Variations in the correlation of body size with concentrations of Cu and Ag in the bivalve Macoma balthica
Carol R. Strong, Samuel N. Luoma
1981, Canadian Journal of Fisheries and Aquatic Sciences (38) 1059-1064
The relationship between body size and concentrations of Cu and Ag varied from strongly positive to strongly negative in four populations of the bivalve Macoma balthica in San Francisco Bay. The correlations appeared to be influenced by the degree of enrichment in tissues, size-dependent differences and seasonal variations in growth rate, and...
Earthquakes in the United States, October-December 1979
Carl W. Stover, J. H. Minsch, B.G. Reagor, P. K. Smith
1981, Circular 836-D
No abstract available....
Audio-magnetotelluric investigation of the North End Wilderness Study Area, Cochise County, Arizona
Kevin H. Nervick, Frances M. Boler
1981, Open-File Report 81-774
No abstract available....
Seepage study of the Sevier River and the Central Utah, McIntyre, and Leamington Canals, Juab and Millard Counties, Utah
L. R. Herbert, R.W. Cruff, Walter F. Holmes
1981, Open-File Report 81-820
A study of the gains or losses of the Sevier River and the Central Utah, McIntyre, and Leamington Canals in the Leamington area, in Juab and Millard Counties, Utah, was made to determine changes in those reaches. Three to seven sets of seepage measurements made during 1980 were used in...
Distribution and petrology of the Anderson-Coyote Reservoir volcanic rocks
John K. Nakata
1981, Open-File Report 80-1256
No abstract available....
Geohydrologic reconnaissance of Lake Mead National Recreation Area: Las Vegas Wash to Opal Mountain, Nevada
R. L. Laney
1981, Open-File Report 82-115
The study is a geohydrologic reconnaissance of about 170 square miles in the Lake Mead National Recreation Area from Las Vegas Wash to Opal Mountain, Nevada. The study is one of a series that describes the geohydrology of the recreation area and that indentifies areas where water supplies can be...
Simulative models for the analysis of ground-water flow in Vekol Valley, the Waterman Wash area, and the Bosque area, Maricopa and Pina Counties, Arizona
D. T. Matlock
1981, Open-File Report 82-77
Simulative ground-water flow models for Vekol Valley, the Waterman Wash area, and the Bosque area were developed for use in evaluating alternatives for developing a ground-water supply for the Ak-Chin Indian Community. The hydraulic properties of the basin-fill deposits used in the models were estimated primarily from aquifer tests made...
Geology and oil shale resources near Elko, Nevada
B.J. Solomon
1981, Open-File Report 81-709
No abstract available....
Potentiometric surface of the Wilcox-Carrizo aquifer; Bienville, Red River, and northern Natchitoches, and southern Webster Parishes, Louisiana
G.N. Ryals
1981, Open-File Report 80-1179
The potentiometric surface of the Wilcox-Carrizo aquifer in central northwestern Louisiana is shown by contours using data collected from 1960 to 1980. The aquifer is not affected by regional water-level declines as no large pumping centers have been developed. Seasonal water-level fluctuations in wells are generally less than 10 feet...
Estimated oil and gas reserves, Gulf of Mexico outer continental shelf and continental slope, December 31, 1980
Jack E. Hewitt, J.P. Brooke, J.H. Knipmeyer, P.Y. Roy
1981, Open-File Report 81-604
No abstract available....
Geotechnical laboratory test results on piston core samples taken from the mid-Atlantic upper continental slope by the U.S. Geological Survey during September 1979
Harold W. Olsen, James S. Booth, James E. Robb, William S. Gardner, Ram D. Singh, Paul G. Swanson, Paul W. Mayne, R. Gregory Hamadock
1981, Open-File Report 81-366
No abstract available....
Investigation of August 1980 blowout and fire, lease OCS-G 4065 Matagorda Island Block 669, Gulf of Mexico off the Texas coast
D.J. Bourgeois, R.J. Melancon, W.H. Martin, P. McDonald
1981, Open-File Report 81-706
No abstract available....
Reconnaissance geologic map of the Columbia River basalt group, northern Oregon and western Idaho
Donald A. Swanson, J. L. Anderson, V.E. Camp, P. R. Hooper, W.H. Taubeneck, T. L. Wright
1981, Open-File Report 81-797
No abstract available....
Volgograd and vicinity: a Landsat view
William A. Dando, Gary E. Johnson
1981, Journal of Geography (80) 235-237
Many diverse features can be discerned on the Landsat image of Volgograd and vicinity. Some of these features have resulted directly from man's alteration of the land surface in accordance with Stalin's and Khrushchev's plans for control of climate and for development in Volgograd and the surrounding area. Landsat images...
