A policy evaluation tool: Management of a multiaquifer system using controlled stream recharge
Wesley R. Danskin, Steven M. Gorelick
1985, Water Resources Research (21) 1731-1747
A model for the optimal allocation of water resources was developed for a multiaquifer groundwater and surface water system near Livermore, California. The complex groundwater system was analyzed using a transient, quasi-three-dimensional model that considers the nonlinear behavior of the unconfined aquifer. The surface water system consists of a reservoir...
Chloride flux out of Yellowstone National Park
D. R. Norton, I. Friedman
1985, Journal of Volcanology and Geothermal Research (26) 231-250
Monitoring of the chloride concentration, electrical conductivity, and discharge was carried out for the four major rivers of Yellowstone National Park from September 1982 to January 1984. Chloride flux out of the Park was determined from the measured values of chloride concentration and discharge. The annual chloride flux from the...
Middle Proterozoic uplift events in the Dunbar dome of northeastern Wisconsin, USA
Z. E. Peterman, P.K. Sims, R. E. Zartman, K. J. Schulz
1985, Contributions to Mineralogy and Petrology (91) 138-150
Isotopic ages of granitic and metamorphic rocks exposed in the Dunbar structural dome of northeastern Wisconsin identify a protracted series of tectonic and "hydrothermal" events that culminated in major regional uplift during Middle Proterozoic (Keweenawan; ca 1,100 Ma) continental rifting and volcanism. The major rock-forming events and the structural development...
Cemented horizon in subarctic Alaskan sand dunes: Discussion and reply
J. P. Galloway, E. A. Koster, T. D. Hamilton, George W. Cox
1985, American Journal of Science (285) 186-191
No abstract available....
A comparative study of stream water and stream sediment as geochemical exploration media in the Rio Tanama porphyry copper district, Puerto Rico
R. E. Learned, T. T. Chao, R. F. Sanzolone
1985, Journal of Geochemical Exploration (24) 175-195
To test the relative effectiveness of stream water and sediment as geochemical exploration media in the Rio Tanama porphyry copper district of Puerto Rico, we collected and subsequently analyzed samples of water and sediment from 29 sites in the rivers and tributaries of the district. Copper, Mo, Pb, Zn, SO42−,...
Overview of hydrologic-data collection by the US Geological Survey in Oklahoma.
L.D. Hauth
1985, Oklahoma Geology Notes (45) 149-161
The US Geological Survey (USGS) collects hydrologic data from 1332 stream, lake, and ground-water sites in Oklahoma. Information on the quantity of water from a network of 123 streamflow stations, 30 lakes, 42 peak-flow stations, three low-flow stations, and on the quality of water from 40 stream locations is published...
Estimating neighborhood variability with a binary comparison matrix.
D.L. Murphy
1985, Photogrammetric Engineering and Remote Sensing (51) 667-674
A technique which utilizes a binary comparison matrix has been developed to implement a neighborhood function for a raster format data base. The technique assigns an index value to the center pixel of 3- by 3-pixel neighborhoods. The binary comparison matrix provides additional information not found in two other neighborhood...
U-Pb isochron age and Pb isotope systematics of the Golden Fleece vein; implications for the relationship of mineralization to the Lake City caldera, western San Juan Mountains, Colorado
K. Hon, K.R. Ludwig, K. R. Simmons, J. F. Slack, R. I. Grauch
1985, Economic Geology (80) 410-417
A U-Pb isochron age of 27.5 + or - 0.5 m.y. has been determined for the Golden Fleece vein, southwestern Colorado, which contains an assemblage of pitchblende and gold-silver tellurides unique within the Lake City area. Initial Pb isotope ratios of ore samples from the vein ( 206 Pb/ 204 Pb = 19.08-19.58; 207 Pb/ 204 Pb =...
Magadi-type chert, indicator of a lacustrine environment in the Middle Eocene McBean formation, South Carolina.
B. B. Houser
1985, Southeastern Geology (25) 185-197
Magadi-type chert (chert derived from magadiite) occurs in the basal part of the formation at three localities in Orangeburg and Calhoun Counties. These occurrences imply that the basal part of the McBean formation was deposited here in an alkaline lake with a high silica content. Formation and filling of the...
EVALUATION OF THE EFFECTS OF WEATHERING ON A 50-YEAR OLD RETORTED OIL-SHALE WASTE PILE, RULISON EXPERIMENTAL RETORT, COLORADO.
Michele L. Tuttle, Walter E. Dean, Daniel J. Ackerman
Gary James H., editor(s)
1985, Conference Paper, Oil Shale Symposium Proceedings
An oil-shale mine and experimental retort were operated near Rulison, Colorado by the U. S. Bureau of Mines from 1926 to 1929. Samples from seven drill cores from a retorted oil-shale waste pile were analyzed to determine 1) the chemical and mineral composition of the retorted oil shale and 2)...
Striped bass fingerling mortality involves multiple factors
R. L. Herman
1985, Fish Health News (14) iii-v
Three-dimensional trend mapping from wire-line logs
J.H. Doveton, Z. Ke-an
1985, Journal of the International Association for Mathematical Geology (17) 485
Mapping of lithofacies and porosities of stratigraphic units is complicated because these properties vary in three dimensions. The method of moments was proposed by Krumbein and Libby (1957) as a technique to aid in resolving this problem. Moments are easily computed from wireline logs and are simple statistics which summarize...
