Shuttle imaging radar experiment
C. Elachi, W.E. Brown, J.B. Cimino, T. Dixon, D.L. Evans, J.P. Ford, R.S. Saunders, C. Breed, H. Masursky, J.F. McCauley, G. Schaber, L. Dellwig, A. England, H. MacDonald, P. Martin-Kaye, F. Sabins
1982, Science (218) 996-1003
The shuttle imaging radar (SIR-A) acquired images of a variety of the earth's geologic areas covering about 10 million square kilometers. Structural and geomorphic features such as faults, folds, outcrops, and dunes are clearly visible in both tropical and arid regions. The combination of SIR-A and Seasat...
Subsurface valleys and geoarcheology of the eastern Sahara revealed by shuttle radar
J.F. McCauley, G. G. Schaber, C. S. Breed, M. J. Grolier, C.V. Haynes, B. Issawi, C. Elachi, R. Blom
1982, Science (218) 1004-1020
The shuttle imaging radar (SIR-A) carried on the space shuttle Columbia in November 1981 penetrated the extremely dry Selima Sand Sheet, dunes, and drift sand of the eastern Sahara, revealing previously unknown buried valleys, geologic structures, and possible Stone Age occupation sites. Radar responses from bedrock and...
Uranium in spring water and bryophytes at basin creek in central idaho
H.T. Shacklette, J. A. Erdman
1982, Journal of Geochemical Exploration (17) 221-236
Arkosic sandstones and conglomerates of Tertiary age beneath the Challis Volcanics of Eocene age at Basin Creek, 10 km northeast of Stanley, Idaho, contain uranium-bearing vitrainized carbon fragments. The economic potential of these sandstones and conglomerates is currently being assessed. Springs abound at the contacts of rock units, and water...
Mineral identification from orbit: Initial results from the shuttle multispectral infrared radiometer
Alexander F.H. Goetz, L. C. Rowan, M.J. Kingston
1982, Science (218) 1020-1024
A shuttle-borne radiometer containing ten channels in the reflective infrared has demonstrated that direct identification of carbonates and hydroxyl-bearing minerals is possible by remote measurement from Earth orbit. ...
Auditory evoked potentials in the West Indian Manatee (Sirenia: Trichechus manatus)
Theodore H. Bullock, Thomas J. O'Shea, Michael C. McClune
1982, Journal of Comparative Physiology A (148) 547-554
Potentials evoked by clicks and tone pips were recorded by fine wires inserted extracranially in four West Indian manatees (Trichechus manatus) in air. Sounds were delivered via padded ear phones. Averaging a few thousand trials at 20/s reveals early peaks at N5.4 (‘vertex’ negativity to a frontal reference, at 5.4 ms),...
U-Pb ages of uranium ores in the Churchrock uranium district, New Mexico
K.R. Ludwig, Bruce Rubin, Neil Fishman, Richard L. Reynolds
1982, Economic Geology (77) 1942-1945
No abstract available....
The United Kingdom-Caltech asteroid survey
S. J. Bus, E. F. Helin, R. S. Dunbar, Eugene Merle Shoemaker, J. Dawe, J. Barrow, M. Hartley, D. Morgan, K. Russell, A. Savage
1982, Book chapter, Reports of Planetary Programs, 1982
No abstract available....
Status of Alaska sea otter populations and developing conflicts with fisheries
1982, Conference Paper, Transactions of the 47th North American wildlife and national resources conference
No abstract available....
Use and interpretation of statistics in wildlife journals
Thomas C. Tacha, William D. Warde, Kenneth P. Burnham
1982, Wildlife Society Bulletin (10) 355-362
Use and interpretation of statistics in wildlife journals are reviewed, and suggestions for improvement are offered. Populations from which inferences are to be drawn should be clearly defined, and conclusions should be limited to the range of the data analyzed. Authors should be careful to avoid improper methods...
Volcanism in ice on Europa
A. F. Cook, Eugene Merle Shoemaker, L. A. Soderblom, K. F. Mullins, R. Fiedler
1982, Book chapter, Reports of Planetary Programs, 1982
No abstract available....
Magnitude > or = 6.0 earthquakes
Henry Spall, editor(s)
1982, Earthquake Information Bulletin (USGS) (14) 192-195
No abstract available....
Ice sculpture in the Martian outflow channels
Baerbel K. Lucchitta
1982, Journal of Geophysical Research B: Solid Earth (87) 9951-9973
Many landforms in Martian outflow channels have characteristics that suggest sculpture by glaciers, ice streams, or ice sheets. Viking Orbiter and terrestrial satellite images were examined at similar resolution to compare features of the Martian outflow channels to features produced by the movement of ice on earth. Many resemblances were...
Reply to comments of S.M. Johnson
P. K. Theobald Jr.
1982, Journal of Geochemical Exploration (17) 163-164
No abstract available. ...
Natural groundwater recharge in an upland area of central North Dakota, U.S.A.
