Robert T. Milhous
1987, Journal of Water Resources Planning and Management (113) 443-444
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateB.M. Troutman, G. P. Williams
1987, Book chapter, Use and abuse of statistical methods in the earth sciences
No abstract available. ...
Water Resources Division, U.S. Geological Survey
1987, Report
This leaflet, one of a series on the river basins of the United States, contains information on the Colorado River Basin, including a brief early history, a description of the physical characteristics, and other statistical data. At present, other river basins included in the series are The Columbia, The Delaware,...
James A. Sedgwick, Fritz L. Knopf
1987, Journal of Wildlife Management (51) 230-237
We studied avian habitat relationships and the impact of grazing on breeding densities of selected migratory birds in a plains cottonwood (Populus sargentii) bottomland in northeastern Colorado. Five 16-ha plots served as controls and 5 were fenced and fall-grazed October-November 1982-84 following a season of pre-treatment study in the spring...
Michael D. Samuel, Edward O. Garton
1987, Journal of Wildlife Management (51) 254-257
The amount of time an animal spends in particular areas is an important aspect of estimating its home range and activity pattern. Calculations of home range using the harmonic mean can be modified to reflect the amount of time or the type of activity observed at each location. The...
R. Bruce Bury, Paul Stephen Corn
1987, Journal of Wildlife Management (51) 112-119
We operated pitfall arrays with 5-m drift fences at 30 stands in western Oregon and Washington for 180 days. Pitfall arrays had a pronounced removal effect on small mammals (but not on the herpetofauna) during the 1st 60 days of trapping. Conventional short (10-day) trapping periods were only adequate to...
Thomas J. Stohlgren, David J. Parsons
1987, Atmospheric Environment (21) 1369-1374
Sequoia National Park has monitored wet deposition chemistry in conjunction with the National Atmospheric Deposition Program and National Trends Network (NADP/NTN), on a weekly basis since July, 1980. Annual deposition of H, NO3 and SO4 (0.045, 3.6, and 3.9 kg ha−1 a−1, respectively) is relatively low compared to that measured...
George R. Aiken
I.H. Suffet, Murugan Malaiyandi, editor(s)
1987, Book chapter, Organic pollutants in water: sampling, analysis, and toxicity testing
Adsorption on synthetic macroporous resins, such as the Amberlite XAD series and Duolite A-7, is routinely used to isolate and concentrate organic acids from forge volumes of water. Samples as large as 24,500 L have been processed on site by using these resins. Two established extraction schemes using XAD-8 and...
Water Resources Division, U.S. Geological Survey
1987, Report
This index is designed to inform map users of the various series of maps produced and distributed by the U.S. Geological Survey....
C. E. Rostad, W. E. Pereira
Robert C. Averett, editor(s)
1987, Book chapter, Chemical quality of water and the hydrologic cycle
No abstract available. ...
R.J. Scholefield
1987, Technical Report 50
Abstract not submitted to date...
Water Resources Division, U.S. Geological Survey
1987, Report
No abstract available....
N. C. Parker, M. A. Suttle
1987, Aquacultural Engineering (6) 97-110
Water flow rates were measured in airlift pumps 3·75-30 cm in diameter to develop performance data that might be useful to aquaculturists. Flows were determined when submergence of airlifts was 100% and when the center-line of the discharge was between 12·5 cm above and 5 cm below the water surface....
Scott A. Hatch
1987, The Auk (104) 450-461
I studied the timing and frequency of copulation in mated pairs and the occurrence of extra-pair copulation (EPC) among Northern Fulmars (Fulmarus glacialis) for 2 yr. Copulation peaked 24 days before laying, a few days before females departed on a prelaying exodus of about 3 weeks. I estimated that females...
J. Pojeta Jr., B.S. Norford
1987, Journal of Paleontology (61) 508-520
The pelecypod genera Slava and Rhombopteria are reported for the first time from Canada, where they occur in a limestone concretion within the Cape Phillips Formation, Cornwallis Island, Arctic Archipelago. These genera are characteristic of Silurian rocks in Bohemia, Czechoslovakia. Graptolites from the same concretion indicate the Monograptus ludensis Zone...
