)U nrio: :T - USGS · 2011. 6. 14. · )U nrio::T GENERALIZED SECTION FOR MASONTOWN-UNIONTOWN...
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)U nrio: :T GENERALIZED SECTION FOR MASONTOWN-UNIONTOWN QUADRANGLES. SCALE: 1 INCH 200 FEET. PERIOD. CO D O QC LJ LL Z O m oc < o 0. CL tn CO o HI Q FORMATION NAME. Dunkard formation. Monongahela formation. Conemaugh formation. Allegheny formation. Pottsville sandstone. Mauoh Chunk shale. (Greenbrier limestone lentil.) Pooono sandstone. Catskill formation. SYMBOL. COLUMNAR SECTION. 400+ Ccm 590± Cpv 270± 180= Cmc (Cgr) Cpo Dck 300+ 400+ NAMES OP MEMBERS. Upper Washington limestone. Washington coal. Waynesburg " A " coal. Waynesburg sand- stone._________ Waynesburg coal. Uniontown coal. Great limestone. Sewickley coal. Redstone coal. Pittsburg sandstone. Pittsburg coal.____ Connellsville sand- stone. Morgantown sand- stone. Saltsburg sandstone. Hager coal. Farmington coal. Mahoning sandstone. Upper Freeport coal. Bolivar fire clay. Lower Freeport coal. Kittanning group. [coal. Brook ville-Glarion Home wood sandstone. Mercer coal. Connoquenessing sand- stone.__________ Greenbrier limestone. Siliceous limestone. CHARACTER AND DISTRIBUTION OF MEMBERS. Blue to black limestone, weathering white. Best development in areas lying west of this territory. It has been identified in Cumberland Township, Greene County, but not in Lambert syncline. Thick bed, but usually too badly broken by partings to be of value. Present in Lambert syncline and in the high land west of Monongahela River. Thin bed, generally of good quality. Coarse sandstone. Poorly developed in Lambert syncline and in north- ern part of Uniontown syncline. Generally present throughout this territory, but west of Fayette anticline badly broken by partings. Thin and unimportant. Blue limestone with calcareous shale beds. Generally present. Burned into lime for agricultural purposes. Persistent bed. Best development in the vicinity of Greensboro, where it is known as the Mapletown coal. Thin bed of small value. Local!}' developed in southern and western part of territory. Six to 9 feet of available coal of great value._____________________ Variable bed of coarse sandstone from 40 to 60 feet below the Pittsburg coal. Coarse sandstone, sometimes conglomeratic. Best horizon marker in this formation. Generally persistent, but in places replaced by sandy shale. Coarse sandstone. Best development in Ligonier Valley. Small bed in Ligonier Valley. Thin bed in the vicinity of Farmington. Coarse sandstone. Generally present, but occasionally replaced by sandy shale. Thick bed, badly broken by partings. Best developed along Laurel Ridge. Five to 15 feet of flint clay in Ligonier Valley. Thin bed. Group of three coal beds. The highest is of considerable importance in Ligonier Valley. [clay. Prominent bed along Laurel Ridge, underlain by valuable bed of flint fire Massive sandstone, or fine conglomerate. Prominent on Laurel Ridge and along Youghiogheny River. Forms "Elk Rocks" in Stewart Town- ship. Thin, irregular bed, best exposed along the railroad below Ohiopyle. Coarse, irregularly bedded sandstone. Blue fossiliferous limestone, extensively burned into lime for fertilizing. Best exposures along Laurel Ridge. Blue sandy limestone, grading downward into calcareous sandstone. Crushed for ballast. GENERAL CHARACTER OF FORMATIONS. The rocks of this formation, with the exception of the Waynes- burg sandstone at the base and the shaly sandstones beneath the Upper Washington limestone, are soft and shaly, particu- larly so in the Lambert syncline, where only a few thin beds of sandstone occur for a distance of 240 feet above the Waynes- burg coal. Contains a number of coal beds, which are gener- ally thin and unimportant. The most important coal-bearing formation of southwestern Pennsylvania. The rocks are decidedly calcareous, but beds of sandstone locally develop in thickness until they become prom- inent members of the formation. The Pittsburg sandstone is the most notable lentil of this character. Chiefly shales of various colors, green and red the most pro- nounced, interstratified with beds of coarse sandstone which are fairly persistent, but which occasionally lose their dis- tinctive character. This formation is less sandy than either of the contiguous forma- tions. It is composed largely of shale, but in places the Free- port sandstone is well developed above the Upper Kittanning coal, and another sandstone is present below the same horizon. Three prominent coal beds occur in this formation. Generally coarse, hard sandstone or conglomerate inclosing a thin irregular bed of shale. Equivalent to the uppermost beds of the Pottsville formation in the type locality. Red and green shales with beds of greenish sandstone inclosing a lentil of blue fossiliferous limestone, which is the thin edge of the great Greenbrier limestone of Virginia. Sandstone varying from thin-bedded, flaggy rock to coarse, irreg- ularly bedded conglomerate. Bed of siliceous limestone at the top. Olive-green shale and greenish sandstones. MARIITS E. CAMPBELL, Geologist.
