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Page 3173, results 79301 - 79325

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Not all publications have extents, not all extents are completely accurate
Magnetic and GPR surveys of a former munitions foundry site at the Denver Federal Center
David L. Campbell, Shay Beanland, Jeffrey E. Lucius, Michael H. Powers
2000, Book, Proceedings of the Symposium on the Application of Geophysics to Environmental and Engineering Problems (SAGEEP)
We made magnetometer and ground penetrating radar (GPR) surveys over part of the foundation of a World War II-era foundry located on the Denver Federal Center. The site contains a number of highly magnetic source bodies, concrete foundation walls, and underground openings, buried under a clay cap. The cap is...
Diversity of anaerobic halophilic microorganisms
Aharon Oren, Ronald S. Oremland
2000, Proceedings of SPIE (4137) 96-105
Life in the presence of high salt concentrations is compatible with life in the absence of oxygen. Halophilic and halotolerant anaerobic prokaryotes are found both in the archaeal and in the bacterial domain, and they display a great metabolic diversity. Many of the representatives of the Halobacteriales (Archaea), which are generally considered...
National vegetation mapping for fire applications
Donald O. Ohlen, Denise M. Akob, R.E. Burgan
2000, Conference Paper, Crossing the millennium—Integrating spatial technologies and ecological principles for a new age in fire management
No abstract available....
Data and applications for study of the water cycle in Africa
James Verdin
2000, Conference Paper
There are a number data set development, data dissemination, and applications activities at the U.S. Geological Survey (USGS) that contribute to the study of the water cycle in Africa. Some of these stem from global change research initiatives, while others are the result of technical assistance provided to international...
Accounting for site effects in probabilistic seismic hazard analyses of southern California: Overview of the SCEC Phase III Report
Edward H. Field, SCEC Phase III Working Group
2000, Bulletin of the Seismological Society of America (90) S1-S31
This article presents an overview of the Southern California Earthquake Center (SCEC) Phase-III effort to determine the extent to which probabilistic seismic hazard analysis (PSHA) can be improved by accounting for site effects. The contributions made in this endeavor are represented in the various articles that compose this special issue...
Seafloor Rocks and Sediments of the Continental Shelf From Monterey Bay to Point Sur, California
Stephen L. Eittreim, Roberto J. Anima, Andrew J. Stevenson, Florence L. Wong
2000, Miscellaneous Field Studies Map 2345
Introduction Acoustic swath mapping of the greater Monterey Bay area continental shelf from Point Ano Nuevo to Point Sur reveals complex patterns of rock outcrops on the shelf, and coarse sand bodies that occur in distinct depressions on the inner and mid-shelves. This publication portrays the seafloor components in a 36-...
USGS mineral deposit models
William D. Heran
D. B. Stoeser, editor(s)
2000, Data Series 64
This CD-ROM publication is a compilation of 29 previously published mineral deposit model and related reports of the USGS. It in part reflects a history of mineral deposit model development within the USGS. Model types presented include descriptive, grade-tonnage, geoenvironmental, and geophysical. These models generally compile the geologic, geochemical, and...
Water quality in southern Florida: Florida, 1996-98
Benjamin F. McPherson, Ronald L. Miller, Kim H. Haag, Anne Bradner
2000, Circular 1207
Major influences and findings for water quality and biology in southern Florida, including the Everglades, are described and illustrated. Samples were collected to determine total phosphorus, dissolved organic carbon, pesticides, mercury, nitrate, volatile organic carbon compounds, and radon-222. Water-management, agricultural, and land-use practices are discussed. Sixty-three species of fish in...
Multiproxy record of the last interglacial (MIS 5e) off central and northern California, U.S.A., from Ocean Drilling Program sites 1018 and 1020
Richard Z. Poore, H.J. Dowsett, J.A. Barron, L. Heusser, A. C. Ravelo, A. Mix
2000, Professional Paper 1632
Environmental and climatic conditions during the last interglacial (about 125,000 years ago) along the Central and Northern California coastal region are interpreted from study of marine cores recovered by the Ocean Drilling Program at sites 1018 and 1020. Marine microfossil and pollen assemblages, oxygen isotopes in benthic foraminifers, physical properties,...
The North Sakhalin Neogene total petroleum system of eastern Russia
S.J. Lindquist
2000, Open-File Report 99-50-O
The North Sakhalin Basin Province of eastern Russia contains one Total Petroleum System (TPS) ? North Sakhalin Neogene ? with more than 6 BBOE known, ultimately recoverable petroleum (61% gas, 36% oil, 3% condensate). Tertiary rocks in the basin were deposited by the prograding paleo-Amur River system. Marine to continental,...
Simulation of nitrous oxide and nitric oxide emissions from tropical primary forests in the Costa Rican Atlantic Zone
Shu-Guang Liu, William A. Reiners, Michael Keller, Davis S. Schimel
2000, Environmental Modelling and Software (15) 727-743
Nitrous oxide (N2O) and nitric oxide (NO) are important atmospheric trace gases participating in the regulation of global climate and environment. Predictive models on the emissions of N2O and NO emissions from soil into the atmosphere are required. We modified the CENTURY model (Soil Sci. Soc. Am. J., 51...
Migration of the Acadian Orogen and foreland basin across the Northern Appalachians of Maine and adjacent areas
Dwight Culver Bradley, Robert D. Tucker, Daniel R. Lux, Anita G. Harris, D. Colin McGregor
2000, Professional Paper 1624
The timing of Acadian orogenesis in Maine is reassessed, on the basis of a new Silurian-Devonian time scale, new U/Pb and 40Ar/39Ar ages of Acadian plutons, new conodont and palynomorph ages of strata that constrain the age of deformation, and published information. This analysis shows that the Acadian deformation front...
Ground Water in Hawaii
Stephen B. Gingerich, Delwyn S. Oki
2000, Fact Sheet 126-00
Ground water is one of Hawaii's most important natural resources. It is used for drinking water, irrigation, and domestic, commercial, and industrial needs. Ground water provides about 99 percent of Hawaii's domestic water and about 50 percent of all freshwater used in the State. Total ground water pumped in Hawaii...