Bedrock aquifers of eastern San Juan County, Utah
Charles Avery
1985, Open-File Report 85-568
This study is one of a series of studies appraising the water-bearing properties of the Navajo Sandstone and associated formations in southern Utah. The study area is about 4,600 square miles, extending from the Utah-Arizona State line northward to the San Juan-Grand County line and westward from the Utah-Colorado State...
Emission spectrographic and atomic absorption analyses of rock, mineral occurrence, prospect, and deposit samples from the Mount Hayes quadrangle, eastern Alaska Range, Alaska
R. E. Zehner, R. M. O’Leary, G.W. Day, S. J. Sutley, W. J. Nokleberg, R. D. Koch
1985, Open-File Report 84-774
No abstract available....
Environmental contaminants in eastern Cooper's hawk eggs
Oliver H. Pattee, Mark R. Fuller, T. Earl Kaiser
1985, Journal of Wildlife Management (49) 1040-1044
No abstract available. ...
Comparison of fire fuel maps produced using MSS and AVHRR data
Wayne A. Miller, David C. Johnston
1985, Conference Paper, Pecora 10 Symposium
The fuel information, in support of the Bureau of Land Management's (BLM) national fire program, has been obtained through the manila interpretation of Landsat multi-spectral scanner images and digital image analysis of Advanced Very High Resolution Radiometer (AVHRR) data. The BLM, in cooperation with the Earth Resources Observation Systems...
Organochlorine concentrations, whole body weights, and lipid content of black skimmers wintering in Mexico and in south Texas, 1983
Donald H. White, C. A. Mitchell, C. J. Stafford
1985, Bulletin of Environmental Contamination and Toxicology (34) 513-517
Since 1978, a large proportion of the black skimmers (Rynchops niger) nesting along the Texas coast have had high concentrations of DDE in their eggs. Of 284 eggs collected from 5 sites during 1978-81, 99.5% contained detectable (> 0.i0 ppm) w levels of DDE, ranging up to 86 ppm wet-weight;...
Origin and tectonic evolution of the Maclaren and Wrangellia terranes, eastern Alaska Range, Alaska
Warren J. Nokleberg, D. L. Jones, Norman J. Silberling
1985, GSA Bulletin (96) 1251-1270
Major portions of the eastern Alaska Range, south of the Denali fault, in the McCarthy, Nabesna, Mount Hayes, and eastern Healy quadrangles, consist predominantly of the Maclaren and Wrangellia tectono-stratigraphic terranes. The Maclaren terrane consists of the Maclaren Glacier metamorphic belt and the regionally deformed and metamorphosed East Susitna batholith....
Geologic setting, petrology, and geochemistry of stratiform sphalerite-galena-barite deposits, Red Dog Creek and Drenchwater Creek areas, northwestern Brooks Range, Alaska
Ian M. Lange, Warren J. Nokleberg, J.T. Plahuta, H.R. Krouse, B. R. Doe
1985, Economic Geology (80) 1896-1926
Similar stratiform sphalerite-galena-barite deposits occur in the Red Dog Creek area, De Long Mountains quadrangle, and in the Drenchwater Creek area, Howard Pass quadrangle, northwestern Brooks Range, Alaska. The deposits, located approximately 180 km apart, are hosted by Mississippian and Pennsylvanian strata of the Kagvik structural sequence of late Paleozoic...
An aerial photographic census of Chesapeake Bay and North Carolina canvasbacks
G.M. Haramis, J.R. Goldsberry, D.G. McAuley, E.L. Derleth
1985, Journal of Wildlife Management (49) 449-454
We used conventional 35-mm photography to conduct an aerial photographic census of canvasbacks (Aythya valisineria) throughout Chesapeake Bay (tidal Maryland and Virginia) and coastal North Carolina, 26-30 January 1981. Flock size and sex ratio characteristics were determined from examination of color transparencies of 165 canvasback flocks totaling over 95,000 birds....
Recent Red-shouldered Hawk range expansion north into Oregon including first specimen record
Charles J. Henny, John E. Cornely
1985, Murrelet (66) 29-31
In this paper we review 46 Red-shouldered Hawk (Buteo lineatus) observation records from Oregon between 1971 and 1983. The literature contained only two records prior to 1971: Johnson's (1880) record without a specific date or locality from the Willamette Valley of western Oregon, and Bendire's (1892) two nests located...
Paleomagnetism and geology of Eocene volcanic rocks of southwest Washington, implications for mechanisms of tectonic rotation
Ray E. Wells, Robert S. Coe
1985, Journal of Geophysical Research (90) 1925-1947
Paleomagnetic and geologic investigations in Eocene volcanic rocks of the southwest Washington Coast Range demonstrate a close relationship between tectonic rotations and the local structural geology. The allochthonous middle Eocene submarine basalt basement of the Crescent Formation consists of...
Map of Antelope Valley-East Kern Water Agency area, California, showing ground-water subunits and areas, location of wells, and lines of equal depth to water for spring 1983
W. R. Moyle Jr., Florence M. Glenn
1985, Open-File Report 84-726
No abstract available....
