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Effects of Urban Development on the Flood-Flow Characteristics of the Walnut Creek Basin, Des Moines Metropolitan Area, Iowa
Report discussing the probable impact of urban development on the magnitude and frequency of flooding in the lower reaches of the Walnut Creek basin. (from Abstract)
Date:
February 1978
Creator:
Lara, Oscar G.
System:
The UNT Digital Library
Quaternary Geology of Minnesota and Parts of Adjacent States
Description of geology in Minnesota and explanations of glacial drift within the state an immediate surroundings (Wisconsin, Iowa, North Dakota and South Dakota) with sections detailing the movement of each glacier and relevant geological notes. Index starts on page 147.
Date:
1930
Creator:
Leverett, Frank, 1859-1943
System:
The UNT Digital Library
Plan of Study for the Northern Midwest Regional Aquifer-System Analysis
From abstract: Sedimentary rocks of Cambrian and Ordovician age form a major aquifer system in most of Wisconsin and Iowa, northern Illinois, northwestern Indiana, southeastern Minnesota, and northern Missouri. Many metropolitan areas depend on the aquifer for all or part of their water supplies. Declines in potentiometric head have been large in the most heavily pumped areas, most notably Chicago, Milwaukee-Waukesha, Minneapolis-St. Paul, and Des Moines.
Date:
April 1979
Creator:
Steinhilber, W. L. & Young, H. L.
System:
The UNT Digital Library
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