S.J. Williams, E.P. Meisburger
1987, Conference Paper
During investigations of the regional geologic framework of Long Island shelf by means of seismic-reflection profiles and cores, Williams (1976) identified a rather limited area on the shelf off Jones Beach where Upper Cretaceous or early Tertiary age glauconite-rich lithosomes subcrop at the seabed, seaward of the shoreface. A suite...
R. Raymond Jr., C. C. Cameron, A.D. Cohen
1987, International Journal of Coal Geology (8) 175-187
The Heath, Great Cranberry Island, Maine, offers a unique locality for studying lateral and vertical relationships between radically different peat types within 1 km2. The majority of The Heath is a Sphagnum moss-dominated raised bog. Surrounding the raised bog is a swamp/marsh complex...
Leslie F. Ruppert
1987, Scanning Micros (1) 63-72
Cathodoluminescence (CL), the emission of visible light during electron bombardment, was first used in sandstone petrology in the mid-1960's. CL techniques are especially useful for determining the origin and source of quartz and feldspar, two of the most common constituents in clastic rocks. CL properties of both minerals are dependent...
Chintu Lai, Raymond W. Schaffranek, Robert A. Baltzer
1987, Conference Paper
A study is in progress to identify the relative significance, effects, and benefits attributable to the use of one-dimensional, unsteady, open-channel, flow-simulation models employing a variety of nonhomogeneous terms in their equation formulations. Nonhomogeneous terms being analyzed include those representing bed slope, frictional resistance, nonprismatic channel geometry, lateral flow, and...
Richard B. Wanty, J. R. Chatcham, D. Langmuir
1987, Bulletin de Mineralogie (110) 209-226
Ground-water samples from 41 wells penetrating basal Oakville sandstone (Miocene) in S Texas were chemically analysed to identify chemical changes related to nearby U orebodies. The coverage included a 240 km2 area which contains several fault-related U deposits. Factors affecting the hydrochemistry include: 1) relatively high permeabilities of buried fluvial-channel...
Cheng-lung Chen
1987, Conference Paper
The role that the velocity-distribution correction factor plays in the determination of the flood discharge and corresponding flow depth behind a partially breached dam is investigated. Assumption of a uniformly progressive flow for an established dam-break flood in a rectangular channel of infinite extent leads to the formulation of a...
Harvey M. Kelsey, Roland Lamberson, Mary Ann Madej
1987, Water Resources Research (2) 1738-1750
We develop a stochastic model for the transport of stored sediment down a river channel. The model is based on probabilities of transition of particles among four different sediment storage reservoirs, called active (often mobilized), semiactive, inactive, and stable (hardly ever mobilized). The probabilities are derived from computed sediment residence...
M. M. Donato
1987, Geological Society of America Bulletin (98) 448-464
The Marble Mountain terrane of northern California constitutes a metamorphosed ophiolitic tectonic mélange occupying the lowest structural levels of the western Paleozoic and Triassic belt of the Klamath Mountains province. On the basis of lithology and structural position, it probably represents the metamorphosed equivalent of the Rattlesnake Creek terrane. The...
J.A. Minkin, E. C. T. Chao, Herma Blank, F.T. Dulong
1987, Scanning Micros (1) 503-513
The PIXE (proton-induced X-ray emission) microprobe can be used for nondestructive, in-situ analyses of areas as small as those analyzed by the electron microprobe, and has a sensitivity of detection as much as two orders of magnitude better than the electron microprobe. Preliminary studies demonstrated that PIXE provides a capability...
William R. Normark, Janet L. Morton, Stephanie L. Ross
1987, Journal of Geophysical Research B: Solid Earth (92) 11283-11290
In September 1984, the research submersible Alvin provided direct observations of three major hydrothermal vent areas along the southernmost segment of the Juan de Fuca Ridge (JFR). The submersible operations focused on specific volcanologie, structural, and hydrothermal problems that had been identified during the preceding 4 years of photographic, dredging,...