Transcript of )U nrio: :T - USGS · 2011. 6. 14. · )U nrio::T GENERALIZED SECTION FOR MASONTOWN-UNIONTOWN...
)U nrio: :T
GENERALIZED SECTION FOR MASONTOWN-UNIONTOWN QUADRANGLES.SCALE: 1 INCH 200 FEET.
PERIOD.
CO D O QC LJ LL
Z O m oc < o
0. CL
tnCO
oHI Q
FORMATION NAME.
Dunkard formation.
Monongahela formation.
Conemaugh formation.
Allegheny formation.
Pottsville sandstone.
Mauoh Chunk shale. (Greenbrier limestone lentil.)
Pooono sandstone.
Catskill formation.
SYMBOL. COLUMNAR SECTION.
400+
Ccm 590±
Cpv
270±
180=
Cmc
(Cgr)
Cpo
Dck
300+
400+
NAMES OP MEMBERS.
Upper Washington limestone.
Washington coal.
Waynesburg " A "coal.
Waynesburg sand-stone._________
Waynesburg coal.
Uniontown coal.
Great limestone.
Sewickley coal.
Redstone coal.
Pittsburg sandstone. Pittsburg coal.____
Connellsville sand stone.
Morgantown sand stone.
Saltsburg sandstone. Hager coal.
Farmington coal. Mahoning sandstone.
Upper Freeport coal. Bolivar fire clay. Lower Freeport coal.
Kittanning group.
[coal. Brook ville-Glarion
Home wood sandstone.
Mercer coal.Connoquenessing sand-
stone.__________
Greenbrier limestone.
Siliceous limestone.
CHARACTER AND DISTRIBUTION OF MEMBERS.
Blue to black limestone, weathering white. Best development in areas lying west of this territory. It has been identified in Cumberland Township, Greene County, but not in Lambert syncline.
Thick bed, but usually too badly broken by partings to be of value. Present in Lambert syncline and in the high land west of Monongahela River.
Thin bed, generally of good quality.Coarse sandstone. Poorly developed in Lambert syncline and in north-
ern part of Uniontown syncline.Generally present throughout this territory, but west of Fayette anticline
badly broken by partings.
Thin and unimportant.
Blue limestone with calcareous shale beds. Generally present. Burned into lime for agricultural purposes.
Persistent bed. Best development in the vicinity of Greensboro, where it is known as the Mapletown coal.
Thin bed of small value.
Local!}' developed in southern and western part of territory.Six to 9 feet of available coal of great value._____________________
Variable bed of coarse sandstone from 40 to 60 feet below the Pittsburg coal.
Coarse sandstone, sometimes conglomeratic. Best horizon marker in this formation. Generally persistent, but in places replaced by sandy shale.
Coarse sandstone. Best development in Ligonier Valley. Small bed in Ligonier Valley.
Thin bed in the vicinity of Farmington.Coarse sandstone. Generally present, but occasionally replaced by sandy
shale.
Thick bed, badly broken by partings. Best developed along Laurel Ridge. Five to 15 feet of flint clay in Ligonier Valley. Thin bed.
Group of three coal beds. The highest is of considerable importance in Ligonier Valley.
[clay. Prominent bed along Laurel Ridge, underlain by valuable bed of flint fire
Massive sandstone, or fine conglomerate. Prominent on Laurel Ridge and along Youghiogheny River. Forms "Elk Rocks" in Stewart Town ship.
Thin, irregular bed, best exposed along the railroad below Ohiopyle.
