S SAI-2 02 l - Ontario
Transcript of S SAI-2 02 l - Ontario
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41N15NW0I3I 0011B1 NAVEAU 010
C. W. ADCM)BALD
MOV O y
UNOS SECT/ON
GEOLOGICAL REPORT
CANABEC EXPLORATIONS LIMITED
ON
RABAZO AND NAVEAU TOWNSHIPS, ONTARIO
i,- ^LbUlM, :
,j l J j [j j
by
J. C. Archibald, B.Se.
M"JES
ASSESSMENT
S SAI-2 02 l
',. 41N15NW0131 80118! NAVEAU 010C'
TABLE OF CONTENTS
Page
Summary l
Property 3
Access and Topography 3
Geology 4
Economic Geology 7
Conclusions 8
Recommendations 9
Selected Rcierences 11
APPENDIX
Location Map - Scale l" ** *t mile_ plate I
Geological Compilation Map - Scale l" ** 200 fee pifita 2
Sampling Plan - Plat* 3
t~1 IIo 3
O . "3 C. W.
GEOLOGICAL REPORT CANABEC EXPLORATIONS LIMITED
RABAZO AND NAVEAU TOWNSHIPS, ONTARIO
NUMMARY
The property consists of twenty-five contiguous
unpatented mining claims bordering on Rabazo and Naveau Town
ships, in the District of Algoma, Ontario.
These claims cover several known gold occurrences
located southeast of the Townsite of Wawa, Ontario. Wawa has
a well documented history as a gold camp, having at least a
dozen or more past producing gold occurrences within the area.
One such producer, known as the Norwalk Mine, is located on
this property.
I feel that the previous work on this property stopped
short and dicJ not indicate the true potential of the mineral
ization as seen in the surface exposures over the whole of the
property. Some of these mineralized occurrences were resampled
and the resultant assays indicated good values in gold in
competent geological rock units.
Several showings had very little previous work, some
of which included surface trenching, pitting and minor adit
drifting done prior to 1940. The only evidence of drilling work
was noted a few hundred feet southwest of the Norwalk shaft,
paralleling several major quartz vein occurrences. The assess
ment records indicate that some 1,500 feet of diamond drilling
had been carried out prior to 1963 with some assays in gold.
ifer,V/:''fjC??' f .'''.,c. w. ARCHIBALD
In all, eighteen claims were surveyed at 200 foot
line intervals. The results of this survey indicated a
noticeable pattern to the mineralized showings which sub-
paralleled the general strike of the geological units.
(See Map) .
From these results and the anomalous trends pro
duced by the geophysical surveys, there are several areas
outlined which may hold significant gold and base metal
potential. These would have to be tested further by diamond
drilling as most of the surface expressions are poorly exposed
or covered by overburden.
"'
J C. W. ARCHIBALD
PROP.ERTY
The property consists of twenty-five contiguous
mining claims in the District of Algoma, Ontario. The claims
are numbered as follows:
SSM 497993, 466678, 502010 to 502013 inclusive,SSM 521218 to 521225 inclusiveSSM 467838 and 467839SSM 467867 to 467872 inclusive, in Rabazo Township.
SSM 466676 and 466677 in Naveau Township.
Twenty claims are located along the northeast side
of Rabazo Township (M. 1556) and five are within Naveau Town
ship (M. 1546) with the Township line as a common border.
ACCESS^ and TOPOGRAPH.Y
The property is located in the District of Algoma
approximately six miles south of Wawa, Ontario, just off the
Trans-Canada Highway 17. Wawa lies approximately 140 miles
north of Sault Ste. Marie and can be reached by daily air
service or automobile.
The property is bisected by an all-weather access road
which connects the High Palls Dam project with the Trans-Canada
Highway 17. It is approximately three miles east of this High
way and covers about 1,000 acres of ground.
The twenty-five contiguous claims are more than half
covered by glacial-fluvial overburden. The relief is generally
low and the ground swampy to the oast but it is cut extensively
* C W. ARCHIBALD
by ravines and drainage channels along the western boundary.
This ground occupies part of the old Michipicotan River basin
and erosion has cut ravines to depths in excess of one-hundred
feet in many places.
Outcrops cover approximately fifty percent of the
property and rise steeply in a northeast to southwest direction.
Two high-voltage transmission lines cross the property
in a northwest to southeasterly direction. The major power line
carries some 250,000 volts and cuts through the noi thorn boundary
of this claim group. The other set of lines carry power locally
from the High Falls Dam to the Wawa Townsite.
GEOLOGY
The area around Wawa consists of a series of inter
mediate to basic volcanic flows interbedded with metasediments
and intruded by later granitic, alkalic and ultramafic rock types,
The Wawa area is well known for its high mineral pot
ential having many well documented occurrences of gold and base
metals such as copper, lead, zinc, molybdenite and nickel. Most
noteworthy are the vast strataform deposits of siderite and
hematite iron formations owned by Algoma Steel.
The property is underlain by undifferentiated mafic
to felsic metavolcanics and supposedly Archean roetasedinents.
3 C. W. ARCHIBALD
The O.D.M. Preliminary Geological Map (P. 640) indicates the
presence of several major units in contact within the boundary
of the property.
The major rock units encountered include intermediate
to basic volcanics grading from andesite to dacite in composition
and acid volcanics which graded from a trachyte to an inter
mediate trachy-andesite and often varied in composition and
colour within a few feet. Intruded into these units were
assemblages of gabbros, quartz diorites, quartz porphyry and
a feldspar porphyritic syenite to granite.