B.W. Rehm, S.R. Moran, G.H. Groenewold
1982, Journal of Hydrology (59) 293-314
The magnitude of groundwater recharge to coal aquifers in a 150-km2 area in west-central North Dakota was determined using three separate approaches: (1) the net water level rise in water-table wells; (2) calculations of the fluid flux between nested piezometers, using the Darcy equation and measured values of hydraulic conductivity and...
Geophysics, tectonics and mineral deposits of Africa—Preface
David A. Hastings
1982, Geoexploration (20) 198-199
No abstract available....
Active geologic processes in Barrow Canyon, northeast Chukchi Sea
Stephen Eittreim, Arthur Grantz, Jonathan Greenberg
1982, Marine Geology (50) 61-76
Circulation patterns on the shelf and at the shelf break appear to dominate the Barrow Canyon system. The canyon's shelf portion underlies and is maintained by the Alaska Coastal Current (A.C.C.), which flows northeastward along the coast toward the northeast corner of the broad Chukchi Sea. Offshelf and onshelf advective...
Gas exchange characteristics of the submerged aquatic Crassulacean acid metabolism plant, Isoetes howellii
Jon E. Keeley, G. Bowes
1982, Plant Physiology (70) 1455-1458
The submerged aquatic plant Isoetes howellii Engelmann possesses Crassulacean acid metabolism (CAM) comparable to that known from terrestrial CAM plants. Infrared gas analysis of submerged leaves showed Isoetes was capable of net CO2 uptake in both light and dark. CO2 uptake rates were a function of CO2 levels in the medium. At 2,500 microliters CO2 per liter (gas...
Growth and condition of bluegills in Wisconsin lakes: Effects of population density and lake pH
J.G. Wiener, W.R. Hanneman
1982, Transactions of the American Fisheries Society (111) 761-767
Growth and condition of bluegills Lepomis macrochirus from five acidic lakes (pH 5.1–6.0) and six circumueutral lakes (pH 6.7–7.5) in northern Wisconsin were compared. Although mean condition factors and mean back‐calculated total lengths at ages 1 to 4 varied significantly among lakes, the differences were not related to lake pH....
Adsorption of natural dissolved organic matter at the oxide/water interface
James A. Davis
1982, Geochimica et Cosmochimica Acta (46) 2381-2393
Natural organic matter is readily adsorbed by alumina and kaolinite in the pH range of natural waters. Adsorption occurs by complex formation between surface hydroxyls and the acidic functional groups of the organic matter. Oxides with relatively acidic surface hydroxyls, e.g. silica, do not react strongly with the organic matter....
Susitna Hydroelectric Project: terrestrial environmental workshop and preliminary simulation model
Robert R. Everitt, Nicholas C. Sonntag, Gregory T. Auble, James E. Roelle, William Gazey
1982, Report
The technical feasibility, economic viability, and environmental impacts of a hydroelectric development project in the Susitna River Basin are being studied by Acres American, Inc. on behalf of the Alaska Power Authority. As part of these studies, Acres American recently contracted LGL Alaska Research Associates, Inc. to coordinate the terrestrial...
Aqueous pyrite oxidation and the consequent formation of secondary iron minerals
D. Kirk Nordstrom
J.A. Kittrick, D.A. Fanning, L.R. Hossner, editor(s)
1982, Book chapter, Acid sulfate weathering
No abstract available. ...
Degradation of phenolic contaminants in ground water by anaerobic bacteria: St. Louis Park, Minnesota
G. G. Ehrlich, D.F. Goerlitz, E.M. Godsy, M. F. Hult
1982, Ground Water (20) 703-710
Coal-tar derivatives from a coal-tar distillation and wood-treating plant that operated from 1918 to 1972 at St. Louis Park, Minnesota contaminated the near-surface ground water. Solutions of phenolic compounds and a water-immiscible mixture of polynuclear aromatic compounds accumulated in wetlands near the plant site and entered the aquifer. The concentration...
Technical manual for estimating low-flow characteristics of Pennsylvania streams
Herbert N. Flippo Jr.
1982, Water Resources Bulletin 15
No abstract available....
Organic geochemistry and pore water chemistry of sediments from Mangrove Lake, Bermuda
Patrick G. Hatcher, Bernd R. T. Simoneit, F.T. MacKenzie, A.C. Neumann, D.C. Thorstenson, S.M. Gerchakov
1982, Organic Geochemistry (4) 93-112
Mangrove Lake, Bermuda, is a small coastal, brackish-water lake that has accumulated 14 m of banded, gelatinous, sapropelic sediments in less than 104 yr. Stratigraphic evidence indicates that Mangrove Lake's sedimentary environment has undergone three major depositional changes (peat, freshwater gel, brackish-water gel) as a result of sea level changes. The...
Behavioral interactions of penned red and arctic foxes
D.R. Rudzinski, H.B. Graves, A.B. Sargeant, G.L. Storm
1982, Journal of Wildlife Management (46) 877-884
Expansion of the geographical distribution of red foxes (Vulpes vulpes) into the far north tundra region may lead to competition between arctic (Alopex lagopus) and red foxes for space and resources. Behavioral interactions between red and arctic foxes were evaluated during 9 trials conducted in a 4.05-ha enclosure near Woodworth,...
