Unsaturated-zone instrumentation in coarse alluvial deposits of the Amargosa Desert near Beatty, Nevada
D. S. Morgan, J.M. Fischer
1984, Report, Proceedings, sixth annual participants' information meeting (U.S. Department of Energy Low-Level Waste Management Program, CONF-8409115)
No abstract available....
Relationship of fluviodeltaic facies to coal deposition in the lower Fort Union formation (Palaeocene), south-western North Dakota
Edward S. Belt, Romeo M. Flores, Peter D. Warwick, Kevin M. Conway, Kirk R. Johnson, Robert S. Waskowitz
R.A. Rahmani, Romeo M. Flores, editor(s)
1984, Special Publication of the International Association of Sedimentologists 7-10
Facies analysis of the Ludlow and Tongue River Members of the Palaeocene Fort Union Formation provides an understanding of the relationship between fluviodeltaic environments and associated coal deposition in the south-western Williston Basin. The Ludlow Member consists of high-constructive delta facies that interfinger with brackish-water tongues of the...
Coalification of organic matter in coal balls of the Pennsylvanian (upper Carboniferous) of the Illinois Basin, United States
Paul C. Lyons, Carolyn L. Thompson, Patrick G. Hatcher, F. W. Brown, M.A. Millay, Nikolaus Szeverenyi, G.E. Maciel
1984, Organic Geochemistry (5) 227-239
An evaluation was made of the degree of coalification of two coal balls from the Illinois Basin of the Pennsylvanian (upper Carboniferous) of the United States. Previous interpretations are mainly misleading and contradictory, primarily because of the assumption that the brown color and exceptional cellular and subcellular preservation typical of...
Great Salt Lake, and precursors, Utah: The last 30,000 years
R. J. Spencer, M.J. Baedecker, H.P. Eugster, R. M. Forester, M. B. Goldhaber, B.F. Jones, K. Kelts, J. McKenzie, D.B. Madsen, S.L. Rettig, M. Rubin, C.J. Bowser
1984, Contributions to Mineralogy and Petrology (86) 321-334
Sediment cores up to 6.5 m in length from the South Arm of Great Salt Lake, Utah, have been correlated. Radiocarbon ages and volcanic tephra layers indicate a record of greater than 30,000 years. A variety of approaches have been employed to collect data used in stratigraphic correlation and lake...
The Palmer Drought Severity Index: limitations and assumptions.
W.M. Alley
1984, Journal of Climate and Applied Meteorology (23) 1100-1109
The structure of the Palmer Drought Severity Index (PDSI), which is perhaps the most widely used regional index of drought, is examined. The PDSI addresses two of the most elusive properties of droughts: their intensity and their beginning and ending times. Under certain conditions, the PDSI values are very sensitive...
Simulation of ground-water flow in a mined watershed in eastern Ohio
J. S. Weiss, A. C. Razem
1984, Groundwater (22) 549-560
A 43-acre watershed in Muskingum County, Ohio, was studied to determine the hydrologic consequences of strip mining for coal. A quantitative description of the effects on the ground-water flow components of the hydrologic system has been obtained using digital models.The premining watershed was characterized by...
Paleogene geology and chronology of southwestern Umnak Island, Aleutian Islands, Alaska
H. McLean, J.R. Hein
1984, Canadian Journal of Earth Sciences (21) 171-180
The rocks of southwestern Umnak Island (Nikolski area) consist mainly of a slightly deformed marine sedimentary sequence intruded by hypabyssal quartz diorite sills and small plutons. Laminated and thin-bedded argillaceous and tuffaceous mudstone and siltstone reflect volcanic arc sedimentation from late Eocene to early Oligocene time. Zeolite facies minerals formed...
ASSESSMENT OF HIGH-TEMPERATURE GEOTHERMAL RESOURCES IN HYDROTHERMAL CONVECTION SYSTEMS IN THE UNITED STATES.
Manuel Nathenson
1984, Conference Paper, Proceedings of the Intersociety Energy Conversion Engineering Conference
The amount of thermal energy in high-temperature geothermal systems (>150 degree C) in the United States has been calculated by estimating the temperature, area, and thickness of each identified system. These data, along with a general model for recoverability of geothermal energy and a calculation that takes account of the...
