Bulletin of the Geological Society of America, Volume 18The Society, 1907 - Geology Vols. 1-44 include Proceedings of the annual meeting, 1889-1933, later published separately. |
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30 feet Allegheny anorthosite basin Benwood border buttes Carboniferous clay climatic Concealed concentration conglomerate correlation crater creek deposits Doctor White drumlins Dunkard east eastern erosion evidence exposed exposure farther Feet Inches feet thick FIGURE formation forms fossils gabbro Geol Geologist glacial glacier gravel Greene county horizon I. C. White interval J. J. Stevenson Jollytown lake lava limestone Lop-Nor Lower Sewickley Mauch Chunk Monongahela moraine Mount Taylor mountain Nineveh Nineveh limestone northern Ohio river outcrop overlying Paleozoic Pennsylvania Pittsburg Pittsburg coal bed portion present Professor quartzite red beds red shale Redstone region reported rock sand sandstone sediments Sewickley coal bed shale shows side southern strata stream surface syenite thin tion township U. S. Geological Survey Uinta unconformity underlying Uniontown Uniontown coal bed Upper Sewickley Upper Washington limestone valley Washington coal bed Washington county Waynesburg Waynesburg coal bed West Virginia western zone