Sedimentary response to intrabasinal salt tectonism in the Upper Triassic Chinle Formation, Paradox Basin, Utah
Joseph E. Hazel Jr.
1994, Bulletin 2000-F
Physical, chemical, and biological data for detailed study of irrigation drainage in the Uncompahgre Project area and in the Grand Valley, west-central Colorado, 1991-92
D. L. Butler, W. G. Wright, D.A. Hahn, R. P. Krueger, B. C. Osmundson
1994, Open-File Report 94-110
Because of concerns about potential effects of irrigation drainage on fish and wildlife resources and on human health, the U.S. Department of the Interior initiated a program in 1985 to assess water-quality problems associated with Federal irrigation projects in the Western United States. Physical, chemical, and biological data were collected...
Convective heat discharge of Wood River group of springs in the vicinity of Crater Lake, Oregon
Manuel Nathenson, Robert H. Mariner, J. Michael Thompson
1994, Book chapter, Restructuring the geothermal industry
Data sets for spring and stream chemistry are combined to estimate convective heat discharge and discharge anomalous amounts of sodium and chloride for the Wood River group of springs south of Crater Lake. The best estimate of heat discharge is 87 MWt based on chloride inventory; this value is 3-5...
A summary of water-resources activities of the U.S. Geological Survey in Iowa, fiscal year 1994
R.C. Buchmiller
1994, Open-File Report 94-88
Water-resources programs and activities of the U.S. Geological Survey in Iowa consist principally of hydrologic data collection and investigative studies that address water-resource issues. The work is supported by direct Federal funding, by transfer of funds from other Federal agencies, and by joint-funding agreements with State or local agencies. The Iowa...
National Water-Quality Assessment Program--Southern High Plains, Texas and New Mexico
Dennis G. Woodward, Cecilia G. Diniz
1994, Open-File Report 94-71
BACKGROUND In 1991, the U.S. Geological Survey (USGS) began a National Water-Quality Assessment (NAWQA) program. The long-term goals of the NAWQA program are to describe the status of, and trends in, the quality of a large, representative part of the Nation's surface- and ground-water resources and to identify the major natural...
The relationship between the Porco, Bolivia, Ag-Zn-Pb-Sn deposit and the Porco caldera
C. G. Cunningham, Hugo Aparicio N., Fernando Murillo S., Nestor C. Jimenez, J. L. Lizeca B., E.H. McKee, G. E. Ericksen, Franz Tavera V.
1994, Open-File Report 94-238
Quality of ground water in Harrison County, Mississippi, June - July 1993
L. J. Slack, W. T. Oakley, C. G. O'Hara, L. M. Cooper
1994, Open-File Report 94-125
During June and July 1993, the U.S. Geological Survey analyzed water from 145 wells in Harrison County, southeastern Mississippi. The wells are completed in five major geologic units: the Citronelle, Graham Ferry, Pascagoula, and Hattiesburg Formations and the Catahoula Sandstone. The wells ranged from 74 to 2,410 feet in depth....
Bathymetry of Puna Ridge, Kilauea Volcano, Hawaii
D.A. Clague, K.A. Hon, J. L. Anderson, W.W. Chadwick, C.G. Fox
1994, Miscellaneous Field Studies Map 2237
No abstract available. ...
Studies of the San Francisco Bay, California, estuarine ecosystem: Pilot regional monitoring program results, 1993
J.M. Caffrey, B.E. Cole, J. E. Cloern, J. Rudek, A.C. Tyler, A.D. Jassby
1994, Open-File Report 94-82
Water samples were collected in the San Francisco Bay estuary during 22 cruises from January through December 1993. Conductivity, temperature, light attenuation, turbidity, oxygen, and in-vivo fluorescence were measured 1ongitudinally and vertically in the main channel of the estuary from south of the Dumbarton Bridge in the southern part of...
Long-term ecological research in Loch Vale Watershed, Rocky Mountain National Park. Annual Report, 1994
E.J. Allstott, Jill Baron, B. Newkirk
1994, Report
No abstract available....
Preliminary Quaternary geologic maps of Santa Clara Valley, Santa Clara, Alameda, and San Mateo counties, California: A digital database
Edward J. Helley, R. W. Graymer, G. A. Phelps, P. K. Showalter, C. M. Wentworth
1994, Open-File Report 94-231
No abstract available....
