U.S. Geological Survey: Science for a Changing World - USGS visiaul identifier and link to main Web site at http://www.usgs.gov/

Stratigraphic section, Upper Pennsylvanian Conemaugh Group. For a more detailed explanation, contact Blaine Cecil at bcecil@usgs.gov    Figure 12. Stratigraphic section, Upper Pennsylvanian Conemaugh Group. Grafton sandstone of White (1903); Ames marine zone, Harlem coal bed; Pittsburgh red shale of White (1903); Saltsburg sandstone of Stevenson (1876); Bakerstown coal bed; Brush Creek marine zone; and Brush Creek coal bed are shown. See figure 11 for explanation of lithology symbols.

U.S. Department of the Interior, U.S. Geological Survey
URL: https:// pubsdata.usgs.gov /pubs/circ/2004/1264/html/trip3/fig12.html
For more information, contact Blaine Cecil
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