The sedimentary units depicted on the O.D.M. Sheet
(P. 640) appeared as porphyritic quartzites, quartz arenites
or biotite rich gneisses. These units often occurred inter
calated with the metavolcanic and intrusive units and were
very difficult to distinguish clearly due to the degree of
local metamorphism and subtle gradational changes. Very little
sedimentary structure was evident.
The general strike of the units was northwest to
southeast with a strong lineation determined by the flow struc
tures, pyroclastic fragments and alteration within the indiv
idual rock units.
The metavolcanic units occupy most of the western
portion of the property with increasing ultramafic content
occuring closer to the major contact with the coarse grained
w . C. W. ARCHIBALD
granitic syenite intrusion along the eastern border of the
property. Localized lenses of gabbro, hornblende amphibolite
and quartz-eye porphyry were observed east of the High Falls
road. Later intrusions of diabase and quartz veins and
stringers are also evident. Much of the quartz consists of
a massive, milky-white to clear variety.
The gold mineralization occurs within, or in contact
with, many of these quartz stringers or vein occurrences,
especially where pyrite is the mineralization associated with
the quartz. Often the pyrite is weathered and rusty and may
account for some localized enrichment of the gold values.
Several linear massive sulphide occurrences were also
observed. These follow the trend of the geological units and
appear to be associated with basic metavolcanic and ultramafic
rock types. The major accessory minerals were pyrrhotite,
pyrite and minor chalcopyrite, graphite and quartz. Sampling
at several locations indicated some values in gold which lends
strength to the similar geological association found at the
Centennial Gold Mine, just a half-mile to the east.
Several good targets have been defined through geo
logical extrapolation and geophysical anomalies. These will
be tested by diamond drilling to verify any mineralization
at depth.
e^tf&X*'-'-;'. "•w?'-?. . ' : v - ' :. - ... ' . : ••.~^K-"-": *:..i'---. - , - - . '. , :-v.'..Pt i v . 7 C, W. ARCHIBALD
ECONOMIC GEOLOGY
Located within the boundary of this property are
several old shaft? and adits that were part of the original
discoveries in the Wawa Area. These include the Norwalk Mine,
a past producer, the Fred C. Shaft, the Stenbaugh Showing and
several other minor gold occurrences. Very few records of the
past work, production or underground development exist.
References indicated that some gold production was
obtained from a small mill located at the site of the Norwalk
Shaft but no details as to ore grade, tonnage or underground
geology are available. This work was carried out during the
1920's and early 1930's with very little work done since thatO
time. Inspection of the mine site and waste dump indicated
a very small operation. The country rock at the dump consisted
of a green siliceous to sericitized schist fractured and cut
by quartz and calcite vein networks. The shaft was sunk on a
five foot wide splash of rusty quartz cutting a massive quartz
porphyry.
The other showings that were examined on the property
hewed a similarity in geological structure. Most occurred on
or near a zone of shearing or fracturing where quartz and rusty
pyrite mineralization appeared to intrude into zones of struct
ural weakness. These fractures often cut the existing geological
units at some concordant angle but the fr ,jency of these vein
networks appear to be linked to both the structural and geological
trends in the area.
-- - - , .
l^'v"- '. :~' ' - ' . C. W. ARCHIBALD'. .W - CONCLUSIONS -----~------
v - . The Wawa area has had a long history as a high pot
ential mineral producer, especially in gold. The accompanying-'
location map shows the spr^ial relationship between this oroperty
to the past producing depoaits and their geological significance.
The latest work in the area by the Ontario Department
of Mines included correlation of all the available geological
data and recent reconnaissance napping. The results were pub
lished in 1971 with the printing of a new geological map numbered
P. 640, which indicated a different geological picture to the
previous compilation by Goodwin in 1963.
A In view of the new geological relationship and the9
spatial relationship between felsic, acid metavolcanics and their
proximity to granitic and carbonatite intrusive bodies, the
mineralogical and orogenesis takes on a new perspective.
The occurrences of gold in the area has a definite
relationship to certain rock units which includes both the felsic
metavolcanics and intrusive units found on the property. The vein
occurrences vary from less than an inch to several feet in width
and are often discontinuous in sise and length. Several showings
occur close to widenings or splashes in the quartz. These veins
appear to cut the existing units often at varying angles. Some
traverse local faulting and fracturing but do tend to widen at
these junctures, lending weight to the idea that they were con
temporaneous to structural activity.
C. W. ARCHIBALD' 'RECOMMENDATIONS~~" ~ ------
The geological survey included mapping of all the
existing outcrops, trenches, pits and topography. Samples
were taken at all mineralized locations and an effort was
made to determine the extent and directions of the mineral
ization with respect to the old gold showings and new occur-
rjnces.
At this close interval, the detailed geological
compilation gave enough information to determine a general
pattern to the geological units as to strike, dip and structure,
and to what rock units the gold mineralization was most closely
associated. It also revealed the relationship of the gold to
accessory mineralization such as pyrite, which in turn provides
a useful exploration tool for sampling and mapping.
.Toronto, Ontario ' ' August 31, 1979 (;/a. C . Archibald, B.Se.
C. W. ARCHIBALDg*'-:- Tffi*
Selected References————————————————
Ferguson, S.A., Groen, H.A., Haynes, R., Gold Deposits of Ontario, Mineral Resources Circular #13, Ministry of Natural Resources, 1973.
Leahy, E. J., Rupert, R. J., Giblin, P. E., Giguere, J. F., "Wawa Sheet" (P. 640) Geological Compilation Series, O.D.M., 1971.
Rupert, R. J., "McMurray Township" (P. 828), Preliminary Geological Series, O.D.M., l" - h mile, 1975.
IrPLATE
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