T
his
Stu
dy)
80
100 30
0
20
40
60
feet meters
2/1
2/1
7/3/4?
2/1/7
2/1/7
covered
covered
covered
covered
3/4
3/4
5/4
5/8?
3/2
3/4
4/3
4
4/5
Gla
ucon
ite
(Mazomanie, Ferry Bluff, Wisconsin)
28b,c
sh s l vf f cm
El(Berg, 1951; unit 3, Goodenough Hill)
El (Berg, 1951; unit 4; Goodenough Hill)Co (Ppa) (Berg, 1951; unit 7; Goodenough Hill)Co (Mn) (Berg, 1951; unit 7; Goodenough Hill)
Co (Berg, 1951; unit 8;Goodenough Hill)
Co (Berg, 1951; unit 9; Goodenough Hill)
Pt (Pg) (Berg, 1951; unit 10;Goodenough Hill)
Pt (Pg) (Berg, 1951; unit 11;Goodenough Hill)
Pr (Berg, 1951; unit 14;Goodenough Hill)
Pt (Berg, 1951; unit 12 ;Goodenough Hill)
Pt (Berg, 1951; unit 14 Woodhill)
UD (Nelson, 1956)St L
awre
nce
FmTu
nnel
Cit
y G
pW
onew
oc S
s
(Ber
g, 1
951,
195
4; G
oo
den
ou
gh
Hill
)
(Nel
son
, 195
6;
Go
od
eno
ug
h H
ill)
80
100 30
0
20
40
60
feet meters
?6/5/4
4/3
3/2
3
3/2
2
2/3
2/1
covered
4
4
2/3
5
1
(no
nm
arin
e in
terp
.b
ased
on
nea
rby
sect
ion
sin
Ste
nze
l, 19
83)
Gla
ucon
ite
(Hustler, Woodhill, Goodenough Hill, Wisconsin)
29
*Fe-rich
sh sl vf f cm
UD (Nelson, 1956)
UD (Nelson, 1956)
St L
aw.F
mJo
rdan
Ss
One
ota
Dolo
mite
Tunn
el C
ity
Gp
(Ber
g, 1
954
Spri
ng
Gre
en)
(Nel
son
, 195
6;
Spri
ng
Gre
en)
(Ru
nke
l, 19
94a)
80
100 30
0
20
40
60
feet meters
3/2
3/4
2/3
2/1
7/2
covered
4
3
4/5/8/9Gl
auco
nite sh sl vf f cm
(Spring Green, Wisconsin)30
Ip (Berg, 1951; unit 17)
Co (Mn) (Berg, 1951; unit 9)
UD (Nelson, 1956)
Co (Berg, 1951; unit 9) (Ppa)
St L
aw.F
mJo
rdan
San
dsto
neO
neot
a Do
lom
iteTu
nn
el C
ity
Gp
Won
ewoc
Ss
(Ber
g, 1
951,
195
4 Tu
nn
el C
ity)
(Nel
son
, 195
6;
Tun
nel
Cit
y)(T
wen
ho
fele
t al
., 19
35 T
un
nel
Cit
y)
(Tw
enh
ofe
let
al.,
1935
Tu
nn
el C
ity)
80
100 30
0
20
40
60
feet meters
5/4
6?
5?
3/2
4/3
3/2
3/2
3/2
2/1
7/2
2
3/4
3
3/4covered
covered
Glau
coni
te sh sl vf f cm
(Tunnel City, Wisconsin)31
P t (B erg, 1951; unit 5)
UD(Nelson, 1956)UD(Nelson, 1956)
UD(Nelson, 1956)
C o (B erg, 1951; unit 3)(Mn)C o (B erg, 1951; unit 3)(Mn)
C o (B erg, 1951; unit 2)(Mn)
C o (B erg, 1951; unit 2)(P pa)C o (B erg, 1951; unit 2)(P pa)
St L
aw.F
mJo
rdan
Ss
One
ota
Dol
omite
Tun
nel C
ity G
p
(Be
rg,
19
51
, 1
95
4 M
ayn
ard
Pa
ss)
(Ne
lso
n,
19
56
; R
ich
lan
d C
en
ter)
(Tw
en
ho
fel e
t a
l.,1
93
5 R
ich
lan
d C
en
ter)
80
100
0
20
40
60
30
feet meters
5?
3/2
4/3
3/4
2/3
2/3
2/1
7/2/1
2
3 (? )
covered
Gla
ucon
ite
(Maynard Pass, Richland Center, Wisconsin)
32
sh s l vf f cm
UD (Nelson, 1956)
UD (Nelson, 1956)
UD (Nelson, 1956)Oo (Nelson, 1956)
Oo (Nelson, 1956)
Glau
coni
te
sh sl vf f cm
(Gothum, Wisconsin)32b
St L
awre
nce
FmTu
nnel
City
Gp
(Nel
son
, 195
6; G
oth
um
)
80
100 30
0
20
40
60
feet meters
3/2
2/1
7/2/1
El (Berg, 1951Franklin unit 4)El (Berg, 1951; Brush Creek unit 4)Co (Berg, 1951; Brush Creek unit 6)
Co (Berg, 1951; Brush Creek unit 8)Co (Berg, 1951; Franklin unit 10)(Ta)
Co (Berg, 1951; Franklin unit 8)(Mn)Co (Berg, 1951; Franklin unit 8)(Mn)Co (Berg, 1951; Franklin unit 8)(Ppa)
St L
awre
nce
FmTu
nnel
Cit
y G
pW
onew
oc S
s Ea
u C
laire
Fm
Mt S
imon
Ss
(Ber
g, 1
951,
195
4 B
rau
sh C
reek
an
d F
ran
klin
)
(Wes
tby
Cit
y W
ell #
5)
80
100
0
20
40
60
30feet meters
5/4
5/4?
5/4/?6
5/4/?6
3/2
2/3
5/4/3
2/3
2/3
1/2
2
4
4
covered
covered at Brush Creek
covered at Brush Creek
covered at Franklin
Glau
coni
te sh sl vf f cm
(Westby, Brush Creek, Franklin, Ontario, Wisconsin)33
(Ste
nze
l, 19
83; D
ott
et
al.,
1986
; On
tari
o ) 5/4
5/4
6
6
3/4
?
El (Berg, 1951; unit 9)
Cr (Twenhofel et al., 1935, unit 1)
"mixed" E/Ca(0.9m)Ca (2.4m)
En(minus 13.0m)
Glau
coni
te
sh sl vf f cm
(Coon Valley, Wisconsin)34
One
ota
Dolo
mite
Jord
an S
and
ston
eSt
Law
renc
e Fm
Lone
Roc
k Fm
Won
ewoc
Ss
(Ber
g, 1
951)
(Od
om
an
d O
stru
m, 1
978)
80
100
0
20
40
60
30feet meters
5/4/8/9
4
4
3
5/4
6?
2/3
3/2
3/2/7
2/3
2/3
2/1
1/2
1/2/7
2/3/7
2
2
2
4
6?
6?
4
covered
covered
covered
covered
Ca (Nelson, 1956)Ca (Nelson, 1956)
UD (Nelson, 1956)
Oo (Nelson, 1956)
Oo (Nelson, 1956)
E(lowest carbonate bed, east-facing road cut)
E(8.7m)
Pm(6.6m)
Pm(3.8m)
Pm(1.3m) Pt(0.1m)
E(16.7m)E(15.2m)E(13.3m)E(12.2m)
Jord
an S
and
ston
eSt
Law
renc
e Fm
Lone
Roc
k Fm
(Hu
gh
es a
nd
Hes
selb
o, 1
997;
Th
is s
tud
y)
(Ost
rum
, 198
7)
80
100
0
20
40
60
30feet meters
3/2
3/2
2/3
5/4
3/4
2/1
2/1
2/7?
2/7
2/7
4/5
5/9?O
neo
ta D
olo
mit
eGl
auco
nite
(Arcadia, Wisconsin ) 35
sh sl vf f cm
Gla
ucon
ite
(LaCrescent, Minnesota, area)36
sh sl vf f cm
Pr (Twenhofel et al., 1935; Victory)
Pr (Berg, 1951; Hell Hollow unit 11)Pr (Berg, 1951; Hell Hollow unit 9)
Pt (Berg, 1951; Mt Tom unit 19)
Pt (Ps) (Berg, 1954;Hell Hollow unit 2)
Co (Ta) (Berg, 1951; Hell Hollow unit 4)
Co (Ta) (Berg, 1951; Hell Hollow unit 4)
Co (Eo) (Berg, 1951; Brownsville unit 3)
Ip (Berg, 1951, Hell Hollow unit 17)
El (Berg, 1951; Brownsville unit 2)El (Berg, 1951; Hell Hollow unit 1)
Cr (Runkel et al., 1998; Dresbach)
Cr (Berg, 1951; LaCrescent, unit 1)
Cr (Twenhofel et al., 1935))
Ca (Nelson, 1956)Ca (Nelson, 1956)
UD (Nelson, 1956)UD (Nelson, 1956)
Sal (Nelson, 1956)
(Twenhofel et al., 1935))Cr
227847
227847546911
One
ota
Dolo
mite
Jord
an S
and
ston
eSt
Law
renc
e Fm
Lone
Roc
k Fm
Won
ewoc
Ss
Eau
Cla
ire F
mM
t Sim
on S
s
(Ber
g, 1
951;
1954
; B
row
nsv
ille)
(Ber
g, 1
951,
195
4; H
ell H
ollo
w)
(Nel
son
, 195
6, V
icto
ry)
(Do
tt a
nd
Bye
rs, 1
980;
LaC
resc
ent
(gam
ma
on
ly )
(Ru
nke
l et
al.,
1998
, Dre
sbac
h)
(Ru
nke
l et
al.,
1998
, La
Cre
scen
t)
(Tw
enh
ofe
l et
al.,
1935
, Dre
sbac
h)
(gam
ma
on
ly )
80
100
0
20
40
60
30feet meters
4/3
5/4/9
4
8
3
3
3/4
3/4
3/?4
3/4
3/4
2/3
2/3
2/3
2/3
2/3
4/5/3
2/3
3/2
3/2
2/1
2/1
2/7
2/7?
