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Page 4647, results 116151 - 116175

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Not all publications have extents, not all extents are completely accurate
Changes in the morphometry of Las Vegas Wash and the impact on water quality
Richard A. Roline, James J. Sartoris
1988, Lake and Reservoir Management (4) 135-142
Las Vegas Wash, a natural wash east of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from two sewage treatment plants to Lake Mean. Over 80 percent of the normal discharge of approximately 3.4 m3/s (120 ft3/s) consists of effluent from the City of Las Vegas and...
Recording strong motion studies
Roger D. Borcherdt
1988, Batiment International, Building Research and Practice (16) 87-92
Instruments now permit strong‐motion signals to be recorded over broader band widths, with wider dynamic range and signal resolution and with better data accessibility via computer. These advantages are utilized by the General Earthquake Observation System (GEOS) developed by the United States Geological Survey, by which a microcomputer‐controlled system provides...
Volcanic Rocks
W.W. Wood, L.A. Fernandez
1988, Book chapter, The geology of North America: Geological Society of America
No abstract available. ...
Use of "specific" inhibitors in biogeochemistry and microbial ecology
Ronald S. Oremland, D.G. Capone
1988, Book chapter, Advances in microbial ecology
The above statement, although meant to be tongue in cheek, contains an essential truism: all work with inhibitors is inherently suspect. This fact has been known by biochemists for some time. However, use of chemical inhibitors of enzymic systems and membranes continues to be a common approach taken toward unraveling...
Determinants of breeding distributions of ducks
Douglas H. Johnson, J.W. Grier
1988, Wildlife Monographs (100)
The settling of breeding habitat by migratory waterfowl is a topic of both theoretical and practical interest. We use the results of surveys conducted annually during 1955-81 in major breeding areas to examine the factors that affect the distributions of 10 common North American duck species. Three patterns of settling...
Hydrologic reconnaissance of the Chilkat River basin, Southeast Alaska; with special reference to the Alaska Chilkat Bald Eagle Preserve
E. F. Bugliosi
1988, Water-Resources Investigations Report 88-4023
The Chilkat River Basin of Alaska is characterized by glaciers, highly dissected mountains with steep-gradient streams, and braided rivers in broad, alluvium-filled valleys. Orographic effects and a wide seasonal range in temperature cause variations in the amount and distribution of precipitation, and thus in the resulting runoff and streamflow. Seeps...
The Whittier Narrows, California earthquake of October 1, 1987: Preliminary assessment of strong ground motion records
A. G. Brady, E. C. Etheredge, R. L. Porcella
1988, Earthquake Spectra (4) 55-74
More than 250 strong-motion accelerograph stations were triggered by the Whittier Narrows, California, earthquake of 1 October 1987. Considering the number of multichannel structural stations in the area of strong shaking, this set of records is one of the more significant in history. Three networks, operated by the U.S. Geological...
Taolin Zn-Pb-fluorite deposit, People's Republic of China: An example of some problems in fluid inclusion research on mineral deposits
E. Roedder, K.W. Howard
1988, Journal of the Geological Society (145) 163-174
The large Taolin zinc–lead–fluorite deposit in the People’s Republic of China was discovered 28 years ago, but whether its genetic affiliation is Mississippi Valley-type, epithermal, or mesothermal has remained uncertain. Both the ore and gangue (cherty to coarse quartz, plus barite, chlorite and calcite) occur as open space filling in...
Morphology of glochidia of Lampsilis higginsi (Bivalvia: Unionidae) compared with three related species
D. L. Waller, L. E. Holland Bartels, L. G. Mitchell
1988, American Malacological Bulletin (6) 39-43
Glochidia of the endangered unionid mussel Lampsilis higginsi (Lea) are morphologically similar to those of several other species in the upper Mississippi River. Life history details, such as the timing of reproduction and identity of host fish, can be readily studied if the glochidia of L. higginsi...
The Detroit River, Michigan: an ecological profile
Bruce A. Manny, Thomas A. Edsall, Eugene Jaworski
1988, Biological Report 85(7.17)
A part of the connecting channel system between Lake Huron and Lake Erie, the Detroit River forms an integral link between the two lakes for both humans and biological resources such as fish, nutrients, and plant detritus. This profile summarizes existing scientific information on the ecological structure and functioning...
Active high-resolution seismic tomography of compressional wave velocity and attenuation structure at Medicine Lake Volcano, northern California Cascade Range
J.R. Evans, J.J. Zucca
1988, Journal of Geophysical Research Solid Earth (93) 15016-15036
We determine compressional wave velocity and attenuation structures for the upper crust beneath Medicine Lake volcano in northeast California using a high-resolution active source seismic tomography method. Medicine Lake volcano is a basalt through rhyolite shield volcano of the Cascade Range, lying east of the range axis. The Pg wave from eight...
Petrology and hydrothermal mineralogy of US Geological Survey Newberry: 2. Drill core from Newberry Caldera, Oregon
T. E. C. Keith, K.E. Bargar
1988, Journal of Geophysical Research Solid Earth (93) 10174-10190
U.S. Geological Survey Newberry 2 was drilled to a depth of 932 m within Newberry caldera. The bottom-hole temperature of 265°C is the highest reported temperature of any drill hole in the Cascades region of the United States. The upper part of the stratigraphic section penetrated by Newberry 2 consists...
Two-dimensional Lagrangian simulation of suspended sediment
David H. Schoellhamer
1988, Journal of Hydraulic Engineering (114) 1192-1209
A two‐dimensional laterally averaged model for suspended sediment transport in steady gradually varied flow that is based on the Lagrangian reference frame is presented. The layered Lagrangian transport model (LLTM) for suspended sediment performs laterally averaged Lagrangian calculations with steady or unsteady upstream boundary concentration. The elevations of nearly horizontal...