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. Early Pennsylvanian paleotopography and depositional environments, Rock Island County, Illinois . MIDDLE UPPER Series MARCUS RACINE WAPSIPINICON CEDAR VALLEY rTTT !SWEETLAND. _\QREEK ForiTiation WW I . I • I I 1 fc j m \& \~ hn hft|r- -rt-n- llllhil Composite section Figure 4. Composite section of Pennsylvanian, Devonian and Upper Silurian strata in the Rock Island County area. Pennsylvanian section from Searight and Smith, 1969.
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Keywords: ., bookcentury1900, booksubjectgeologystratigraphic, booksubjectpal