Graphite sample preparation for AMS in a high pressure and temperature press
Meyer Rubin, Bjorn O. Mysen, Henry Polach
1984, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (5) 272-273
A high pressure-temperature press is used to make target material for accelerator mass spectrometry. Graphite was produced from typical **1**4C samples including oxalic acid and carbonates. Beam strength of **1**2C was generally adequate, but random radioactive contamination by **1**4C made age measurements impractical....
Relationship of late Quaternary fault scarps to subjacent faults, eastern Great Basin, Utah
A. J. Crone, S.T. Harding
1984, Geology (12) 292-295
High-resolution seismic reflection profiles in the Sevier Desert basin in western Utah help clarify the relationship between some late Quaternary fault scarps and subjacent faults. A profile crossing the Clear Lake fault confirms that Holocene(?) displacement has occurred on a high-angle normal fault...
Holocene eruptive activity of El Chichón Volcano, Chiapas, Mexico
Robert I. Tilling, Meyer Rubin, Haraldur Sigurdsson, Steven Carey, Wendell A. Duffield, William I. Rose Jr.
1984, Science (224) 747-749
Geologic and radiometric-age data indicate that El Chichón was frequently and violently active during the Holocene, including eruptive episodes about 600, 1250, and 1700 years ago and several undated, older eruptions. These episodes, involving explosive eruptions of sulfur-rich magma and associated dome-growth processes, were apparently separated by intervals of approximately...
Paleohydrological methods and some examples from Swedish fluvial environments. II - River meanders
G. P. Williams
1984, Geografiska Annaler, Series A (66 A) 89-102
Empirical relations are developed between river-meander features and water-discharge characteristics for 19 reaches along Swedish rivers. In these relations, either average channel width or average radius of curvature of meander arcs can be used to estimate average annual peak discharge and average daily discharge. By accepting certain assumptions,...
Ferromanganese crust resources in the Pacific and Atlantic Oceans
R.F. Commeau, A. Clark, Chad Johnson, F.T. Manheim, P. J. Aruscavage, C.M. Lane
1984, Conference Paper, Oceans '84 : Conference record : Industry, government, education - Designs for the future
Ferromanganese crusts on raised areas of the ocean floor have joined abyssal manganese nodules and hydrothermal sulfides as potential marine resources. Significant volumes of cobalt-rich (about 1% Co) crusts have been identified to date within the US Exclusive Economic Zone (EEZ) in the Central Pacific: in the NW Hawaiian Ridge...
Radon in earth-sheltered structures
E. R. Landa
1984, Underground Space (8) 264-269
Radon concentration in the indoor air of six residential and three non-residential earth-sheltered buildings in eastern Colorado was monitored quarterly over a nine-month period using passive, integrating detectors. Average radon concentrations during the three-month sampling periods ranged from about 1 to 9 pCi/L, although one building, a poorly ventilated storage...
A new occurrence of telluride minerals in South Carolina
H. Bell, R.R. Larson
1984, Southeastern Geology (24) 189-194
A study of drill cores from the Haile gold mine, Lancaster County, South Carolina, has revealed grains containing large amounts of Te with various combinations of Pb, Ag and Au in pyrite. These telluride minerals have so far not been identified. The nearby Brewer mine, on the basis of chemical...
Origin of epigenetic calcite in coal from Antarctica and Ohio based on isotope compositions of oxygen, carbon and strontium
G. Faure, G. Botoman
1984, Chemical Geology (46) 313-324
Isotopic compositions of oxygen, carbon and strontium of calcite cleats in coal seams of southern Victoria Land, Antarctica, and Tuscarawas County, Ohio, contain a record of the conditions a the time of their formation. The Antarctic calcites (?? 18O(SMOW) = +9.14 to +11.82%0) were deposited from waters enriched in 16O...
Thermal history determined by fission-track dating for three sedimentary basins in California and Wyoming
Nancy D. Naeser
1984, Nuclear Tracks and Radiation Measurements (1982) (10) 423
The use of fission-tracks is demonstrated in studies of time-temperature relationships in three sedimentary basins in the western United States; in the Tejon Oil Field area of the southern San Joaquin Valley, California; in the northeastern Green River basin, Wyoming, and in drill holes in the southern Powder River Basin,...
Introduction - Contaminants in the upper Mississippi River
J.G. Wiener, R.V. Anderson, D.R. McConville
J.G. Wiener, R.V. Anderson, D.R. McConville, editor(s)
1984, Book chapter, Contaminants in the upper Mississippi River
Abstract not submitted to date...