Coarse, irregularly bedded sandstone.
Blue fossiliferous limestone, extensively burned into lime for fertilizing. Best exposures along Laurel Ridge.
Blue sandy limestone, grading downward into calcareous sandstone. Crushed for ballast.
GENERAL CHARACTER OF FORMATIONS.
The rocks of this formation, with the exception of the Waynes burg sandstone at the base and the shaly sandstones beneath the Upper Washington limestone, are soft and shaly, particu larly so in the Lambert syncline, where only a few thin beds of sandstone occur for a distance of 240 feet above the Waynes burg coal. Contains a number of coal beds, which are gener ally thin and unimportant.
The most important coal-bearing formation of southwestern Pennsylvania. The rocks are decidedly calcareous, but beds of sandstone locally develop in thickness until they become prom inent members of the formation. The Pittsburg sandstone is the most notable lentil of this character.
Chiefly shales of various colors, green and red the most pro nounced, interstratified with beds of coarse sandstone which are fairly persistent, but which occasionally lose their dis tinctive character.
This formation is less sandy than either of the contiguous forma tions. It is composed largely of shale, but in places the Free- port sandstone is well developed above the Upper Kittanning coal, and another sandstone is present below the same horizon. Three prominent coal beds occur in this formation.
Generally coarse, hard sandstone or conglomerate inclosing a thin irregular bed of shale. Equivalent to the uppermost beds of the Pottsville formation in the type locality.
Red and green shales with beds of greenish sandstone inclosing a lentil of blue fossiliferous limestone, which is the thin edge of the great Greenbrier limestone of Virginia.
Sandstone varying from thin-bedded, flaggy rock to coarse, irreg ularly bedded conglomerate. Bed of siliceous limestone at the top.
Olive-green shale and greenish sandstones.
MARIITS E. CAMPBELL,
Geologist.
OOLUMHALR fn> IP ¥ (nl WT£2) ini
MINE-SHAFT SECTIONS IN THE UNIONTOWN SYNCLINE, MASONTOWN-UNIONTOWN QUADRANGLES.SCALE: 1 INCH = 100 FEET.
LEISERING No. 3.
LEITH.
OLIVER No. 1.
UNIONTOWN COAL 25°
OLIVER No. 2.
WAYNESBURG COAL
GREAT LIMESTONE
-------- -SEWICKLEY COAL'
LEMONT.
100 -J
-BEDSTONE COAL----
-PITTSBURG COAL--*
LEISERING No. 2.
400 -
HILL FARM BORE-HOLE.
400 -Hg
MA YE a.
LEISERING No. 1.
MINE-SHAFT SECTIONS IN THE LAMBERT SYNCLINE, MASONTOWN QUADRANGLE.SCALE: 1 INCH =100 FEET.
LAMBERT.
EDENBORN.
GATES.
WASHINGTON COAL
WAYNESBURG "B" COAL
-WAYNESBURG "A" COAL
WAYNESBURG COAL-
-UNIONTOWN COAL
GREAT LIMESTONE
--------- SEWICKLEY COAL
REDSTONE COAL"
-o -^^--.--- - - --PITTSBURG COAL-
MARIUS R CAMPBELL,
Geologist.
U. S. GEOLOGICAL SURVEY CHARLES D. WALCOTT, DIRECTORSTATE OF PENNSYLVANIA
GEORGE W. MCNEES, SIMON HARROLD,FRED. D. BARKER, COMMISSIONERS
ILLOOTRATIO: TLJf 'Jnl. ;TPENNSYLVANIA
MASONTOWN-UNIONTOWN FOLIO
FIG. 27. RELIEF MAP OF THE NORTHERN APPALACHIAN MOUNTAINS.
The Masontown and Uniontown quadrangles are situated on the plateau lying west of the belt of valley ridges, in the southwestern part of Pennsylvania.
/ V I F^G
FIG. 28.-MAP SHOWING THE EXTENT OF THE NORTHERN PART OF THE APPALACHIAN COAL FIELD.
The position of the Masontown and Uniontown quadrangles within the coal field is shown by rectangles.
FIG. 29.-MAP SHOWING THE AREA OF THE PITTSBURG COAL IN PENNSYLVANIA.
The Masontown and Uniontown quadrangles are situated on its eastern border.
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