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Page 4829, results 120701 - 120725

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Map projections used by the U.S. Geological Survey
John Parr Snyder
1982, Bulletin 1532
After decades of using only one map projection, the Polyconic, for its mapping program, the U.S. Geological Survey (USGS) now uses sixteen of the more comnon map projections for its published maps. For larger scale maps, including topographic quadrangles and the State Base Map Series, conformal projections such as the...
High-resolution seismic-reflection profiles collected aboard R/V GYRE, cruise GYRE 80-G-7A, over the continental slope and upper continental rise, offshore New Jersey
J.C. Hampson Jr.
1982, Open-File Report 82-305
During August 1980, the U.S. Geological Survey (USGS) collected 982 km of single-channel seismic-reflection data on the Continental Slope and upper Rise between Lindenkohl Canyon and Toms Canyon, off New Jersey (fig. 1). The work was conducted aboard R/V GYRE (cruise 80-G-7A). The trackline grid of this cruise extends and...
Depositional history of Louisiana-Mississippi outer continental shelf
J. L. Kindinger, R. J. Miller, C. E. Stelting
1982, Open-File Report 82-1077
A geological study was undertaken in 1981 in the Louisiana-Mississippi outer continental shelf for the Bureau of Land Management. The study included a high-resolution seismic reflection survey, surficial sediment sampling and surface current drifter sampling. Approximately 7100 sq km of the Louisiana-Mississippi shelf and upper slope were surveyed. The sea...
Progress report on lithium-related geologic investigations in Bolivia
J.R. Davis, K. A. Howard, S.L. Rettig, R. L. Smith, G. E. Ericksen, Francois Risacher, Hugo Alarcon, Ricardo Morales
1982, Open-File Report 82-782
The September 1, 1981, Samoa Islands Region earthquake occurred at the extreme northern end of the Tonga arc in a region where the Pacific plate may be disjointed along a hinge fault. In the last 50 years, magnitude 7 or greater earthquakes have occurred in this region on the average...
Land subsidence in the San Joaquin Valley, California, as of 1980
R. L. Ireland, J. F. Poland, F. S. Riley
1982, Open-File Report 82-370
Land subsidence due to ground-water overdraft in the San Joaquin Valley began in the mid-1920 's and continued at alarming rates until surface was imported through major canals and aqueducts in the 1950 's and late 1960's. In areas where surface water replaced withdrawal of ground-water, water levels in the...