Conference Papers
Science Quality and Integrity
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Organochlorine poisoning of herons Organochlorine poisoning of herons
Over a period of years interested individuals have submitted many dead or moribund herons of various species to our laboratory to learn whether the birds had been affected by diseases or organochlorine poisoning. Residue concentrations in carcasses of birds and mammals are considered the best measure of sublethal exposure, whereas residues in brains are best to use for diagnosing death...
Authors
Harry M. Ohlendorf, Douglas M. Swineford, Louis N. Locke
A stratified-cluster sampling procedure applied to a wildland vegetation inventory using remote sensing A stratified-cluster sampling procedure applied to a wildland vegetation inventory using remote sensing
No abstract available.
Authors
W. G. Rohde, W. A. Miller, K. G. Bonner, E. Hertz, M. F. Engel
Forest stand classification in western Washington using Landsat and computer-based resource data Forest stand classification in western Washington using Landsat and computer-based resource data
No abstract available.
Authors
G. R. Johnson, E. W. Barthmaier, T. W. D. Gregg, R. E. Aulds
Altitude-age relationships of the lunar maria Altitude-age relationships of the lunar maria
Altitudes and relative ages of mare surface units were compared to test if a systematic correlation in height of lava eruption surfaces and age might reflect a corresponding increase in depth of the magma chamber with time; in addition the altitudes were studied to shed light on the time and place of warping of mare surfaces. The laser altimeter data from the Apollo missions and relative...
Authors
Baerbel K. Lucchitta, J. M. Boyce
Biogenic and thermogenic gas in gas-charged sediment of Norton Sound, Alaska Biogenic and thermogenic gas in gas-charged sediment of Norton Sound, Alaska
Chemical and isotopic compositions of sediment gas from Norton Sound have been determined for near-surface, gas-charged sediments at two sites identified in acoustic profiles and bottom observations. At one site air-driven vibracorer penetrated sediment saturated with methane. The isotopic value suggests that the methane originated from active biological processes operating on peat in...
Authors
Keith A. Kvenvolden, C.H. Nelson, D.R. Thor, Matthew C. Larsen, G.D. Redden, J. B. Rapp, D. J. Des Marais
Digital image processing system For Landsat 3 Digital image processing system For Landsat 3
The Department of Interior (DOI) and the National Aeronautics and Space Administration (NASA) have entered into a joint program to provide a digital image processing system in support of the Landsat 3 mission. NASA will provide the data reception and pre-processing facilities, while the DOI provides the production image processing system that generates film products and computer...
Authors
George Harris
Excretion of the lampricide Bayer 73 by rainbow trout Excretion of the lampricide Bayer 73 by rainbow trout
Urinary excretion of the 2-aminoethanol salt of 2′, 5-dichloro-4′-nitrosalicylanilide (Bayer 73) in rainbow trout (Salmo gairdneri) was measured after exposure of the trout to Bayer 73 and also after intraperitoneal (ip) injection of the lampricide. Fish exposed to 0.05 mg/litre of Bayer 73 for 12 h quickly began to excrete residues in the urine. The largest amount of Bayer 73 was...
Authors
J. L. Allen, V. K. Dawson, J. B. Hunn
An erythroleukemic-like disease in fish An erythroleukemic-like disease in fish
No abstract available
Authors
J.R. MacMillan, M. Landolt, D. Mulcahy
b values and ω−γ seismic source models: Implications for tectonic stress variations along active crustal fault zones and the estimation of high-frequency strong ground motion b values and ω−γ seismic source models: Implications for tectonic stress variations along active crustal fault zones and the estimation of high-frequency strong ground motion
In this study the tectonic stress along active crustal fault zones is taken to be of the form , where is the average tectonic stress at depth y and Δσp(x, y) is a seismologically observable, essentially random function of both fault plane coordinates; the stress differences arising in the course of crustal faulting are derived from Δσp(x, y). Empirically known frequency of occurrence...
Authors
Thomas C. Hanks
Better utilization of ground water in the Piedmont and mountain region of the southeast Better utilization of ground water in the Piedmont and mountain region of the southeast
The development of water supplies for domestic consumption, and for those commercial and industrial uses requiring relatively pure water, has followed a pattern in the Piedmont and mountain areas of the southeast similar to that in most other humid areas. The first settlers utilized seepage springs on hillsides. Such springs occur along steep slopes where the water table intersects the...
Authors
Ralph C. Heath
Correlations between residues of dichlorodiphenylethane, polychlorinated biphenyl, and dieldrin in the serum and tissues of mallard ducks (Anas platyrhynchos) Correlations between residues of dichlorodiphenylethane, polychlorinated biphenyl, and dieldrin in the serum and tissues of mallard ducks (Anas platyrhynchos)
No abstract available.
Authors
Milton Friend, M. A. Haegle, D. L. Meeker, Rick Hudson, C. H. Baer