Filter by: Subject
Now showing items 1-10 of 2
Devonian - Hampshire formation; Jennings formation; Romney shale; Monterey sandstone (2) |
Geology -- United States --Maps (2) |
Geology--Virginia--Maps (2) |
Carboniferous - Blackwater formation; Canna formation; Greenbrier limestone; Pocono sandstone (1) |
Carboniferous - Pocono sandstone (1) |
Geology--West Virginia--Pendleton County--Maps (1) |
Jurassic - unnamed strata (1) |
Silurian - Monterey sandstone; Lewistown limestone; Rockwood formation; Cacapon sandstone; Tuscarora quartzite; Juniata formation; Martinsburg shale; Shenandoah limestone (1) |
Silurian - Monterey sandstone; Lewistown limestone; Rockwood formation; Massanuuon sandstone; Martinsburg shale; Shenandoa limestone (1) |
Triassic - unnamed strata (1) |