A review of progress in understanding the fluid geochemistry of the Cerro Prieto geothermal system
A.H. Truesdell, N.L. Nehring, J. M. Thompson, C. J. Janik, T.B. Coplen
1984, Geothermics (13) 65-74
Fluid geochemistry has played a major role in our present understanding of the Cerro Prieto geothermal system. Fluid chemical and isotopic compositions have been used to indicate the origin of water, salts and gases, original subsurface temperature and fluid flow, fluid-production mechanisms, and production-induced aquifer boiling and cold-water entry. The...
Bedding types in Holocene tidal channel sequences, Knik Arm, Upper Cook Inlet, Alaska
S. Bartsch-Winkler, H. R. Schmoll
1984, Journal of Sedimentary Petrology (54) 1239-1250
Uplifted convoluted and horizontal to subhorizontal beds of varying thickness in intertidal silt as old as 3,280 + or - 90 yr B.P. are exposed in the banks of tidal channels of unknown depth in the intertidal zone in Knik Arm of Upper...
Calculations of seabird population recovery from potential oilspills in the mid-Atlantic region of the United States
William B. Samuels, A. Ladino
1984, Ecological Modelling (21) 63-84
Calculations were made of herring gull and common tern population recovery from potential oilspill damage in the U.S. mid-Atlantic Outer Continental Shelf (OCS) oil leasing area. Population recovery was examined using a density-dependent age-specific life history table for each species. Both a deterministic and a stochastic approach were used in...
Application of mineral-solution equilibria to geochemical exploration for sandstone-hosted uranium deposits in two basins in west central Utah
W. R. Miller, R. B. Wanty, J. B. McHugh
1984, Economic Geology (79) 266-283
A geochemical survey utilizing mainly ground waters was conducted in the Milford and Beaver basins. Waters were collected mainly from wells and springs at 100 sites and analyzed for major and minor elements. A computer model (WATEQ3) was used to calculate the redox potential and the state of saturation of...
ANALYSIS AND REDUCTION OF LANDSAT DATA FOR USE IN A HIGH PLAINS GROUND-WATER FLOW MODEL.
Gail Thelin, Leonard Gaydas, Walter Donovan, Carol Mladinich
1984, Conference Paper
Data obtained from 59 Landsat scenes were used to estimate the areal extent of irrigated agriculture over the High Plains region of the United States for a ground-water flow model. This model provides information on current trends in the amount and distribution of water used for irrigation. The analysis and...
Avian cholera in Nebraska's Rainwater Basin
Ronald M. Windingstad, J. J. Hurt, A. K. Trout, J. Cary
1984, Transactions of the North American Wildlife and Natural Resources Conference (49) 576-583
The first report of avian cholera in North America occurred in northwestern Texas in winter 1944 (Quortrup et al. 1946). In 1975, mortality from avian cholera occurred for the first time in waterfowl in the Rainwater Basin of Nebraska when an estimated 25,000 birds died (Zinkl et al. 1977). Avian...
Accretionary lapilli in altered tuffs associated with coal beds
B.F. Bohor, Don M. Triplehorn
1984, Journal of Sedimentary Petrology (54) 317-325
Accretionary lapilli have been identified in claystones (tonsteins) associated with coal beds of Late Cretaceous age in Wyoming, Utah, and New Mexico. The presence of accretionary lapilli in these tonstein partings confirms their volcanic origin. Similar concentric structures in other claystones not in...
Low-temperature heat capacities of CaAl2SiO6 glass and pyroxene and thermal expansion of CaAl2SiO6 pyroxene.
H.T. Haselton Jr., B. S. Hemingway, R. A. Robie
1984, American Mineralogist (69) 481-489
Low-T heat capacities (5-380 K) have been measured by adiabatic calorimetry for synthetic CaAl2SiO6 glass and pyroxene. High-T unit cell parameters were measured for CaAl2SiO6 pyroxene by means of a Nonius Guinier-Lenne powder camera in order to determine the mean coefficient of thermal expansion in the T range 25-1200oC. -J.A.Z....
