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Page 5642, results 141026 - 141050

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Vegetation of prairie potholes, North Dakota, in relation to quality of water and other environmental factors
R. E. Stewart, H.A. Kantrud
1972, Professional Paper 585-D
Measurements of specific conductance provide an adequate indication of the average salinity of surface waters in natural ponds and lakes of the northern .prairie region. Yearly and seasonal variations in specific conductance were much greater in brackish and subsaline wetlands than in fresh-water areas. The principal vegetational types. Land-use practices...
Hydrologic investigations of prairie potholes in North Dakota, 1959-68
W. S. Eisenlohr Jr., editor(s)
1972, Professional Paper 585-A
A prairie pothole is a depression in the prau1e, capable of storing water, that is the result of glacial processes. Years ago, there were many hundreds of thousands of prairie potholes in the North-Central United States, but large numbers of them have been drained for agricultural use. This report is...
Population ecology of the mallard: I. A review of previous studies and the distribution and migration from breeding areas
David R. Anderson, Charles J. Henny
1972, Resource Publication 105
This report, the first of a series of reports on a comprehensive analysis of population data on the? millIard at? the continental level, provides background information including a review of the history of waterfowl management and a resume of previous studies of the mallard. The breeding range of the mallard...
Geological Survey research 1972, Chapter C
Water Resources Division, U.S. Geological Survey
1972, Professional Paper 800-C
This collection of 37 short papers is the second published chapter of "Geological Survey Research 1972." The papers report on scientific and economic results of current work by members of the Conservation, Geologic, and Water Resources Divisions of the U.S. Geological Survey.Chapter A, to be published later in the year,...
Cenozoic rocks of the Santa Rita Mountains, southeast of Tucson, Arizona
Harald Drewes
1972, Professional Paper 746
The Santa Rita Mountains of southeastern Arizona are underlain, in part, by volcanic and sedimentary rocks and by many small intrusives, of Cenozoic age. These rocks provide a more complete geologic record than that of other ranges in the region, and consequently the Santa Rita Mountains are a useful reference...
Catalog of earthquakes along the San Andreas fault system in central California for the year 1971
W.H.K. Lee, K.L. Meagher, R.E. Bennett, E.E. Matamoros
1972, Open-File Report 72-225
A network of seismograph stations was established by the National Center for Earthquake Research (NCER) to study in detail the earthquakes along the San Andreas fault system in central California (Eaton, Lee, and Pakiser, 1970). This report, in the form of a catalog, summarizes the results of routine earthquake locations...
Petrographic and chemical reconnaissance study of some granitic and gneissic rocks near the San Andreas fault from Bodega Head to Cajon Pass, California
Donald C. Ross
1972, Professional Paper 698
This petrographic and chemical study is based on reconnaissance sampling of granitic and related gneissic rock in the California Coast and Transverse Ranges. In the Coast Ranges, granitic rocks are restricted to an elongate belt, the Salinian block, between the San Andreas and Sur-Nacimiento fault zones. These rocks have a...