X-ray spectrochemical investigations of a Pennsylvanian underclay
By: by Robert Leslie Niemann
Published: 1961
Language: eng
Number of pages: 146
Subjects: Clay -- Illinois; Geology, Stratigraphic -- Pennsylvanian; Geology -- Illinois -- Grundy County
Notes: Thesis (Ph. D.)--University of Illinois, Dept. of Geology, 1961

Bibliography: leaves 140-142