2/3/7
2
2
2
2
2
2
2
2
2
Natural Gamma-ray Log
increasing counts
5
4
4
covered
Ca (29.0m)
Ca(30.8m)
E(28.0m)E(27.6m)
E(24.6m)E(22.8m)E(21.83m)
E(16.4m)E(15.5m)E14.3m)
E(7.3m)
E(4.1m)
E(minus 5.7m)
Jord
an S
and
ston
eO
neot
a D
olom
iteSt
Law
renc
e Fm
(Ru
nke
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sec
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4; R
un
kel e
t al
., 19
99; t
his
stu
dy)
80
100
0
20
40
60
30feet meters
4/5
5
4
2
2/1
43
2/3
2/3
5/4/9/8 8
Glau
coni
te
(Homer, Minnesota)37
sh sl vf f cm
Natural Gamma-ray Log
556316
5
8/9/5
4
7/2
7/2
1/2
2
2
7/2
4/5
3/2
4
3
3
2/3
4
4
2
4/2
3De
pth(
ft)
sha
leGl
auco
nite
(B0-1 core, Minnesota)38
*Fe (pyrite)
sh sl vf f cmIncreasing counts
320
340
300
360
380
400
420
440
460
620
600
580
560
540
520
500
480
740
760
780
800
840
860
880
900
820
720
700
680
660
640
On
eota
Do
lom
ite
Jord
an S
and
sto
ne
St L
awre
nce
Fm
Lon
e R
ock
Fm
Wo
new
oc
SsEa
u C
lair
e Fm
Mt Simon Ss
E
E
E
E
E
E
EE
Pm
PmPm
Pp
Upper Cp through Rm
Hh
Cr
Cr
Ce
Ce
Ip
Pr
PtPt
ApApAp
Ap
(B-1, 239' 6")
(B-1, 249' 10")
(B-1, 303' 0" )
Cr (785' 9" )
(B-1, 338' 7")
(B-1, 375' 2")
(B-1, 393' 0" & 395' 2.5")
(310' 6")
(320')
(390' 10")
(408' 0")
(434' 6")
(443' 0")
(450' 0")
(459' 6")
(467' 0")(472' 6")
(485' 6")
(499' 0")(504' 6")
(509' 0")
(517' 10" & 518' 3" & 520' 6")
(571' 6")
(609' 6")
(615' 1")
(B-1, 230' 3" & 230' 5" & 234' 4" & 234' 6")
Core or outcrop control point
Borehole identifier
Natural gamma-ray log used at outcrop/core
Natural gamma-ray log between outcrop/core
County boundary
Name of County
Line of projection on to cross-sections
Line of cross-section
State boundary
Wisconsin
Wisconsin
Iowa
Minnesota
Minnesota
Min
neso
ta
Wisconsin
110496
605073
542782689426
678999
127258
213615
213504
224426
255945219483
185810225647
559346
626765516404556135 680271
556149
554229401075
475354 109714
122050617245698228
663200448708
471460446319
505352708084678136511735679953
493249645623447205
453239 453239
217898603082
500794
208791
208328233089236153
241941
496285
255965
643505
509056255913
213678213677213106213679213681213683213680213682212966212970229953212969212961229952212972
212976212978
229954
212997
212981212982
213106
213678213677
221090
214034221126
221139221138
231722231724221140231729224672231704
231706231712
231708231728231731
231721
221144 (221146 &221150)
221151221114 223082
556316
536312542779
546911
231847
250077
518703
601313
231851
235526
1
12
13
16
17
1819
21 20
14
37
38a
36e
36c
36a36b
36d38b
15a-d
0
0 100 kilomters
50 miles
Figure DR1 Location map providing location and identification number for boreholes with natural gamma-ray logs used in the construction of cross-sections in Figures 6 and 7. Precise locality information for gamma-ray logs is available in the County Well Index maintained by the Minnesota Geological Survey. See Figure 1 for regional location.
Runkel et al
Runkel et al. Data Repository information
Locality information for control points that support cross sections in Figures 6 and 7.
Includes name, location, and principal sources of stratigraphic information from previous
workers. “Gamma-ray unique number” is an identifier used by the Minnesota Geological
Survey for borehole natural gamma-ray log used to augment sections where core is
incomplete or outcrops partly covered, shown as dashed lines below control points in
Figures 6 and 7.
1 Taylors Falls: Outcrops near Taylors Falls, Chisago County, Minnesota. Lone Rock
and Mazomanie Formations in road cut on north side of U.S. Highway 8, extending
between 2.3 and 2.7 km east of intersection with Minnesota State Highway 95 (about
2.4 km southwest of downtown Taylors Falls). NE1/4, SE1/4, SE1/4 sec. 35, T34N,
R19W. Eau Claire through lower Lone Rock Formations along Pine Point Trail, about
1.3 km southwest of downtown Taylors Falls, in Interstate Park, north of U.S.
Highway 8. NE1/4, NW1/4, NW1/4 sec. 36, T34N, R19W. Nelson (1949), Berg
(1951, 1954). Mill Street conglomerate exposed in an approximately 400 meter SW-
NE trending, narrow belt of outcrops paralleling Mill Street, about 20-50 m north of
street, Taylors Falls, adjacent to northern boundary of Interstate Park. SE1/4, SW1/4,
SE1/4 sec. 25, T34N, R19W. Berkey (1897), Berg (1954).
2 Franconia: Bluffs along east and west side of Lawrence Creek, near village of
Franconia, Chisago County, Minnesota. NE1/4, SE1/4 sec. 3, and NW1/4, SW1/4,
SW1/4 sec. 2, T33N, R19W. Nelson (1949), Berg (1951, 1954).
3 Osceola: Cascade Falls section on Mill Creek and Eagle Point Bluff in southern part of
Osceola, Polk County Wisconsin. Mazomanie Formation up to base of Jordan
Sandstone is in ravine north of Wisconsin Highway 243; Jordan Sandstone through
lower Oneota Dolomite is in road cuts and bluff on south side of Wisconsin Highway
243. NW1/4, SW1/4, SW1/4 sec. 27, T33N, R19W. Nelson (1949, 1956), Hughes and
Hesselbo (1997).
4 Osceola Southwest: Outcrop along west bank of St. Croix River, Chisago County,
Minnesota. About 3.2 km south of Osceola, Wisconsin. SW1/4, NE1/4, NE1/4 sec.
32, T33N, R19W. Runkel (1994b). Gamma-ray unique number 516404.
5 Soo Drawbridge: At falls in tributary to St. Croix River west of railroad drawbridge.
Washington County, Minnesota. SW1/4, SE1/4, NW1/4 sec. 7, T32N, R19W. Nelson
(1956). Gamma-ray unique number 475354.
6 Copas: Near town of Copas, Washington County, Minnesota. Lone Rock and
Mazomanie Formations in ravine leading to St. Croix River, W1/2, SE1/4 sec. 19,
T32N, R19W. Nelson (1949), Berg (1951, 1954). Jordan Sandstone in ravine in
SE1/4, NW1/4, SW1/4 sec. 19, T32N, R19W (unpublished Minnesota Geological
Survey (MGS) measured section, 1981). Gamma-ray unique number 122050.
7 Marine: Near and within town of Marine, Washington County, Minnesota. Lone Rock
and Mazomanie Formations along west bank of St. Croix River, and along Ferry and
Mill Creeks, W1/2 sec. 6, T31N, R19W. Berg (1951, 1954). Jordan Sandstone along
County Road 7 southwest of town, NE1/4, SE1/4, SE1/4 sec. 12, T31N, R20W
(Nelson, 1949). Gamma-ray unique number 617245.
8 Arcola: Near Arcola, Washington County, Minnesota. In ravine east of Minnesota
Highway 95, S1/2, SE1/4, NE1/4 and NW1/4, NE1/4, SE1/4 sec. 30, T31N, R19W.
Nelson (1949, 1956), Berg (1951, 1954). Gamma-ray unique number 698228.
9 Lookout Point: Outcrop along east side of Minnesota Highway 95, 2.3 km north of
junction with Minnesota Highway 96, Washington County, Minnesota. NW1/4,
SW1/4, NW1/4 sec. 14, T30N, R20W. Runkel (1994b). Gamma-ray unique number
448708.
