General Geology Report 08
A Paleozoic section in south-central Pennsylvania

by
Willard, Bradford, and Cleaves, A. B.
1938
Suggested Citation:Willard, Bradford, and Cleaves, A. B., 1938, A Paleozoic section in south-central Pennsylvania: Pennsylvania Geological Survey, 4th ser., General Geology Report 8, 38 p. [Available online.]
Description:This report is a study of the rocks that occur along a narrow north-south-trending belt from Highspire south of Harrisburg, northward along the Susquehanna River to its confluence with the Juniata River, and then up the Juniata River past Amity Hall to Half Falls Mountain. The text explores the physiography, stratigraphy, and structure of the area, and it includes a detailed itinerary of exposures that one can see travelling up the east banks of the rivers and returning down the west banks. The section in this south-central Pennsylvania area includes units of Ordovician, Silurian, Devonian, Mississippian, Pennsylvanian, Triassic, and Pleistocene age. The report includes two fold-out plates showing a columnar section and a small-scale geologic map.
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