Creating urban data using AVHRR thermal-infrared data
B. E. Wright
1994, Open-File Report 94-401
Isotopic ages and stratigraphy of Cenozoic rocks of the Marysvale volcanic field and adjacent areas, west-central Utah
Peter D. Rowley, H. H. Mehnert, C. W. Naeser, L.W. Snee, C. G. Cunningham, T. A. Steven, J. J. Anderson, E.G. Sable, R.E. Anderson
1994, Bulletin 2071
Analytical results from a greenhouse study of sagebrush grown in soils containing Carlin ore
K. C. Stewart, D. M. McKown, D.L. Fey
1994, Open-File Report 94-237
Connecting to the Internet
E.J. Christian
1994, Open-File Report 94-570
Branch of Petroleum Geology bibliography 1993
S. A. Oscarson (compiler)
1994, Open-File Report 94-206
Geology and lithogeochemistry of the Ren gold prospect, Elko County, Nevada - the role of rock sampling in exploration for deep Carlin-type deposits
George V. Albino
1994, Journal of Geochemical Exploration (51) 37-58
The Ren gold prospect, Elko County, Nevada, is in the northern part of the Carlin trend, two kilometers northwest of the recently-discovered, high-grade Purple Vein deposit. The Ren area is underlain mainly by Paleozoic sedimentary rocks, consisting of limestone, calcareous siltstone, and mudstone of the eastern (carbonate) assemblage, overlain in...
Methods for measuring discharge under ice cover
J.F. Walker
1994, Journal of Hydraulic Engineering (120) 1327-1336
Streamflow-velocity adjustment coefficients at several common vertical positions varied significantly from station to station and from measurement to measurement at some stations. The ice-cover roughness was the primary factor affecting the profiles at most stations. Several discharge-measurement procedures were developed using one-half of the data collected, and the accuracy of...
Duration of protection against Aeromonas salmonicida brook trout immunostimulated with glucan or chitosan by injection or immersion
D. P. Anderson
1994, Progressive Fish-Culturist (56) 258-261
Brook trout (Salvelinus fontinalis) were given the immunostimulants glucan or chitosan by single injections or by a 30‐min immersion to induce protection against the fish disease furunculosis. At 1, 2, 3, 7, 14, 21, and 28 d after immunostimulation, sublots from these groups were challenged by a 1‐min bath exposure...
Maps showing gravity and aeromagnetic anomalies in the Butte 1° x 2° quadrangle, Montana
W. F. Hanna, J. H. Hassemer, J. E. Elliott, C. A. Wallace, S. L. Snyder
1994, IMAP 2050-I
No abstract available....
Geologic hazards in the Hells Canyon region of Idaho, Oregon, and Washington
T.L. Vallier
1994, Open-File Report 94-213
Uranium(VI) adsorption to ferrihydrite: Application of a surface complexation model
T.D. Waite, J.A. Davis, T.E. Payne, G.A. Waychunas, N. Xu
1994, Geochimica et Cosmochimica Acta (58) 5465-5478
A study of U(VI) adsorption by ferrihydrite was conducted over a wide range of U(VI) concentrations, pH, and at two partial pressures of carbon dioxide. A two-site (strong- and weak-affinity sites, FesOH and FewOH, respectively) surface complexation model was able to describe the experimental data well over a wide range...
Indicators of sewage contamination in sediments beneath a deep-ocean dump site off New York
Michael H. Bothner, H. Takada, I.T. Knight, R. T. Hill, B. Butman, J.W. Farrington, R.R. Colwell, J. F. Grassle
1994, Marine Environmental Research (38) 43-59
The world's largest discharge of municipal sewage sludge to surface waters of the deep sea has caused measurable changes in the concentration of sludge indicators in sea-floor sediments, in a spatial pattern which agrees with the predictions of a recent sludge deposition model. Silver, linear alkylbenzenes, coprostanol, and spores of...
Variations in rupture process with recurrence interval in a repeated small earthquake
J.E. Vidale, W.L. Ellsworth, A. Cole, Chris Marone
1994, Nature (368) 624-626
In theory and in laboratory experiments, friction on sliding surfaces such as rock, glass and metal increases with time since the previous episode of slip. This time dependence is a central pillar of the friction laws widely used to model earthquake phenomena. On natural faults, other properties, such as rupture...
Model for dolomite formation in northwest Florida
C.R. Cooper, J.A. Tindall
1994, Journal of Hydrology (157) 367-391
Petrographic methods are used to examine the nature of the Floridan post-Oligocene unconformity and diagenetic responses in the associated carbonate units. The study addresses the depositional environment and the character of sediments associated with the unconformity, types and timing of diagenetic changes, and mode of dolomitization for the Suwannee Limestone...