10a Stillwater: In city of Stillwater, Washington County, Minnesota. Jordan Sandstone
and lower Oneota Dolomite at NW corner of intersection of Minnesota Highway 95
and Elm Street, Washington County. NW1/4, NE1/4, NE1/4 sec. 28, T30N, R20W.
Runkel (1994b). Lone Rock, Mazomanie, and St. Lawrence Formations at “Boom
Hollow,”along west bank of St. Croix River and on bluffs on west side of Minnesota
Highway 95, SE1/4, NW1/4, SE1/4 sec. 15, T30N, R20W. Nelson (1949), Berg et al.
(1956). Gamma-ray unique number 471460.
10b Little Falls Dam: Eau Claire and lower Wonewoc Formations below outlet for Little
Falls Dam on north bank of Willow River, St. Croix County, Wisconsin, NE1/4 ,
SW1/4, NE1/4 sec. 8, T29N, R 19W. Nelson (1949), Runkel et al. (1998).
11 Hudson: Outcrops and road cuts in south part of city of Hudson, St. Croix County,
Wisconsin. Cuts exposing upper Wonewoc and lower Lone Rock Formations along
east side of Wisconsin Highway 35, and natural exposures of Lone Rock and
Mazomanie on bluffs above. SE1/4, SE1/4, NW1/4 and NE1/4, SW1/4 sec. 25, T29N,
R 20W. Nelson (1949), Berg (1951, 1954).
12 Afton, Minnesota: Outcrops and small road cuts about 0.8 to 1.6 km south of city of
Afton on east and west sides of Douglass Road, Washington County, Minnesota.
NW1/4, NE1/4, NE1/4 sec. 27, and SW1/4, SE1/4, SE1/4 sec. 22, T28N, R20W. Berg
(1951, 1954), Hughes (1993), Hughes and Hesselbo (1997), Runkel, (1994b).
Gamma-ray unique number 453239.
13 BC-1 and AC-1: Cores, Ramsey County, Minnesota, SW1/4, NE1/4, SW1/4 sec. 21,
T29N, R23W. Mossler (1992); Runkel et al. (1998). Gamma-ray unique number
185810.
14 Red Wing: West side of Barns Bluff, near south end of Mississippi River bridge in
city of Red Wing, Goodhue County, Minnesota. SE1/4, NE1/4, NE1/4 sec. 30, and
SW1/4, NW1/4, NW1/4 sec. 29, T113N, R14W. Oneota Dolomite trilobite collection
from road cut on south side of Goodhue County Road 21, across from City of Red
Wing High School, NW1/4, NW1/4, SE1/4, sec. 5, T112N, R14W. Nelson (1956),
Byers and Dott (1995). Gamma-ray unique number 601313.
15a Lake City: Upper Lone Rock, St. Lawrence and lower Jordan Sandstone in quarry
and natural outcrop on bluff about 1.6 km west of Lake City, Wabasha County,
Minnesota. NE1/4 sec. 7, T111N, R12W. Nelson (1956), Stauffer and Theil (1941).
Gamma-ray unique number 518703.
15b Lake City: Middle part of Lone Rock Formation in outcrops on bluff and road cuts
on south side of US Highway 61 about 1.6 to 2.4 km east of Lake City, Wabasha
County, Minnesota. N1/2, SW1/4 sec. 13, N1/2, NW1/4 sec. 14, T111N, R12W. Berg
(1954), Berg et al. (1956), Grant (1962). Gamma-ray unique number 518703.
15c Maple Springs: Lower part of Lone Rock Formation in outcrops on bluff, ravine and
road cuts on south side of US Highway 61 at Maple Springs, Wabasha County,
Minnesota. SW1/4, SE1/4 sec. 17, and S1/2, SW1/4 sec. 16, T111N, R11W. Berg
(1954), Grant (1962), (Mossler, 2001). Gamma-ray unique number 518703.
15d Reads Landing: Lower part of Lone Rock Formation in ravine and road cuts on
south side of US Highway 61 at Reads Landing, Wabasha County, Minnesota. SE1/4,
SE1/4, NW1/4 sec. 24, T111N, R 11 W Berg (1951, 1954), Berg et al. (1956).
Gamma-ray unique number 518703.
16 Van Oser Creek: Quarry and scattered outcrops along “Van Oser” (now “Sand”)
Creek. SE1/4, SW1/4, SW1/4 sec. 33, T115N, R23W, and N1/2, NW1/4 sec. 4,
T114N, R23W. Stauffer (1940), Stauffer and Theil (1941).
17 Lon (Lonsdale) 65-2 and 65-1: Cores, Rice County, Minnesota. Lon 65-1, NW1/4,
SW1/4, SW1/4 sec. 14, T112N, R21W. Lon 65-2, NW1/4, NW1/4, NW1/4 sec. 14,
T112N, R21W. Mossler (1992), Runkel et al. (1998). Gamma-ray unique number
235526.
18 Judson-Mankato: Outcrops between the cities of Judson and North Mankato,
Nicollet County, Minnesota. Upper Lone Rock and lower St. Lawrence Formations
beneath and along west side of bridge on north bank of Minnesota River SW1/4,
NE1/4, SE1/4 sec. 33, T109N, R28W. St. Lawrence Formation and lower Jordan
Sandstone in shallow ravines that cross County Road 41 2.3 km east of Judson
(SE1/4, SW1/4, SW1/4 sec. 35, T109N, R28W, and NE1/4, NW1/4, NW1/4 sec. 2,
T108N, R28W) and 4.2 km east of Judson (NE1/4, NW1/4 sec. 1, T108N, R28W).
Upper Jordan and lower Oneota Formations in North Mankato on bluffs along north
side of County Road 41, NE1/4, NW1/4, NE1/4 sec. 14, T 108N, R27W.
19 Prehn-3 and Will-4: Cores, Waseca County, Minnesota, Prehn-3, SE1/4, NE1/4,
SW1/4 sec. 6, T108N, R22W. Will-4 (L. Williams-4), NW1/4, SW1/4, NE1/4 sec. 7,
T108N, R22W. Additional trilobite and collections from nearby core Mel-1, Rice
County, Minnesota, SW1/4, SE1/4, SW1/4, sec. 28, T109N, R22W. Mossler (1992),
Runkel et al. (1998). Gamma-ray unique numbers 229954 and 229953.
20 H-1-A (“Hollandale”): Core, Freeborn County, Minnesota, SE1/4, SE1/4, SW1/4 sec.
7, T103N, R19W. Mossler (1992), Runkel et al. (1998). Gamma-ray unique number
223082.
21 Sch-1 (Schroeder), Sch-5 (Schroeder): Cores, Faribault County, Minnesota. Sch-1,
SW1/4, SE1/4, SW1/4 sec. 28, T103N, R24W. Sch-5, SW1/4, SE1/4, SW1/4 sec. 28,
T103N, R24W. Additional trilobite and conodont collections from nearby cores: Wl-
4, NE1/4, NW1/4, SW1/4 sec. 36, T103N, R25W; Gerber-1, SW1/4, SW1/4, NE1/4
sec. 8, T102N, R24W; Flo-1, SE1/4, SW1/4, SW1/4 sec. 11, T101N, R25W; and
Kingstrom-1, NE1/4, NW1/4, NW1/4 sec. 6, T101N, R24W. Mossler (1992), Runkel
et al. (1998). Gamma-ray unique numbers 221146 and 221150.
22 Peterson-1: Core, Webster County, Iowa. NE1/4, NE1/4, NW1/4 sec. 10, T90N,
R27W. Runkel et al. (1998). Gamma-ray unique number 11749.
23 Quimby: Core, Cherokee County, Iowa. NW1/4, NW1/4, NE1/4 sec. 34, T90N,
R41W. Runkel et al. (1998).
24 Camp Quest: Core, Plymouth County, Iowa. SW1/4, NW1/4, SW1/4 sec. 2, T92N,
R45W. Runkel et al. (1998). Gamma-ray unique number 25498.
25 Elk Point: Core, Union County, South Dakota. NW1/4, NW1/4, NE1/4 sec. 13,
T90N, R50W. McCormick (2005). Gamma-ray unique number R20-2002-01.
26a Horseshoe Bluff: Upper Wonewoc Sandstone and lower Lone Rock Formation in
shale pit and bluff exposures along County Road G, Adams County, Wisconsin.
SW1/4, NE1/4 sec. 11, T17N, R7E. Berg (1951, 1954).
26b Cooley Hill: Lone Rock and Mazomanie Formations in quarry and road cuts on
County Road B, Adams County, Wisconsin. NW1/4, SW1/4, NW1/4 sec. 31, T16N,
R7E. Berg (1951, 1954).
27a Friendship Mound: Wonewoc Sandstone, Lone Rock and Mazomanie Formations
on the south end of bluff “Friendship Mound”, Adams County, Wisconsin. NE1/4
sec. 6, and NW1/4 sec. 5 T17N, R6E. Berg (1951, 1954).
27b Lodi: St. Lawrence Formation and lower Jordan Sandstone in ravine on south face
of Gibraltar Bluff, Columbia County, Wisconsin. SW1/4, SE1/4 sec. 18, T10N, R8E.
Raasch (1939), Nelson (1956).
