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Geologic formation in West Virginia, Pennsylvania, and Ohio, United States
Monongahela Formation, also Monongahela Group
Coal from the Monongahela Formation
Type
Group in Ohio, Pennsylvania, parts of West Virginia and Maryland, sometimes also seen as
Formation Sub-units
Uniontown Formation
Waynesburg Coal (No 11. Coal)
Gilboy Sandstone Member
Little Waynesburg Coal
Waynesburg Limestone Member
Uniontown Sandstone Member
Annabelle Shale Member
Uniontown Coal (No. 10 Coal)
Uniontown Limestone Member "Great Lime"
Fulton Shale Member
Pittsburgh Formation
Benwood Limestone Member
Upper Sewickley Coal
Upper Sewickley Sandstone Member
Sewickley (Meigis Creek) Coal (No. 9 Coal)
Lower Sewickley Sanstone Member
Sewickley Limestone Member
Cedarville Sanstone Member
Redstone-Pomeroy coal (No 8a. Coal)
Westone Sanstone Member
Pittsburgh coal seam (No 8. Coal)
Underlies
Washington Formation
[1] Overlies
Conemaugh Group Region
West Virginia ,
Pennsylvania ,
Ohio ,
Maryland Country
United States
The Monongahela Formation is a
geologic formation in
West Virginia ,
Pennsylvania ,
Ohio , and
Maryland . It is dated to the
Carboniferous
period . The top of the group is marked by the Waynesburg Coal (No. 11 Coal) and its base is marked by the
Pittsburgh coal seam (No. 8 Coal). The Pittsburgh coal is the thickest and most extensive (11,000 sq mi)
bituminous coal bed in the
Appalachian Basin
[2]
References
^ Martin, Wayne D. (1998).
"GEOLOGY OF THE DUNKARD GROUP (UPPER PENNSYLVANIAN-LOWER PERMIAN) IN OHIO, WEST VIRGINIA, AND PENNSYLVANIA" (PDF) . Bulletin . 73 : 1–49. Retrieved 14 November 2019 .
^ Ruppert, Leslie F; Tewalt, Susan J; Bragg, Linda J; Wallack, Rachel N (2000).
"A digital resource model of the Upper Pennsylvanian Pittsburgh coal bed, Monongahela Group, northern Appalachian basin coal region, USA" . International Journal of Coal Geology . 41 (1–2): 3–24.
doi :
10.1016/s0166-5162(99)00009-9 .
ISSN
0166-5162 .
Ph
Pz
P
C
D
Upper
Famennian
Venango Group
Gantz, Hundred-foot sand, Fifty-foot sand, Thirty-foot sand, Nineveh-Snee, Gordon Stray, Fourth Sand, Fifth Sand, Bayard Sand, Elizabeth Sand, Sweet Richard,
Chadakoin Formation , First Warren
Bradford Group
Upper Warren, Lower Warren, Speechely Stray, Speechely, Balltown A, Balltown B, Balltown C, Sheffield, First Bradford, Second Bradford, Third Bradford, Kane
Elk Group
1st Elk Sand, 2nd Elk Sand, 3rd Elk Sand, 4th Elk Sand, 5th Elk Sand
Ohio Shale
Catskill Group
Frasnian
Middle
Lower
S
O
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