Bluefield Formation
Geologic formation in West Virginia, United States / From Wikipedia, the free encyclopedia
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The Bluefield Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Mississippian subperiod of the Carboniferous period. Sediments of this age formed along a large marine basin lying in the region of what is now the Appalachian Plateau. The Bluefield Formation is the lowest section of the primarily siliciclastic Mauch Chunk Group, underlying the Stony Gap Sandstone Member of the Hinton Formation and overlying the limestone-rich Greenbrier Group.[1][2][3]
Quick Facts Type, Unit of ...
Bluefield Formation | |
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Stratigraphic range: Late Visean?-Early Serpukhovian ~323.5–326.5 Ma | |
Type | Formation |
Unit of | Mauch Chunk Group |
Sub-units | Coney Member, Clayton Member,Graham Member, Bertha Member, Bradshaw Member, Indian Mills Member, Raines Corner Member, Possumtrot Shale, Droop Sandstone, Talcott Shale, Ada Shale, Reynolds Limestone, Bickett Shale, Webster Springs Sandstone, Glenray Limestone, Lillydale Shale |
Underlies | Hinton Formation |
Overlies | Greenbrier Group |
Lithology | |
Primary | Mudstone, limestone, sandstone |
Other | Conglomerate, coal |
Location | |
Region | Appalachia and Southeastern United States |
Country | United States |
Extent | Virginia, West Virginia, Pennsylvania?, Maryland?, Kentucky? |
Type section | |
Named for | Bluefield, West Virginia |
Named by | Campbell, 1896 |
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