27c Madison: Outcrops and core within and near city of Madison, Dane County,
Wisconsin. Upper Mazomanie and St. Lawrence Formations exposed at Farwell
Point, on north shore of Lake Mendota NE1/4 sec. 34, T8N, R9E. Twenhofel et al.
(1935), Nelson (1956). Upper Jordan Sandstone and Oneota Dolomite exposures
along Bluff Street and in abandoned quarry to south of street in Hoyt Park, SE1/4,
SE1/4, NE1/4 sec. 20, T7N, R9E. Byers and Dott (1995), Odom (1978). Eau Claire
Formation through lower Lone Rock from core, Nine Springs area near Madison,
SW1/4 sec. 30, T7N, R10E (Aswasereelert, 2005).
27d Wisconsin Dells: Wonewoc Sandstone and lower Lone Rock Formation along
Wisconsin River and tributaries at Wisconsin Dells, southeast Juneau and northeast
Sauk counties, Wisconsin. From composite measured sections in Dott et al. (1986).
28a Black Earth: Upper Mazomanie Formation through Oneota Dolomite along road cut
and in bluff on north side of US Highway 14, about 1.6 km southeast of Black Earth,
Dane County, Wisconsin. NW1/4, SE1/4, SW1/4 sec. 25, T8N, R6E. Berg (1951,
1954), Nelson (1956), Hughes and Hesselbo (1997).
28b Mazomanie: Upper Mazomanie Formation through Oneota Dolomite along road cut
and in bluff on south side of US Highway 14, in east end of Mazomanie, Dane
County, Wisconsin. NE1/4, SE1/4, NW1/4 sec. 16, T8N, R6E. Berg (1954), Nelson
(1956), Odom (1978), Runkel (1994a), Hughes and Hesselbo (1997), Parsons and
Clark (1999).
28c Ferry Bluff: Bluff and river bank exposures of Wonewoc Sandstone through upper
Mazomanie and Lone Rock Formations along north side of Wisconsin River, Sauk
County, Wisconsin. NW1/4, NW1/4 sec. 29, and E1/2, SW1/4 sec. 20, T9N, R6E.
Berg (1951, 1954).
29a Goodenough Hill: Wonewoc Sandstone through lower St. Lawrence Formation
along road cuts on old Wisconsin Highway 71 at Goodenough Hill, Juneau County,
Wisconsin. E1/2 sec. 13, T15N, R2E. Berg (1951, 1954), Nelson (1956).
29b Woodhill: Wonewoc Sandstone through middle Mazomanie/Lone Rock Formations
along road cuts on Wisconsin Highway 80 at Woodhill, Juneau County, Wisconsin.
E1/2 sec. 3, T15N, R2E. Berg (1951, 1954).
29c Hustler: Wonewoc Sandstone through lower Mazomanie/Lone Rock Formations
along road cuts and in shale pit along County Road H, Juneau County, Wisconsin.
E1/2, NE1/4 sec. 31, T16N, R2E. Berg (1951, 1954).
30 Spring Green: Mazomanie/Lone Rock and St. Lawrence Formations in quarry and in
road cuts along Wisconsin Highway 23 about 2.6 km north of Spring Green, Sauk
County, Wisconsin. NE1/4 sec. 36, T9N, R3E. Berg (1954), Nelson (1956). Jordan
Sandstone and lower Oneota Dolomite on east side of Wisconsin Highway 23 about 4
km north of Spring Green NW1/4, SW1/4, SW1/4 sec. 30, T9N, R4E. Odom (1978),
Runkel (1994a).
31 Tunnel City: Quarry, road and railroad cuts in and around Tunnel City, Monroe
County, Wisconsin. Wonewoc Sandstone in cuts along railroad tracks east and west
of town secs. 25 and 26, T18N, R2W. Twenhofel et al. (1935). Upper Wonewoc
Sandstone and Lone Rock Formation in road cuts along Wisconsin Highway 21 west
of town, SW1/4, NW1/4 sec. 25, and NE1/4 sec. 26, T18N, R2W. Berg (1951, 1954).
Upper Lone Rock Formation through lower Oneota Dolomite in quarry and bluff
exposures about 2.4 km north of town, near Elder Road, NE1/4 sec. 23, T18N, R2W.
Twenhofel et al. (1935).
32a Maynard Pass: Mazomanie/Lone Rock through lower St. Lawrence Formations in
road cuts along Interstate 90 about 9.7 km west of Tomah, Monroe County,
Wisconsin. NW1/4 sec. 22, T17N, R2W. Berg (1951, 1954).
32b Gotham: Composite upper Lone Rock and St. Lawrence Formation sections from
outcrops 3.2 to 6.4 km east of Gotham, Richland County, Wisconsin. Sections 25-28,
and 34, T9N, R2E. Raasch (1939), Nelson (1956).
32c Richland Center: Upper Lone Rock through lower Oneota Dolomite in quarry and
bluff exposures in south end of Richland Center, Richland County, Wisconsin.
NW1/4, SE1/4 sec. 21, T10N, R1E. Twenhofel et al. (1935), Nelson (1956).
33a Ontario: Wonewoc Sandstone and lower Lone Rock Formation in bluff exposures
and road cuts near Ontario, Wisconsin. Road cut on Highway 131 north of town,
NW1/4, NW1/4 sec. 35, T15N, R2W, Monroe County. Road cut and bluff exposures
above Kickapoo River east of town on Vernon County Road P, NE1/4, NW1/4 sec. 2,
T14N, R2W. Stenzel (1983), Dott et al. (1986).
33b Franklin: Wonewoc Sandstone through lower St. Lawrence Formation in road cuts
and shale pit along County Road C, Jackson County, Wisconsin. NE1/4 sec. 2, T20N,
R6W. Berg (1951, 1954).
33c Brush Creek: Wonewoc Sandstone through lower St. Lawrence Formation in road
cuts along Wisconsin Highway 23 between Ontario and Cashton, Monroe County,
Wisconsin. NW1/4, SE1/4 sec. 31, NW1/4, SE1/4 and NE1/4, SW1/4 sec. 36, SE1/4,
NW1/4 sec. 35, NW1/4 SE1/4 sec. 34, T15N, R2W and 3W. Berg (1951, 1954).
33d Westby: Upper Mt Simon through Wonewoc Sandstones from water well drilling
record for Westby City Well #5, Vernon County, Wisconsin. S1/2 sec. 28 or N1/2
sec. 33 T14N, R4W. (Roger Peters, Wisconsin Geological and Natural History
Survey oral communication).
34 Coon Valley: Road cuts and natural exposures in and around Coon Valley, Vernon
County, Wisconsin. Wonewoc Sandstone through lower St. Lawrence Formation in
cliff on northwest side of town on east side of State highway 162, NW1/4, NE1/4 sec.
7, T14N, R5W and in road cuts along US Highway 14/61, 2.4 km west of town,
NW1/4, NW1/4 sec. 12 and NE1/4, NE1/4 sec. 11, T14N, R6W. Berg (1951). St.
Lawrence Formation through lower Oneota Dolomite in road cut and quarry farther
west on US Highway 14/61, NW1/4, NE1/4 sec. 11, T14N, R6W. Odom and Ostrom
(1978).
35 Arcadia: Upper Lone Rock Formation through lower Jordan Sandstone in west-facing
road cut along Wisconsin Highway 93, 1.9 km south of its intersection with
Wisconsin Highway 95 in Arcadia, Trempealeau County, Wisconsin. SE1/4, NE1/4,
SE1/4 sec. 5, and upper Jordan Sandstone through lower Oneota Dolomite in east-
facing road cut about 8 km to south, W1/2 NW1/4 sec. 9, T20N, R9W. Hughes and
Hesselbo (1997), Ostrom (1987).
36a Dresbach: outcrops along Mississippi River between cities of Dresbach and Winona,
Winona County, Minnesota. Wonewoc Sandstone and lower Lone Rock Formation
SE1/4, SE/14, SE1/4 sec. 1, T106N, R 6W and SE1/4. NW/14, SW1/4 sec. 20,
T105N, R 4W. Runkel et al. (1998), Twenhofel et al. (1935).
36b LaCrescent: Outcrops and road cuts in and near city of LaCrescent, Houston
County, Minnesota. Wonewoc Sandstone and lower Lone Rock Formation along west
side of U.S. Highway 61, N1/2, SE1/4sec. 3, T104N, R 4W. Runkel et al. (1998),
Berg (1951). Jordan Sandstone and lower Oneota Dolomite on northwest side of
County Road 29, NE1/4, NE1/4, NE1/4 sec. 4, T104N, R4W and S1/2, SE1/4, SW1/4
sec. 33, T105N, R4W. Dott and Byers (1980). Gamma-ray unique numbers 227847
and 546911.
36c Brownsville: Upper Wonewoc Sandstone and Lower Lone Rock Formation in road
cuts along Minnesota Highway 26, Houston County, Minnesota, 2.7 to 4.3 km south
of Brownsville and at north edge of town. NW1/4, NW1/4, SW1/4 sec. 26 and E1/2
sec. 35, T103N, R4W, and E1/2 sec. 2, T102N, R4W. Berg (1951, 1954).
36d Victory: Upper Lone Rock and St. Lawrence Formations in ravine in bluff along the
east bank of the Mississippi River, Vernon County, Wisconsin. SW1/4, NE1/4 sec.