Geochemical survey of Missouri
Ronald R. Tidball
1984, Professional Paper 954-H-I
No abstract available....
Hydrologic analysis of the High Plains aquifer system in Box Butte County, Nebraska
R. A. Pettijohn, Hsiu-Hsiung Chen
1984, Water-Resources Investigations Report 84-4046
During the past 40 years, pumpage of ground water for irrigation from the High Plains aquifer system underlying Box Butte County, Nebraska, has resulted in a steady decline of water levels. Consequently, a digital model of the aquifer system was constructed to evaluate various water-management alternatives. The hydraulic conductivity of...
Availability of water from the alluvial aquifer in part of the Green River Valley, King County, Washington
W. E. Lum II, R. C. Alvord, B. W. Drost
1984, Water-Resources Investigations Report 83-4178
The Muckleshoot Indian Tribe plans (1982) to build a fish hatchery in part of a 1.56-square-mile area in the Green River valley, Washington, and use groundwater to operate it. Groundwater data were collected in the area and used in a U.S. Geological Survey two-dimensional groundwater-flow model calibrated to simulate the...
Volcanic studies at the David A. Johnston Cascades Volcano Observatory
S. Brantley
1984, Earthquake Information Bulletin (USGS) (16) 44-51
The changing hydrology at Mount St. Helens
S. Brantley
1984, Earthquake Information Bulletin (USGS) (16) 106-122
Monitoring activities at Mount St. Helens and other Cascade volcanoes
S. Brantley
1984, Earthquake Information Bulletin (USGS) (16) 68-105
Mantle metasomatism: The REE story
H. G. Wilshire
1984, Geology (12) 395-398
Refractory rocks with light REE/heavy REE ratios greater than chondrite are common as xenoliths in basalts and kimberlites and are found in some oceanic peridotite massifs. This has led to the supposition that large parts of the upper mantle have been metasomatically altered...
Team effort meets 1983 landslide emergency in Utah
E. E. Brabb, R. W. Fleming
1984, Earthquake Information Bulletin (USGS) (16) 128-135
Hawaii earthquake of November 16, 1983
R.W. Decker, Robert Y Koyanagi
1984, Earthquake Information Bulletin (USGS) (16) 4-9
Eruptive activity of Mount St. Helens; March 1980 March 1984
S. Brantley
1984, Earthquake Information Bulletin (USGS) (16) 52-67
Oil company captures Wyoming earthquake
R.D. Clark
1984, Earthquake Information Bulletin (USGS) (16) 225-226
APPLICATION OF SPATIAL INFORMATION TECHNOLOGY TO PETROLEUM RESOURCE ASSESSMENT ANALYSIS.
Betty M. Miller, Michael A. Domaratz
1984, Conference Paper
Petroleum resource assessment procedures require the analysis of a large volume of spatial data. The US Geological Survey (USGS) has developed and applied spatial information handling procedures and digital cartographic techniques to a recent study involving the assessment of oil and gas resource potential for 74 million acres of designated...
Heating of a fully saturated Darcian half-space: Pressure generation, fluid expulsion, and phase change
P. Delaney
1984, International Journal of Heat and Mass Transfer (27) 1327-1335
Analytical solutions are developed for the pressurization, expansion, and flow of one- and two-phase liquids during heating of fully saturated and hydraulically open Darcian half-spaces subjected to a step rise in temperature at its surface. For silicate materials, advective transfer is commonly unimportant in the liquid region; this is not...
EFFECT ON BRIDGE PIERS ON STREAMFLOW AND CHANNEL GEOMETRY.
James C. Blodgett
Kassabian NaomiHerman ScottKaplan Elizabeth W.Starkey Jane, editor(s)
1984, Conference Paper, Transportation Research Record
Piers in the waterway affect the velocity distribution across the channel and may act as barriers to floating debris. In addition, they also affect channel geometry by causing general and local scour in the vicinity of the bridge. The level of hydraulic efficiency of an unobstructed channel may be reduced...
EFFECTS OF LOCALIZED AQUIFER BOILING ON FLUID PRODUCTION AT CERRO PRIETO.
Alfred H. Truesdell, Franco D’Amore, David Nieva
1984, Conference Paper, Transactions - Geothermal Resources Council
Localized aquifer boiling in the shallow two-phase reservoir of Cerro Prieto has produced excess steam and increased electrical output. Unfortunately it has also caused near-well mineral deposition that has decreased permeability and fluid flow. Inflow of cold water has limited the extent of aquifer boiling and permeability loss. The deeper...
