Title: Lithostratigraphy and depositional environments of the Maquoketa Group (Ordovician) in northern Illinois
First published: 1983
Subjects: Geology, Geology, Stratigraphic, Petrology, Rocks, Sedimentary, Sedimentary Rocks, Stratigraphic Geology, Sedimentary rocks
Places: Illinois
Time periods: Ordovician
LC classification: QE105 .A45 no. 528, QE660 .A45 no. 528