21, T12N, R7W. Twenhofel et al. (1935), Nelson (1956).
36e Hell Hollow: Upper Wonewoc Sandstone through lower St. Lawrence Formation
along tributary to Mississippi River about 2.1 km north of Reno, Houston County,
Minnesota. SE1/4 sec. 23, T102N, R4W. Berg (1951, 1954).
37 Homer: Outcrop along east side of County Road 15 about 3.2 km south of the town of
Homer, Winona County, Minnesota, NE1/4, NW1/4, NE1/4 sec. 2, T106N, R6W.
Runkel (1994b); Runkel et al. (1999).
38a B-1: Core, Fillmore County, Minnesota. SE1/4, NW1/4, SW1/4 sec. 25, T104N,
R9W. Mossler (1992), Runkel et al. (1998).
38b BO-1: Core, Fillmore County, Minnesota, NW1/4, SW1/4, SE1/4 sec. 22, T101N,
R8W. Mossler (1992), Runkel et al. (1998).Gamma-ray unique number 556316.
Runkel et al Table DR1 Compilation of fossil collections and identifications made during the course of this study. Locality names, numbers, and collection levels are tied to the same information shown on the stratigraphic columns in this data repository.
Locality name Strat. position Key taxa identified Zone Comments on stratigraphic position
3 OSCEOLA
stratigraphic position for samples below is distance in meters above (positive values) or below (negative values) contact between Jordan Sandstone and overlying Coon Valley Member, marked by breccia with silica-cemented sandstone clasts
Osceola 3.5Moderate fauna including Cordylodus angulatus, Acanthodus, Polycostatus oneotensis Rm
Osceola 2.8 Large fauna including Loxodus bransoni Rm
Osceola 1.8Aloxoconus, Cordylodus linstromi, Polycostatus oneotensis, Acanthodus, Cordylodus n. sp. Ca
Osceola 0.8Acanthodus uncinatus, Polycostatus n. sp., ?Utahconus n. sp., robust Teridontus sp. likely Ca
Osceola minus 12.5 Proconodontus muelleri Pmstratigraphic position for sample below is distance in meters above contact between Mazomonie Formation and overlying St Lawrence formation, marked by intraclastic conglomerate at top of water fall
Osceola 0.5 Proconodontus muelleri, Teridontus sp. Pm
10a STILLWATER (Boom Hollow)
stratigraphic position is distance in meters above base of Boom Hollow outcrop, as reported by Nelson (1949)
Stillwater 10.1 Prosaukia? sp., Briscoia ?, Dikelocephalus Ip?
10b LITTLE FALLS DAM (LFD)
stratigraphic position for samples below is distance in meters above, or below (negative value) prominent 3cm thic, iron- and brachiopod-rich coarse sandstone lag separating medium grained swaley cross-stratified sandstone from overlying fine to very fine grained hummocky cross-stratified sandstone and shale. Sandstone lag is about 7 m above base of outcrop (level of river)
LFD 6.3 ApLFD 5.4 Aphelaspis sp. ApLFD 2.5 Aphelaspis sp. ApLFD 1.5 Aphelaspis sp. Ap
LFD 0.2 through 0.3 Aphelaspis sp. Ap
LFD 0.15 through 0.2 Glaphyraspis sp. Ap ("crisis")
LFD 0 through 0.15
Lonchocephalus , Crepicephalus?, Densonella, Crepicephalus, another Crepicephalid (genus indet.) Cr
LFD minus 0.81 Lonchocephalus, Densonella? Cr
12 AFTONstratigraphic position for samples below is distance in meters above, or below (negative value) contact between Lone Rock Formation and overlying St Lawrence Formation, marked by an intraclastic conglomerate
Afton 10.2Proconodontus muelleri, P. serratus, Eoconodontus notchpeakensis E
Afton 8.7 Eoconodontus notchpeakensis E
Afton 4.5Proconodontus muelleri, Cambrooistodus cambricus, Eoconodontus notchpeakensis En
Afton 3Proconodontus muelleri, very primitive Eoconodontus notchpeakensis En
Afton 1.5Prooneotodus gallatini, P. rotundatus, Proconodontus muelleri Pm
Afton 0.6Proconodontus muelleri, Prooneotodus rotundus, Prooneotodus gallatini Pm
Afton minus 2.5
Croixana??, Illaenurus?, Tellerina leucosia , Saukiella pyrene, Rasettia sp., Dikelocephalus sp., three other species of uncertain identification Ip/Oo
13 BC-1 (and AC-1)Position of sample is depth below land surface in feet
AC-1 445' 8" 16 species (R. Ethington, written com.) typical of RmBC-1 541' 3" Eoconodontus notchpeakensis E
BC-1 544' 4"Eoconodontus notchpeakensis, Proconodontus muelleri E
BC-1 548' 10" Eoconodontus notchpeakensis EBC-1 551' 2' Eoconodontus notchpeakensis E
BC-1 554' 8"Eoconodontus notchpeakensis, Proconodontus muelleri E
BC-1 564' 10" Teridontus sp. possibly Pm
AC-1 660' 6"Ptychaspis cf. P. meniscaensis or P. striata, Dartonaspis Pr
AC-1 661' 2" Dartonaspis PrBC-1 650' 11" Idahoia, Monocheilus, Ptychaspsis Pt
AC-1 686' 8"Idahoia, Monocheilus, Ptychaspsis, Wilbernia pero (Walcott) Pt
AC-1 691' 0"Idahoia, Monocheilus, Ptychaspsis, Wilbernia pero (Walcott) Pt
BC-1 659' 11" Ptychaspis, Idahoia, Monocheilus PtBC-1 667' 0" Litagnostus parilis (Hall) PtBC-1 684' 6" cf. Taenicephalus CoBC-1 684' 9' cf. Taenicephalus CoAC-1 788' 3.5" Apsotreta DuAC-1 804' 10" Dytremacephalus DuBC-1 785' 3.5" Aphelaspis, Apsotreta? Ap/DuBC-1 794' 0" early Apsotreta ApBC-1 796' 4" Aphelaspsis ApAC-1 828' 7" Aphelaspsis ApBC-1 798' 6" Aphelaspsis ApAC-1 829' 8.5" Aphelaspsis ApBC-1 799' 0" Crepicephalus, Coosia, Dicellomus CrAC-1 830' 2.5" crepicephalid CrBC-1 822' 1.5" Komaspidella?, Dicellomus Cr
BC-1 832' 11.5"Dresbachia, Coosia?, Crepicephalus?, Komaspidella Cr
BC-1 833' 9" Dresbachia, Coosella? CrBC-1 836' 3.7" "Cedaria " CeBC-1 836' 7" "Cedaria " CeAC-1 869' 6.5" "Cedaria " CeBC-1 839' 6' "Cedaria " CeBC-1 844' 3" "Cedaria " Ce
14 RED WING (High School locale)
stratigraphic position for sample below is distance in meters above base of outcrop for bed of siliceous nodules that yield sampled trilobites
Red Wing 3Praepatokephalus sp., Symphysurina woosteri, Hystricurus sp. Sw
16 VAN OSER CREEK
Stratigraphic position for sample refers to upper 10.0 m of Jordan Sandstone. Based on descriptions of locale in Stauffer (1940) and subsequent MGS mapping in area
Van Oser Cr. Upper 10.0 m Includes Euptychaspsis kirki Sal (upper)
17 LON 65-1, LON 65-2
Position of sample is depth below land surface in feet
LON 65-1 423' 0" Eoconodontus notchpeakensis E
LON 65-1 441' 0" Proconodontus muelleri, Prooneotodus rotundatus PmLON 65-2 752' 9" Aphelaspis sp. Ap/DuLON 65-2 757' 9" Apsotreta ? Ap/DuLON 65-2 760' 2" Angulotreta? ApLON 65-2 764' 5" Aphelaspis sp. ApLON 65-2 768' 4" Aphelaspis sp. ApLON 65-2 772' 5" Cheilocephalus? CrLON 65-2 774' 8" Crepicephalus? sp. CrLON 65-2 775' 10" Crepicephalus? sp. CrLON 65-2 799' 8" "Cedaria ", norwoodiid CeLON 65-2 801' 3" "Cedaria " CeLON 65-2 810' 8" "Cedaria " Ce
18 JUDSON
North Mankato 1 through 2.0 Many species typical of Rm zone RmStratigraphic position for samples is distance in meters above the base of the "Blue Earth Siltstone" of the lowermost Oneota Dolomite
4.2 km east of Judsonstratigraphic position for two samples below is distance in meters above the highest of three small waterfalls in creek. Each falls is capped by hard, pink, intraclastic dolostone
JUDSON (4.2) 1 Fryxellodontus inornatus, Fryxellodontus n. sp. FiJUDSON (4.2) 0.8 Apoplanias cf. A. rejectus Mt
JUDSON (4.2) 0
Cordylodus proavus, Hirsutodontus hirsutus, new genus referred to in Utah as cf. Semiacontiodus , Teridontus nakamurai Hh