Phenotypic variation of the Mexican duck (Anas platyrhynchos diazi) in Mexico
N.J. Scott Jr., R.P. Reynolds
1984, Condor (86) 266-274
A collection of 98 breeding Mexican Ducks (Anas platyrhynchos diazi) was made in Mexico from six areas between the United States border with Chihuahua and Lake Chapala, Jalisco, in order to study geographic variation. Plumage indices showed a relatively smooth clinal change from north to south; northern populations were...
Waste water management techniques at the United States national fish hatcheries
Adam G. Fox
1984, Conference Paper
No abstract available ...
Offset of Tertiary arcs on the Alaska Peninsula: A section in Geological Survey research, fiscal year 1981
U.S. Geological Survey
1984, Professional Paper 1375
Geologic mapping and potassium-argon dating by R. L. Detterman, F. H. Wilson, J. E. Case, and Nora Shew in the Ugashik and western part of the Karluk quadrangles have shown that the Eocene and Oligocene volcanic arc continues into these quadrangles from the south in the Chignik and Sutwik Island...
ROLE OF SPATIAL RESOLUTION AND SPECTRAL CONTENT IN CHANGE DETECTION.
Valerie A. Milazzo
1984, Conference Paper
Summary form only given, as follows. Advancements in remote sensing technology have brought improvements and sophistication to modern remote sensor systems, especially those aboard earth resources satellites. These improvements have considerbly expanded the capabilities of the newer sensor systems, particularly the capability to achieve greatly increased spatial and spectral resolution...
Potential effects of surface coal mining on the hydrology of the West Otter area, Ashland and Birney-Broadus coal fields, southeastern Montana
N. E. McClymonds
1984, Water-Resources Investigations Report 84-4087
Shallow aquifers exist primarily within the Tongue River Member of the Paleocene Fort Union Formation and within valley alluvium. Sandstone beds are the principal aquifers for domestic supply and livestock watering, with the Knobloch coal bed being a secondary source of supply. Surface-water resources consist principally of perennial flow in...
Publications of the Geological Survey, 1983
Water Resources Division, U.S. Geological Survey
1984, Report
This catalog is a list of (1) books and maps that were published during 1983, and (2) articles by Geological Survey personnel in non-Geological Survey journals and books that came to our attention in 1983; it supplements the permanent catalogs "Publications of the Geological Survey, 1879-1961" and "Publications of the...
MICROCHARACTERIZATION OF ARSENIC- AND SELENIUM-BEARING PYRITE IN UPPER FREEPORT COAL, INDIANA COUNTY, PENNSYLVANIA.
J.A. Minkin, R. B. Finkelman, C.L. Thompson, E. C. T. Chao, L.F. Ruppert, H. Blank, C. B. Cecil
1984, Scanning Electron Microscopy 1515-1529
Optical and scanning electron microscope as well as electron and proton microprobe techniques have been used in a detailed investigation of the modes of occurrence of arsenic and selenium in pyrite in Upper Freeport coal from the Homer City area, Indiana County, Pennsylvania. Polished blocks were prepared from columnar samples...
Lithotectonic assemblages as portrayed on the new bedrock geologic map of Massachusetts.
Norman L. Hatch Jr., E-An Zen, Richard Goldsmith, Nicholas M. Ratcliffe, Peter Robinson, Rolfe S. Stanley, David R. Wones
1984, American Journal of Science (284) 1026-1034
Scale of 1:250,000. The map units are grouped into eight lithotectonic packages. Five "zones" of older rocks that cover the whole state are, from west to east, the Taconic-Berkshire, Rowe-Hawley, Bronson Hill, Nashoba, and Milford-Dedham. In central and western Massachusetts, these zones are overlain by the Connecticut Valley and Merrimack...
A probabilistic model for the persistence of early planar fabrics in polydeformed pelitic schists
C.C. Ferguson
1984, Journal of Structural Geology (6) 135-146
Although early planar fabrics are commonly preserved within microlithons in low-grade pelites, in higher-grade (amphibolite facies) pelitic schists fabric regeneration often appears complete. Evidence for early fabrics may be preserved within porphyroblasts but, within the matrix, later deformation often appears to...