USGS Telecommunications Responding to Change
James L. Hott
1985, Journal of Surveying Engineering (111) 14-22
The telecommunications industry is undergoing tremendous change due to the court ordered breakup of the monopoly once enjoyed by American Telephone & Telegraph (AT&T). This action has resulted in a plethora of new services and products in all of the communications fields, including traditional voice and data. The new products...
Multisample conversion of water to hydrogen by zinc for stable isotope determination
C. Kendall, T.B. Coplen
1985, Analytical Chemistry (57) 1437-1440
Two techniques for the conversion of water to hydrogen for stable isotope ratio determination have been developed that are especially suited for automated multisample analysis. Both procedures involve reaction of zinc shot with a water sample at 450 ??C. in one method designed for water samples in bottles, the water...
Low-temperature molar heat capacities and entropies of MnO2 (pyrolusite), Mn3O4 (hausmanite), and Mn2O3 (bixbyite)
R. A. Robie, B. S. Hemingway
1985, Journal of Chemical Thermodynamics (17) 165-181
Pyrolusite (MnO2), hausmanite (Mn3O4), and bixbyite (Mn2O3), are important ore minerals of manganese and accurate values for their thermodynamic properties are desirable to understand better the {p(O2), T} conditions of their formation. To provide accurate values for the entropies of these important manganese minerals, we have measured their heat capacities...
Variations in tilt rate and harmonic tremor amplitude during the January-August 1983 east rift eruptions of Kilauea Volcano, Hawaii
J.J. Dvorak, A.T. Okamura
1985, Journal of Volcanology and Geothermal Research (25) 249-258
During January-August 1983, a network of telemetered tiltmeters and seismometers recorded detailed temporal changes associated with seven major eruptive phases along the east rift of Kilauea Volcano, Hawaii. Each eruptive phase was accompanied by subsidence of the summit region and followed by reinflation of the summit to approximately the same...
Trondhjemite and metamorphosed quartz keratophyre tuff of the Ammonoosuc volcanics (Ordovician), western New Hampshire and adjacent Vermont and Massachusetts
G. W. Leo
1985, Geological Society of America Bulletin (96) 1493-1507
The Ammonoosuc Volcanics and equivalent rocks of Ordovician age are exposed in the Oliverian domes along the Bronson Hill anti-clinorium (BHA) between northern New Hampshire and southern Connecticut. In western New Hampshire and adjacent Vermont and Massachusetts, the Ammonoosuc lithology consists of a...
Changes in drilling density and discovery rates through time
D.R. Collins
1985, Journal of the International Association for Mathematical Geology (17) 375-393
An alternative to time sequence evaluation of field size distributions is presented. Oil fields are ranked in relation to level of prior exploration in the vicinity of discovery wells. Field size distribution patterns for discoveries at sequential levels of prior exploration are evaluated independently from the time sequence of discoveries...
Lithotectonic assemblages as portrayed on the new bedrock geologic map of Massachusetts
N. L. Hatch Jr., E-An Zen, R. Goldsmith, N. M. Ratcliffe, P. Robinson, R. S. Stanley
1985, American Journal of Science (285) 572-575
No abstract available....
Foreshocks and time-dependent earthquake hazard assessment in southern California
Lucile M. Jones
1985, Bulletin of the Seismological Society of America (75) 1667-1679
The probability that an earthquake in southern California (M ≧ 3.0) will be followed by an earthquake of larger magnitude within 5 days and 10 km (i.e., will be a foreshock) is 6 ± 0.5 per cent (1 S.D.), and is not significantly dependent on the magnitude of the possible...
Geology of the Silsilah ring complex, and associated tin mineralization, Kingdom of Saudi Arabia - a synopsis.
du Bray
1985, American Mineralogist (70) 1075-1086
A tin greisen deposit is associated with an alkali-feldspar granite that forms part of a ring complex at Jabal as Silsilah. The petrological and geochemical characteristics of the Fawwarah alkali-feldspar granite resemble those of granites located elsewhere that are also associated with deposits of Sn, W and rare metals. The...
Federal coal resource occurrence and coal development potential maps of the Upper Nutria 7 1/2-minute quadrangle, McKinley County, New Mexico
Berge Exploration Inc.
1985, Open-File Report 80-41
No abstract available....
Mallard recruitment in the agricultural environment of North Dakota
L.M. Cowardin, D.S. Gilmer, Charles W. Shaiffer
1985, Wildlife Monographs (92) 3-37
Recruitment of a mallard (Anas platyrhynchos) population was assessed on a 10,041-km2 study area in central North Dakota during 1977-80. We equipped 338 hens with radio transmitters and monitored them during the breeding season. Two hundred thirty-five of these hens furnished data reported here. Habitat use, nest site selection, fate...
Genetics of sockeye salmon in Katmai National Park and Preserve, Alaska
R.L. Wilmot, C. V. Burger
1985, Report
No abstract available ...
STREAMFLOW LOSSES, CONSEQUENT FLOW THROUGH A THICK UNSATURATED ZONE, AND RECHARGE TO AN UNCONFINED AQUIFER.
J.R. Marie
1985, Conference Paper
Two experiments were conducted in conjunction with a 23-day aquifer test made in south-central Arizona to determine (1) water loss from a natural channel and (2) flow through a 330-foot-thick unsaturated zone overlying an unconfined aquifer. The experiments provided control for the aquifer test plus results relative to arid land...