sample is from intraclastic dolostone capping second-highest of three small waterfalls in creek. Each falls is capped by hard, pink, intraclastic dolostone
JUDSON (4.2) 0Eoconodontus notchpeakensis, Cambrooistodus minutus, Cambrooistodus cambricus Cm
sample is from intraclastic dolostone capping lowest of three small waterfalls in creek.Each falls is capped by hard, pink, intraclastic dolostone
JUDSON (4.2) Eurekiid, likely Eurekia or Bayfieldia Ea? Samples found as float, precise strat position uncertain
2.3 km east of Judson
JUDSON (2.3) 0.6 Macronoda, Briscoia Sal (upper) stratigraphic position for sample is distance in meters above base of outcrop
Judson Bridge
JUDSON (Br) minus 2.5 Proconodontus muelleri, Teridontus sp. Pmstratigraphic position for sample is distance in meters below prominent, cliff-forming intraclastic conglomerate
19 Prehn-3 (and Will-4, Mel-1)
Position of sample is depth below land surface in feet
Prehn-3 368' 11""Fauna typical of Rm zone" (Ethington, written communication" Rm
Prehn-3 467' 7"
Eoconodontus notchpeakensis, Cordylodus proavus, Teridontus nakamurai, Semiacontiodus nogamii Ce
Prehn-3 468' 0"
Eoconodontus notchpeakensis, Cordylodus proavus, Teridontus nakamurai, Semiacontiodus nogamii Ce
Prehn-3 468' 4"- 468' 9"Cordylodus sp., Teridontus nakamurai , Semiacontiodus nogamii, Clavohamulus bulbousus Ce
Prehn-3 474' 3"Eoconodontus notchpeakensis, Cordylodus proavus, Teridontus nakamurai Cp
Prehn-3 474' 1"- 474' 8" Apoplanias rejectus MtPrehn-3 478' 0" Fryxellodontus inornatus lower FiPrehn-3 478' 1"-478' 10" Apoplanias rejectus MtPrehn-3 480' 8" Fryxellodontus inornatus Likely FiPrehn-3 483' 0" Cordylodus proavus, Hirsutodontus hirsutus HhPrehn-3 488' 0" Cordylodus proavus, Teridontus nakamurai Hh
Prehn-3 493' 3"Cordylodus andresi, Cordylodus proavus, Teridontus nakamurai Hh
Prehn-3 500' 0"Cambrooistodus minutus, Proconodontus muelleri, Eoconodontus notchpeakensis Cm
Prehn-3 503' 3"Cambrooistodus minutus, Eoconodontus notchpeakensis Cm
Prehn-3 506' 5"Cambrooistodus minutus, Eoconodontus notchpeakensis Cm
Prehn-3 515' 7"Eoconodontus notchpeakensis, Proconodontus muelleri En
Prehn-3 520' 10" Eoconodontus notchpeakensis En
Prehn-3 525' 2'Eoconodontus notchpeakensis, Proconodontus muelleri, cambrooistodus cambricus En
Prehn-3 529' 3"Eoconodontus notchpeakensis, Cambrooistodus cambricus En
Prehn-3 533' 5" Eoconodontus notchpeakensis EnPrehn-3 537' 4" Eoconodontus notchpeakensis En
Prehn-3 545' 4"very primitive Eoconodontus notchpeakensis, Palaeobotryellus taylori En
Prehn-3 549' 5" Proconodontus posterocostatus, Teridontus PpPrehn-3 575' 0" Proconodontus posterocostatus, Teridontus PpPrehn-3 587' 5" Proconodontus tenuiserratus Pt
Will-4 759' 2" Linnarssonella ElMel-1 830' 10" Aphelaspis Ap/DuMel-1 846' 3' Aphelaspis Ap/DuWill-4 838' 0" Aphelaspis ApWill-4 839' 10.5" Apsotreta ? ApMel-1 861' 6" Aphelaspis ApMel-1 866' 0" Coosia sp. CrWill-4 845' 4" Dicellomus and trilobite with wide doublures CrWill-4 853' 8" crepicephalid CrWill-4 865' 1" Crepicephalus CrMel-1 936' 6" Norwoodella CeMel-1 936' 10" menomoniid? Ce
20 H-1-APosition of sample is depth below land surface in feet
H-1-A 1005' 0"Eoconodontus notchpeakensis, Cambrooistodus cambricus, C. minutus Cm
H-1-A 1014' 0"Eoconodontus notchpeakensis, Proconodontus muelleri E
H-1-A 1026' 5"Eoconodontus notchpeakensis, Proconodontus muelleri, Prooneotodus E
H-1-A 1033' 0" Eoconodontus notchpeakensis EH-1-A 1047' 0" Teridontus Pm?H-1-A 1234' 11" Dytremacephalus, Apsotreta? DuH-1-A 1266' 11" Aphelaspis ApH-1-A 1267' 0" Aphelaspis ApH-1-A 1268' 0" Aphelaspis ApH-1-A 1274' 0" Aphelaspis Ap
H-1-A 1279' 8" lonchocephalid, Dicellomus?Cr (or "basal" Ap)
H-1-A 1279' 10" lonchocephalidCr (or "basal" Ap)
H-1-A 1283' 0" Coosella?, Dicellomus CrH-1-A 1288' 8" Crepicephalus, Coosia? CrH-1-A 1401' 6" crepicephalid CrH-1-A 1443' 0" norwoodiid CeH-1-A 1458' 1"-3" norwoodiid Ce
21 SCH-1 (and King-1, WL-4, Badge)
Position of sample is depth below land surface in feet
Sch-1 537' 7" Loxodus bransoni, Aloxoconus propinquus Rm
Sch-1 586' 10.5"-587' 4.5" Utahconus sp., Acanthodus sp."probably" Ch/Hs
Sch-1 587' 9"-588' 1.5" Monocostodus sevierensis, Utahconus utahensis Ch/HsSch-1 588' 2"-588' 5" Monocostodus sevierensis Ch/Hs
Sch-1 634' 6"-634' 8" Monocostodus sevierensis, Utahconus utahensis Hs
Sch-1 635' 3"-635' 9" Monocostodus sevierensis, Utahconus utahensis Hs
Sch-1 646' 0"Monocostodus sevierensis, Utahconus utahensis, Hirsutodontus simplex Hs
Sch-1 650' 0"
Cordylodus proavus, C. intermedius, Monocostodus sevierensis, Utahconus utahensis,Semiacontiodus nogamii Hs
Sch-1 652' 10"-653' 5"
Hirsutodontus simplex, Monocostodus sevierensis, Utahconus utahensis, Semiacontiodus lavadamensis Hs
Sch-1 658' 9"-659' 3"Hirsutodontus simplex, Monocostodus sevierensis, Utahconus utahensis Hs
Sch-1 662' 0"-662' 5"Cordylodus proavus, Cordylodus hastatus, Hirsutodontus hirsutus Ce
Sch-1 666'0"-666' 5"Cordylodus proavus, Cordylodus hastatus, Semiacontiodus nogamii, Teridontus nakamurai Ce
Sch-1 672' 5"-672' 3" Cordylodus hastatus, Semiacontiodus nogamii Ce
Sch-1 678' 5"-678' 11" Clavohamulus elongatus, Fryxellodontus n. sp. Ce
Sch-1 684' 2.5"-684' 7"Fryxellodontus inornatus, Cordylodus proavus, Teridontus nakamurai Fi
Sch-1 688' 0" Fryxellodontus inornatus Fi
Sch-1 690' 0"-690' 5"Cordylodus andresi, Hirsutodontus hirsutus, Teridontus nakamurai Hh
Sch-1 693' 3"-693' 8"Proconodontus muelleri, Eoconodontus notchpeakensis, Cambrooistodus minutus Cm
Sch-1 696' 0" Eoconodontus notchpeakensis, Cambrooistodus minutus Cm
Sch-1 703' 11"-704' 1" Eoconodontus notchpeakensis, Cambrooistodus minutus Cm
Sch-1 708' 1"-708' 5"Proconodontus muelleri, P. serratus, Eoconodontus notchpeakensis En
Sch-1 717' 6"-718' 0"Proconodontus muelleri, Eoconodontus notchpeakensis En
Sch-1 724' 6"-724' 10" Proconodontus muelleri, Teridontus sp. PmSch-1 731' 9"-732' 0" Teridontus sp. PtSch-1 734' 9"-735' 9" Teridontus sp. PtSch-1 742' 2"-742' 5" Teridontus sp. Pt
King-1 765' 4" Illaenurus and small saukiid Ip
Sch-1 814' 8" Dartonaspis or IrvingellaPt/Pr (favors Pr)
Wl-4 856' 0" Idahoia sp., Ellipsocephaloides n. sp. Pt/Pr (favors Pr)
Wl-4 973' 5" Aphelaspis sp. Ap/DuWl-4 980' 5" Aphelaspis sp. ApWl-4 982'0" Aphelaspis sp. ApWl-4 982' 11.5" Aphelaspis sp. ApWl-4 1084' 7" Crepicephalus CrWl-4 1114' 9.5" menomoniid CrWl-4 1126' 1" Blountia CrWl-4 1128' 11" crepicephalid CrBadge 1328' 5" Norwoodella CeBadge 1330' 0" Kormagnostus Ce
22 PETERSONPosition of sample is depth below land surface in feet
Peterson 1593' 5" juveniles? of Utahconus sp., Acanthodus sp. ? Cl or ?Ia
Peterson 1621' 4"
Cordylodus linstromi, Utahconus n. sp. , Paltodus n. sp., Acanthodus uncinatus, Aloxoconus n. sp., Teridontus n. sp.(robust) upper Cl or Ia
Peterson 1631' 6"
Hirsutodontus simplex, Utahconus utahenis, Monocostodus sevierensis, Semiacontiodus nogamii, Acanthodus n. sp., ?Rossodus tenuis Ci (likely Ch)
Peterson 1642' 0"Hirsutodontus simplex, Utahconus utahenis, Cordylodus sp. Ci
