Trace Elements Reconnaissance in Indiana, Illinois, Missouri, Arkansas, and Kentucky (open access)

Trace Elements Reconnaissance in Indiana, Illinois, Missouri, Arkansas, and Kentucky

Report discussing examination of various trace elements by the U.S. Geological Survey in Indiana, Illinois, Missouri, Arkansas, and Kentucky during October and November, 1946.
Date: May 1949
Creator: Stratton, Edward V. & Nelson, John M.
System: The UNT Digital Library
Shorter Contributions to General Geology, 1936 (open access)

Shorter Contributions to General Geology, 1936

From abstract: This report describes four species of Ostreidae from the Upper Cretaceous of the Gulf region. The zones that the species characterize lie either in the upper part of the Austin chalk or in beds of upper Austin age.
Date: 1940
Creator: Loughlin, G. F.
System: The UNT Digital Library