Petrology of the Pennsylvanian underclays of Illinois

• 1 October 1938
• journal article
• Published by Geological Society of America in GSA Bulletin
• Vol. 49  (10) , 1485-1514
• https://doi.org/10.1130/gsab-49-1485

Abstract

Keywords

• PENNSYLVANIAN UNDERCLAYS OF ILLINOIS
• PETROLOGY OF THE PENNSYLVANIAN UNDERCLAYS