Peterson 1675' 4" to 1675' 8"Teridontus nakamurai, Eoconodontus notchpeakensis, Cordylodus proavus Hh
Peterson 1682' 6" to 1683' 0" fauna from top of Millardan Series EPeterson 1793' 0" Ptychaspsis ?? Pt??Peterson 1842' 0" Linnarssonella ElPeterson 1959' 0" Aphelaspis, Apsotreta Ap
23 QUIMBYPosition of sample is depth below land surface in feet
Quimby 1312' 6"Teridontus sp., Utahconus n. sp., Acanthodus sp., Aloxoconus iowensis, Polycostatus sp. Ia/ Ca/Rm
Quimby 1322' 5" Cordylodus sp., Teridontus nakamurai Ce
Quimby 1326' 5"Cordylodus sp., Teridontus nakamurai, Semiacontiodus nogamii, Clavohamulus elongatus Ce
Quimby 1330' 0" Clavohamulus elongatus Ce
Quimby 1335' 0"Cordylodus sp., Teridontus nakamurai, Semiacontiodus nogamii, ?Utahconus utahenis Ce
Quimby 1336' 0"
Eoconodontus notchpeakensis, Cordylodus hastatus, Cordylodus proavus, Teridontus nakamurai, Semiacontiodus nogamii, Clavohamulus elongatus Ce
Quimby 1346' 9"Teridontus nakamurai, Clavohamulus elongatus, Clavohamulus bulbousus Ce
Quimby 1363' 0"
Eoconodontus notchpeakensis, Teridontus nakamurai, Clavohamulus elongatus, Clavohamulus bulbousus Ce
Quimby 1372' 8.5" Teridontus nakamurai Cp
Quimby 1392' 7"Cordylodus proavus, Teridontus nakamurai, Hirsutodontus hirsutus Cp (likely Hh)
Quimby 1402' 6.6" Proconodontus posterocostatus PpQuimby 1507' 6.5" Taenicephalus CoQuimby 1541' 9" Housia ElQuimby ~1558' 8" Apsotreta, Dunderbergia? DuQuimby 1564' 7" Prehousia? ApQuimby 1565' 1" Aphelaspis, Apsotreta ApQuimby 1621' 5" norwoodiid Ce
24 CAMP QUESTPosition of sample is depth below land surface in feet
Camp Quest 941.3 to 941.4 Apsotreta ? Ap/Du
25 R20-2002-01Position of sample is depth below land surface in feet
R20-2002-01 706' 0" Dikelocephalus cf D. minnesotensis (Owen) IpR20-2002-02 725' 0" dikelocephalid IpR20-2002-03 741' 0" Wilbernia cf. W. Pero (Walcott) CoR20-2002-04 742' 0" Wilbernia sp. CoR20-2002-05 822' 0" Aphelaspis Ap
27c MADISON
Precise stratigraphic position is uncertain. The stratigraphically highest of five samples collected from the type section of the Sunset Point Member of the Jordan Sandstone
MADISON Upper Sunset Pt. Mbr Eoconodontus notchpeakensis E
28a BLACK EARTH (BE)stratigraphic position is distance in meters above (positive values) or below (negative values) base of strombolite bed in lowermost St Lawrence Fm.
BE 0.3 Proconodontus posterocostatus PpBE minus 0.1 Proconodontus posterocostatus Pp
28b MAZOMONIEstratigraphic position is distance in meters above (positive values) or below (negative values) contact between St Lawrence Fm. and overlying white sandstone of Coon Valley Member
Mazomonie 3 Teridontus nakamurai "Ibexian"Mazomonie minus 0.1 Eoconodontus notchpeakensis EnMazomonie minus 9.8 Proconodontus muelleri, Prooneotodus sp. En
Mazomonie minus 12.0Proconodontus muelleri, Eoconodontus notchpeakensis En
34 COON VALLEY
stratigraphic position is distance in meters above (positive values) or below (negative values) contact between Jordan Sandstone and overlying Coon Valley Member (marked by intraclastic sandstone with pebbles of vein quartz)
Coon Valley 2.4 Teridontus sp., Acanthodus uncinatuslikely Ca or Rm
Coon Valley 0.9Proconodontus muelleri, Teridontus nakamurai, Eoconodontus notchpeakensis mixed E+Ca
Coon Valley minus 13 Eoconodontus notchpeakensis En
35 ARCADIA
Arcadia see note on positionEoconodontus notchpeakensis, Proconodontus muelleri E from lowest sandy carbonate bed in east-facing road cut
stratigraphic position for samples below is distance in meters above contact between Lone Rock Formation and overlying St Lawrence Formation, marked by an intraclastic conglomerate near the base of the outcrop
Arcadia 16.7Eoconodontus notchpeakensis, possible Proconodontus muelleri E
Arcadia 15.2Eoconodontus notchpeakensis, Proconodontus muelleri E
Arcadia 13.3Eoconodontus notchpeakensis, Proconodontus muelleri E
Arcadia 12.2Eoconodontus notchpeakensis, Proconodontus muelleri, Prooneotodus E
Arcadia 8.7Eoconodontus notchpeakensis, Proconodontus muelleri E
Arcadia 6.6 Proconodontus muelleri Pm
Arcadia 3.8Proconodontus muelleri or Eoconodontus notchpeakensis , and Prooneotodus Pm
Arcadia 1.3 Proconodontus muelleri, Prooneotodus Pm (lower)
Arcadia 0.1Proconodontus muelleri, Prooneotodus, Proconodontus posterocostatus, Teridontus sp. Pt
37 HOMERstratigraphic position is distance in meters above (positive values) or below (negative values) base of Jordan Sandstone
HOMER 30.8
Oneotodus simplex, Teridontus gracilis, Cordylodus intermedius, Aloxoconus sp., Aloxoconus propinquus Ca
HOMER 29Oneotodus simplex, ?Aloxoconus sp., Acanthodus uncinatus? "likely" Ca
HOMER 28 Eoconodontus notchpeakensis E
HOMER 27.6Eoconodontus notchpeakensis, Proconodontus muelleri E
HOMER 24.6 Eoconodontus notchpeakensis E
HOMER 22.8Eoconodontus notchpeakensis, Proconodontus muelleri E
HOMER 21.83 Eoconodontus notchpeakensis E
HOMER 16.4Eoconodontus notchpeakensis, Proconodontus muelleri E
HOMER 15.5 Eoconodontus notchpeakensis E
HOMER 14.3Eoconodontus notchpeakensis, Proconodontus muelleri E
HOMER 7.3Eoconodontus notchpeakensis, Proconodontus muelleri E
HOMER 4.1 Eoconodontus notchpeakensis E
HOMER minus 5.7Eoconodontus notchpeakensis, Proconodontus muelleri, Prooneotodus rotundatus E
38 BO-1 (and B-1)Position of sample is depth below land surface in feet
BO-1 310' 6" Teridontus nakamurai , Acanthodus uncinatusupper Cl through Rm
BO-1 320' 0"Teridontus nakamurai, Cordylodus proavus, Hirsutodontus hirsutus Hh
BO-1 390' 10" Eoconodontus notchpeakensis EBO-1 408' 0" Proconodontus muelleri EBO-1 434' 6" Eoconodontus notchpeakensis EBO-1 443' 0" Eoconodontus notchpeakensis EBO-1 450' 0" Eoconodontus notchpeakensis EBO-1 459' 6" Cambrooistodus cambricus E
BO-1 467' 0"Eoconodontus notchpeakensis, Proconodontus muelleri E
BO-1 472' 6"Eoconodontus notchpeakensis, Proconodontus muelleri E
BO-1 485' 6" Proconodontus muelleri PmBO-1 499' 0" Proconodontus muelleri Pm
BO-1 504' 6" Proconodontus muelleri, Teridontus nakamurai Pm
BO-1 509' 0" Proconodontus posterocostatus, Teridontus sp. PpBO-1 517' 10" Clelandia sp. IpBO-1 518' 3" Prosaukia or Saukiella IpBO-1 520 6" cf. Symphysurina or cf. Illaenurus Ip
BO-1 571' 6"
Chariocephalus whitfield (Hall), Prosaukia sp., Pseudagnostus josepha (Hall), Litagnostus ? sp., Illaenurus sp. , Ellipsocephaloides sp., Idiomesus? sp. Pr
BO-1 609' 6"Litagnostus sp., Pseudagnostus sp., Monocheilus, sp. Pt
BO-1 615' 1" Monocheilus sp. PtB-1 230' 3" Aphelaspis sp. ApB-1 230' 5" Aphelaspis? sp. ApB-1 234' 4" Aphelaspis sp. ApB-1 234' 6" Aphelaspis sp. ApB-1 239' 6" Aphelaspis? sp. Ap
B-1 249' 10" Aphelaspis sp. ApBO-1 785' 9" Crepicephalus sp. CrB-1 303' 0" Terranovella? sp. CrB-1 338' 7" Crepicephalus, menomoniid CrB-1 375' 2" "Cedaria" CeB-1 393' 0" "Cedaria" CeB-1 395' 2.5" "Cedaria" Ce
Runkel et al. Data Repository information
REFERENCES
Aswasereelert, W., 2005, Facies distribution and stacking of the Eau Claire Formation,
Wisconsin: Implications of thin shale-rich strata in fluid flow [M.S. thesis]: University of
Wisconsin, Madison, USA, 200p.
