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Page 5075, results 126851 - 126875

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Relationship between physical condition of the carbonate fraction and sediment environments: Northern Puerto Rico shelf
O. H. Pilkey, E.I. Fierman, James V. A. Trumbull
1979, Sedimentary Geology (24) 283-290
Each of three sediment types recognizable on the northern Puerto Rico shelf and beaches is characterized by calcareous material in different physical condition. Dark terrigenous sand is accumulating at a relatively rapid rate and has a carbonate fraction containing fresh-appearing angular particles. The pure-carbonate skeletal-sand sediment type has a much...
Clay mineralogy, fine-grained sediment dispersal, and inferred current patterns, lower Cook Inlet and Kodiak shelf, Alaska
James R. Hein, Arnold H. Bouma, Monty A. Hampton, Ross C. Robin
1979, Sedimentary Geology (24) 291-306
Because lower Cook Inlet and Kodiak shelf are being explored and developed for their petroleum resources, it is essential for environmental reasons to understand the sediment dispersal routes and current patterns. The Susitna River flows into upper Cook Inlet and is the source of clay minerals in Holocene deposits found...
Research in the United States relative to geochemistry and health
W.L. Petrie, H.L. Cannon
1979, Physics and Chemistry of the Earth (11) 829-847
Increasing concern regarding the effects of the geochemical environment on health in the United States has fostered research studies in a number of universities and government agencies. The necessity to evaluate the effects of natural and man-made elemental excesses in the environment on health requires the establishment of requirements and...
The determination of lead in 13 USGS standard rocks
P. J. Aruscavage, E.Y. Campbell
1979, Talanta (26) 1052-1054
Lead was determined in 13 U.S. Geological Survey standard rocks by graphite furnace atomization and atomic-absorption spectrometry after extraction of lead with diethylammonium diethyldithiocarbamic acid. An analysis of variance of the results obtained from a random sampling of three different bottles of each standard rock showed no heterogeneity among bottles,...
4 NCIC Data Acquisition Guide
Water Resources Division, U.S. Geological Survey
1979, Report
The National Cartographic Information Center (NCIC) is the information branch of the National Mapping Program. NCIC gathers descriptions of cartographic products held by Federal, State and local agencies, and private companies. Computerized information systems are used to edit, store, and distribute these descriptions. The Aerial Photography Summary Record System (APSRS)...
Maps showing late Pleistocene and Holocene evolution of the South Texas continental shelf
Carroll A. Pyle, Henry L. Berryhill Jr., Anita R. Trippet
1979, Miscellaneous Field Studies Map 1134
Interpretation of acoustical profiles has provided insight into the late Quaternary geologic history of the Continental Shelf off South Texas. (See the geographic index map on sheet 1 for location of the area studied.) The profiles reveal the interplay of tectonism, sedimentation, and cyclic fluctuations of sea level in the...
Thermoluminescence dating of Hawaiian basalt
Rodd James May
1979, Professional Paper 1095
The thermoluminescence (TL) properties of plagioclase separates from 11 independently dated alkalic basalts 4,500 years to 3.3 million years old and 17 tholeiitic basalts 16 years to 450,000 years old from the Hawaiian Islands were investigated for the purpose of developing a TL dating method for young volcanic rocks. Ratios...
Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Gulkana Quadrangle, Alaska
Edward Huntington Cobb
1979, Open-File Report 79-1247
These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Gulkana quadrangle, Alaska. All references to most reports of the Geological Survey, the U.S. Bureau of Mines, and the State of Alaska Division of...
Drainage areas of surface water bodies of southern Maine coastal river basins
Richard A. Fontaine
1979, Open-File Report 78-556-D
The report contains drainage-area values for: lakes and ponds included in the Maine Informational Display Analysis System (MIDAS) File 906-Z, streams that drain areas greater than 25 mil2, dams, and locations where hydrologic data are collected. Supplemental information includes State and Federal location systems used to identify these lakes and...