The I-170 Pennsylvanian Exposure in St. Louis, Missouri

This link takes you to a discussion by Dr. Norman R. King, Professor of
Geology at the University of Southern Indiana, about the rocks exposed
at the I-170 highway cut. Dr. King describes the rock units and correlates
them with rock units elsewhere in the Midcontinent region. He interprets
their environments of deposition, and also places them in the context of
larger-scale geological processes taking place in the Midcontinent region
and around the globe during the Pennsylvanian Period.

The I-170 Pennsylvanian Exposure in St. Louis, Missouri
Dr. Norman R. King

Site Menu (St. Louis Pennsylvanian Fossils of the Altamont Formation)

St. Louis Pennsylvanian Fossils of the Altamont Formation