Berg, R.R., 1951, The Franconia Formation of Minnesota and Wisconsin [Ph.D. thesis]:
Minneapolis, University of Minnesota, 176 p.
Berg, R.R., 1954, Franconia Formation of Minnesota and Wisconsin: Geological Society
of America Bulletin, v. 65, p. 857-882.
Berg, R. R., Nelson, C. A., and Bell, W. C., 1956, Upper Cambrian rocks in southeast
Minnesota in Sloan, R., and Schwartz, G.M., eds., Lower Paleozoic Geology of the
Upper Mississippi Valley, Geological Society of America Guidebook Series Field
Trip no. 2, p. 1-23.
Berkey, C.P., 1897, Geology of the St. Croix Dalles: American Geologist, v. 20, p. 345-
383.
Byers, C.W., and Dott, R.H., Jr., 1995, Sedimentology and depositional sequences of the
Jordan Formation (Upper Cambrian), northern Mississippi Valley: Journal of
Sedimentary Research, v. B65, p. 289-305.
Dott, R.H., Jr, and Byers, C.W., 1980, SEPM research conference on modern shelf and
ancient cratonic sedimentation-the orthoquartzite-carbonate suite revisited: Society
of Economic Paleontologists and Mineralogists Research Conference Field Trip
Guidebook no. 1, 61 p.
Dott, R. H., Jr., Byers, C.W.; Fielder, G.W.; Stenzel, S.R. and Winfree, K.E., 1986,
Aeolian to Marine Transition in Cambro-Ordovician Cratonic Sheet Sandstones of
the Northern Mississippi Valley, U.S.A., Sedimentology, vol. 33, p.345-367.
Grant, R.E., 1962, Trilobite distribution, upper Franconia Formation (Upper Cambrian),
southeastern Minnesota: Journal of Paleontology, v. 36, no. 5, p. 965-998.
Hughes, N.C., 1993, Distribution, taphonomy, and functional morphology of the Upper
Cambrian trilobite Dikelocephalus: Milwaukee Public Museum Contributions in
Biology and Geology, no. 84, 49p.
Hughes, N C., and Hesselbo, S.P., 1997, Stratigraphy and sedimentology of the St.
Lawrence Formation, Upper Cambrian of the northern Mississippi Valley:
Milwaukee Public Museum Contributions in Biology and Geology, no. 91, 50 p.
McCormick, Kelli A., 2005, Drilling of an aeromagnetic anomaly in southeastern South
Dakota: Results from analysis of Paleozoic and Precambrian core: South Dakota
Report of Investigations 116, 19 p.
Mossler, J.H., 1992, Sedimentary rocks of Dresbachian age (Late Cambrian), Hollandale
Embayment, southeastern Minnesota: Minnesota Geological Survey Report of
Investigations 40, 71 p.
Mossler, J.H., 2001, Geologic Atlas of Wabasha County, Minnesota: Minnesota
Geological Survey County Atlas Series C-14, 7 plates.
Nelson, C.A., 1949, Cambrian stratigraphy of the St. Croix Valley [Ph.D. thesis]:
University of Minnesota, Minneapolis, 216 p.
Nelson, C.A., 1956, Upper Croixan stratigraphy: Geological Society of America
Bulletin, v. 67, p.165-184.
Odom I. E., 1978, Lithostratigraphy, petrology, and sedimentology of Late Cambrian—
Early Ordovician rocks near Madison, Wisconsin: Wisconsin Geological and
Natural History Survey Field Trip Guidebook 3, 142p.
Odom, I.E., and Ostrom, M.E., 1978, Lithostratigraphy, petrology, sedimentology, and
depositional environments of the Jordan Formation near Madison, Wisconsin:
Wisconsin Geological and Natural History Survey Field Trip Guidebook 3, p. 23-
45.
Ostrom, M.E., 1987, St. Lawrence and Jordan formations (Upper Cambrian) south of
Arcadia, Wisconsin, in Biggs, D.L., ed., North-Central Section of the Geological
Society of America Centennial Field Guide, v. 3, p.191-194.
Parsons, B.P, and Clark, D.L., 1999, Conodonts and the Cambrian-Ordovician boundary in
Wisconsin: Wisconsin Geological and Natural History Survey Geoscience Wisconsin, v.
17, 10 p.
Raasch, G.O., 1939, Cambrian Merostomata: Geological Society of American Special
Paper 19, 146 p. 21 plates.
Runkel , A.C., 1994a, Deposition of the uppermost Cambrian (Croixan) Jordan
Sandstone, and the nature of the Cambrian–Ordovician boundary in the Upper
Mississippi Valley. Geological Society of America Bulletin v. 106, p. 492–506.
Runkel, A. C., 1994b, Revisions to the stratigraphic nomenclature of the Jordan
Sandstone, Upper Mississippi Valley region: Shorter contributions to the
Minnesota Geological Survey Report of Investigations 43, p. 60-71.
Runkel, A.C., McKay, R.M. and Palmer, A.R., 1998, Origin of a classic cratonic sheet
sandstone: Stratigraphy across the Sauk II—m Sauk III boundary in the Upper
Mississippi Valley: Geological Society of America Bulletin, v. 110, p. 188-210.
Runkel, A.C., Miller, J.F., McKay, R.M., Shaw, T.H., and Basset, D.J., 1999, Cambrian-
Ordovician boundary strata in the central midcontinent of North America: Acta
Universitatis Carolinae-Geologica, v. 43, p. 17-20.
Stauffer, C.R., 1940, Fauna of the Van Oser beds: Journal of Paleontology, v. 14, no.1, p. 54-56.
Stauffer C. R., and Thiel, G. A, 1941, The Paleozoic and related rocks of southeastern Minnesota:
Minnesota Geological Survey Bulletin 29, 261p.
Stenzel, S.R., 1983, Stratigraphy and sedimentology of the Upper Cambrian Wonewoc
Formation in the Baraboo and Kickapoo River Valleys, Wisconsin [M.S. thesis]: Madison,
University of Wisconsin, 235 p.
Twenhofel, W.H., Raasch, G.O., and Thwaites, F.T., 1935, Cambrian strata of Wisconsin:
Geological Society of America Bulletin, v. 46, p. 1687-1744.
5 2 134789 101112131416 171819212223
A"A'
A' A2425
3638
20 15 6
471460
21
78
98
67
67
65
5164
04
5561
49
475354
6982
28
1220
50
6172
454487
08
4714
60
70
80
84
22
56
47
67
81
36
51
17
35
67
99
53
49
32
49
64
56
23
45
32
39
21
94
83
5090
56
6435
05
25
59
1321
3504
22
44
26
2355
26
2136
782136
77
2131
06
2136
79
2136
81
2136
83
2136
80
2136
82
2129
66
2129
70
2299
53
2129
69
2129
61
2299
52
2129
72
2299
542129
76
2129
78
2129
81
2129
82
2129
97
2136
51
1174
9*
2549
8*
R-20
-2002
-01*
12
72
58
67
89
99
68
94
26
54
27
82
60
50
73
11
04
96
53
63
12
54
27
79
23
18
51
2230
82
22
78
47
& 5
46
91
1
55
63
16
2140
34
2211
14
2211
26
2211
51
2211
39
2211
46
2211
44
2211
38
2210
97
2317
21
2317
24
2317
31
2211
40
2317
28
2317
29
2317
08
2246
72
2317
04
2317
12
2317
06
2210
90
2317
22
100 FT
50
07
94
60
30
82
6802
71
55
61
35
1097
14
5542
29
4010
75
6632
00
4463
19
5593
46
5053
5220
8791
44
72
05
1858
10
20
83
28
23
30
89
24
19
41
23
61
53
25
59
45
49
67
85
2559
65
100 FT
S ub-Oneota sequence boundary
Lower S t Lawrence MF I
Lower Lone R ock/Davis MF I
T op Wonewoc F looding
T op Mt S imon F looding
S ub-Oneota sequence boundary
S ub-Oneota sequence boundary
Lower S t Lawrence MF I
Lower S t Lawrence MF I
Lower Lone R ock/Davis MF I
Lower Lone R ock/Davis MF I
T op Wonewoc F looding
T op Wonewoc F looding
T op Mt S imon F looding
T op Mt S imon F looding
Runkel et al. Figure DR2 Natural gamma-ray logs used for construction of cross-sections in Figures 6 and 7. Borehole construction specifications are available in the County Well Index (CWI) maintained by the Minnesota Geological Survey. A-A’ and A”-A’ refer to lines of section shown in Figures 1, 6, and 7. Large type size numbers 1 through 36 refer to control point numbers on cross sections in Figures 6 and 7. MFI=Maximum Flooding Interval.