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Zinc-Lead Ore Reserves of the Tri-State District, Missouri-Kansas-Oklahoma
Report issued by the Bureau of Mines over studies of zinc-lead reserves in the tri-state area. The results of the studies are presented. This report includes tables, maps, and illustrations.
Date:
July 1949
Creator:
Ruhl, Otto; Allen, Simeon A. & Holt, Stephen P.
System:
The UNT Digital Library
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