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164570 results.

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Page 6197, results 154901 - 154925

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Geology of the Calamity Mesa quadrangle, Colorado
Fred W. Cater
1955, Geologic Quadrangle 61
The series of Geologic Quadrangle Maps of the United States continues the series of quadrangle maps begun with the folios of the Geologic Atlas of the United States, which were published from 1894 to 1945. The present series consists of geologic maps, supplemented where possible by structure sections, columnar sections,...
A flood-flow formula for Connecticut
B. L. Bigwood, M. P. Thomas
1955, Circular 365
A study of the frequency and magnitude of floods within the Connecticut area is contained in this report. Annual flood discharges for 44 stream-gaging stations whose records range in length from l0 to 40 years are presented and a regional flood-frequency relationship developed based upon the ratios of all floods...
Geology of the northern Black Hills bentonite mining district
Sam H. Patterson
1955, Open-File Report 55-131
Extensive deposits of bentonite are present in the Cretaceous sedimentary rock strata cropping out on the northern flank of the Black Hills. These deposits have been the subject of a study by the U.S. Geological Survey as part of the program of the Department of the Interior for appraisal of...