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Geology and zinc-lead deposits in the Catfish Creek area, Dubuque County, Iowa
C. Erwin Brown, Jesse W. Whitlow, Percy Crosby
1957, Miscellaneous Field Studies Map 116
A detailed geologic study was begun in 1951 by the U.S. Geological Survey in cooperation with the Iowa Geological Survey to appraise the potentialities of the Iowa part of the Wisconsin-Illinois-Iowa zinc-lead district for (1) zinc ore in rock strata that contain pitch-and-flat zinc ore bodies elsewhere in the mining...
Floods of April-June 1957 in Oklahoma and western Arkansas
D.L. Weiss, C.W. Sullivan
1957, Open-File Report 57-127
Floods of unusual magnitude in volume for the three-month period in Oklahoma and western Arkansas resulted from several heavy rains. In one storm period 20 inches of precipitation fell within 24 hours, on May 15, 16, near Hennessey, Okla., according to information obtained by a 'bucket survey.' Total precipitation for...