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Page 6174, results 154326 - 154350

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Drainage area data for Alabama streams
J.S. Stallings, L.B. Peirce
1957, Open-File Report 57-106
The drainage area of a river basin is an important parameter in many engineering equations used for hydrologic design. It is not a parameter, however, that always requires precise measurement. Factors in the hydrologic cycle such as rainfall, runoff, transpiration, and infiltration cannot be measured nearly as closely as drainage...
A field method for the determination of calcium and magnesium in limestone and dolomite
Leonard Shapiro, Walter Wallace Brannock
1957, Open-File Report 57-99
The method is an adaptation of a procedure described by Betz and Noll1 in 1950. Calcium and magnesium are determined by visual titration using Versene (disodium ethylenediamine tetraacetate) with Murexide (ammonium purpurate) as the indicator for calcium and Eriochrome Black T as the indicator for magnesium....
Photogeologic maps of the Iris SE and Doyleville SW quadrangles, Saguache County, Colorado
Kathleen McQueen
1957, Trace Elements Memorandum 984
The Iris SE and Doyleville SW quadrangles, Saguache County, Colorado include part ot the Cochetopa mining district. Photogeologic maps of these quadrangles show the distribution of sedimentary rocks of Jurassic and Cretaceous age; precambrian granite, schist, and gneiss; and igneous rocks of Tertiary age. Sedimentary rocks lie on an...