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|Title:||Vertical Variations in the Clay Mineralogy of Sandstone, Shale, and Underclay Members of Pennsylvanian Cyclothems|
|Author(s):||Webb, David Knowlton, Jr.|
|Department / Program:||Geology|
|Degree Granting Institution:||University of Illinois at Urbana-Champaign|
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1961.
|Date Available in IDEALS:||2014-12-04|