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, Middle Pennsylvanian Allegheny Formation. For a more detailed explanation, contact Blaine Cecil at bcecil@usgs.gov
Figure 15. Stratigraphic section, Middle Pennsylvanian Allegheny Formation. Middle and Lower Kittanning intervals 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/fig15.html
For more information, contact Blaine Cecil
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