Remote sensing: a tool for park planning and management
William C. Draeger, Lawrence R. Pettinger
1981, Parks (6) 1-6
Remote sensing may be defined as the science of imaging or measuring objects from a distance. More commonly, however, the term is used in reference to the acquisition and use of photographs, photo-like images, and other data acquired from aircraft and satellites. Thus, remote sensing includes the use of such...
Use of remote sensing for monitoring deforestation in tropical and subtropical latitudes
J. J. Talbot, Lawrence R. Pettinger
1981, Ciencia Interamericana (21) 63-71
Of the three types of remotely sensed data discussed here, Landsat data offers the greatest potential for monitoring broad changes in extensive tropical forest environments because of its low-cost, synoptic, repetitive coverage. Scientists from developing countries can choose from a variety of Landsat data classification techniques, thus enabling each country...
The Lake Bosumtwi impact crater, Ghana
William B. Jones, Michael Bacon, David A. Hastings
1981, Geological Society of America Bulletin (96) 342-349
The 1-m.y.-old Bosumtwi Crater, Ghana, has a nearly circular shape with a rim diameter of 11 km north-south and 10 km east-west. It is surrounded by a circular depression and an outer ridge of diameter 20 km. Polymict breccias averaging at least 20 m thick with clasts as much as...
Evaluation of Landsat Multispectral Scanner data for mapping vegetated soil landscapes
D. R. Thompson, Robert H. Haas, M. H. Milford
1981, Soil Science Society of America Journal (45) 91-95
Landsat multispectral scanner data for Brazos County, Texas, were evaluated in terms of effectiveness for classifying soils on vegetated landscapes at three times during the year: a time of normally adequate soil water, a time of expected soil water deficit, and a time when soil water is normally being replenished....
Earthquakes, July-August, 1980
W. J. Person
1981, Earthquake Information Bulletin (USGS) (13) 69-72
The 1906 earthquake at Palo Alto, California; an interview with Birge M. Clark
H. Spall
1981, Earthquake Information Bulletin (USGS) (13) 43-48
Mr.Birge M. Clark, an architect in Palo Alto, Calif., was living in Palo Alto at the time of the 1906 earthquake. his father-in-law was Professor S. D. Townley, well known for his 1939 compilation, with Maxwell W. Allen, of earthquakes along the Pacific coast from 1769 to 1928. ...
Earthquakes, July-August 1981
W. J. Person
1981, Earthquake Information Bulletin (USGS) (13) 228-230
No abstract available....
The seismicity of Ethiopia; active plate tectonics
P. Mohr
1981, Earthquake Information Bulletin (USGS) (13) 124-133
"But I tell you, when you look at the way the pieces of the northeastern portion of the African continent seem to fit together, separated by a narrow gulf, you could almost make a believer [in continental drift] of anybody" Astronaut Harrison Schmidt, on the view from Apollo 17. Ethiopia, descended...
Introduction and summary: Chlorinated hydrocarbons as a factor in the reproduction and survival of lake trout (Salvelinus namaycush) in Lake Michigan
Wayne A. Willford, Roger A. Bergstedt, William H. Berlin, Neal R. Foster, Robert J. Hesselberg, Michael J. Mac, Dora R. May Passino, Robert E. Reinert, Donald V. Rottiers
1981, Book chapter, Chlorinated hydrocarbons as a factor in the reproduction and survival of lake trout (Salvelinus namaycush) in Lake Michigan
Although lake trout (Salvelinus namaycush) were considered extinct in Lake Michigan by the mid 1950's, control of the parasitic sea lamprey (Petromyzon marinus) and extensive restocking resulted in an abundance of hatchery-produced lake trout in the lake by the early 1970's. However, no naturally produced yearling or older lake trout...
Earthquakes, March-April 1981
W. J. Person
1981, Earthquake Information Bulletin (USGS) (13) 195-198
There was on major earthquake (7.0-7.9) during this reporting period on April 24 in the Vanuatu Islands (formerly the New Hebrides islands). the series of strong earthquakes continued in Greece and caused additional casualties and damage, and Peru expereinced a moderate earthquake that caused fatalities and damage on April 18. In...
Two examples of seismic zonation in the San Francisco Bay region
W. J. Kockelman, E. E. Brabb
1981, Earthquake Information Bulletin (USGS) (13) 80-84
The science of earthquakes in complex, requiring data and research in seismology, geology, soil mechanics, geophysics, hydrology, and engineering. Nevertheless, if earthquake hazards are to be reduced, earth science information must be translated from scientific and technical language into a form that can be effectively used by planners and decisionmakers. Out...
