States
2 Matching Results
Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.
Results:
1 - 2 of
2
Zinc-Lead-Copper Resources and General Geology of the Upper Mississippi Valley District
From introduction: This report discusses the general geology of the Upper Mississippi Valley zinc-lead district, the distribution of ore deposits, and some relations of the ore deposits to the major geologic features.
Date:
1955
Creator:
Heyl, Allen V.; Lyons, Erwin J.; Agnew, Allen F. & Behre, Charles H., Jr.
System:
The UNT Digital Library
The Synthetic Liquid Fuel Potential of Iowa
Report documenting the suitability of Iowa for plant locations to produce synthetic liquid fuels, based on raw materials. In this study, the only raw material considered in this survey was coal.
Date:
June 4, 1951
Creator:
Ford, Bacon, and Davis
System:
The UNT Digital Library