Ground-water flow in the Prairie du Chien-Jordan aquifer related to contamination by coal-tar derivatives, St. Louis Park, Minnesota
J. R. Stark, M. F. Hult
1985, Water-Resources Investigations Report 85-4087
A three-dimensional, ground-water-flow model of the Prairie du Chien-Jordan aquifer and associated hydrogeologic units was developed to evaluate the movement of coal-tar derivatives from a coal-tar distillation and wood-preserving plant in St. Louis Park, Minnesota. A finite-difference grid was superimposed on the modeled area, which includes most of eastern Hennepin...
Geohydrology of the aquifer in the Santa Fe Group, northern West Mesa of the Mesilla Basin near Las Cruces, New Mexico
R. G. Myers, B. R. Orr
1985, Water-Resources Investigations Report 84-4190
Because of the heterogeneity of the Santa Fe Group, New Mexico, the hydrologic characteristics of the aquifer vary substantially from place to place. Hydraulic conductivities of 12 and 30 feet per day were estimated from aquifer tests for two wells in the eastern one-half of the study area. Well yields...
Hydrologic and geochemical monitoring in Long Valley caldera, Mono County, California, 1982-1984
C. D. Farrar, M.L. Sorey, S. Rojstaczer, C. J. Janik, Robert H. Mariner, T. L. Winnett, M. D. Clark
1985, Water-Resources Investigations Report 85-4183
The Long Valley caldera is a potentially active volcanic area on the eastern side of the Sierra Nevada in east-central California. Hydrologic and geochemical monitoring of surface and subsurface features began in July 1982 to determine if changes were occurring in response to processes causing earthquakes and crustal deformation. Differences...
Major and trace-element analyses of acid mine waters in the Leviathan Mine drainage basin, California/Nevada; October, 1981 to October, 1982
J.W. Ball, D. Kirk Nordstrom
1985, Water-Resources Investigations Report 85-4169
Water issuing from the inactive Leviathan open-pit sulfur mine has caused serious degradation of the water quality in the Leviathan/Bryant Creek drainage basin which drains into the East Fork of the Carson River. As part of a pollution abatement project of the California Regional Water Quality Control Board, the U.S....
Streamflow statistics and drainage-basin characteristics for the southwestern and eastern regions, Washington: Volume I. Southwestern Washington
John R. Williams, Harold E. Pearson
1985, Open-File Report 84-145-A
No abstract available....
The role of erosion by fish in shaping topography around Hudson submarine canyon.
D.C. Twichell, Craig B. Grimes, R. S. Jones, K.W. Able
1985, Journal of Sedimentary Petrology (55) 712-719
An 800-km 2 area of rough topography around the head of Hudson Canyon off the eastern United States is attributed to erosion by tilefish ( Lopholatilus chamaeleonticeps ) and associated species of crustaceans. The rough topography has a relief of 1-10 m, occurs in water depths of 120-500 m, and has been...
Evolution and present state of the hydrothermal system in Long Valley caldera
M.L. Sorey
1985, Journal of Geophysical Research Solid Earth (90) 11219-11228
Evidence for previous periods of hydrothermal activity in Long Valley caldera exists in the form of extensive deposits of hydrothermal alteration products at several locations within the caldera and saline deposits in Searles Lake which contain mineral assemblages contributed by hot spring discharge from Long Valley. Hydrothermal activity was more...
Global geologic mapping of Mars: The western equatorial region
D. H. Scott
1985, Advances in Space Research (5) 71-82
Global geologic mapping of Mars was originally accomplished following acquisition of orbital spacecraft images from the Mariner 9 mission. The mapping program represented a joint enterprise by the U.S. Geological Survey and other planetary scientists from universities in the United States and Europe. Many of the Mariner photographs had low...
40Ar/39Ar and K-Ar data bearing on the metamorphic and tectonic history of western New England
J. F. Sutter, N. M. Ratcliffe, S.B. Mukasa
1985, Geological Society of America Bulletin (96) 123-136
40Ar/39Ar ages of coexisting biotite and hornblende from Proterozoic Y gneisses of the Berkshire and Green Mountain massifs, as well as 40Ar/39Ar and K-Ar mineral and whole-rock ages from Paleozoic metamorphic rocks, suggest that the thermal peak for the dominant metamorphic recrystallization in western New England occurred 465 ± 5 m.y....
Isotopic studies of the late Archean plutonic rocks of the Wind River Range, Wyoming
J. S. Stuckless, C. E. Hedge, R. G. Worl, K. R. Simmons, Ignatius T. Nkomo, D. B. Wenner
1985, Geological Society of America Bulletin (96) 850-860
Isotopic studies of the Rb-Sr and U-Th-Pb systems in whole-rock samples and the U-Pb systematics for zircons document the existence of two late Arehean intrusive events in the Wind River Range. All of the systems examined indicate an age of ∼2,630 ± 20...
The effects of grazers and light penetration on the survival of transplants of Vallisneria americana Michs in the tidal Potomac River, Maryland
Virginia Carter, Nancy B. Rybicki
1985, Aquatic Botany (23) 197-213
Poor light penetration and grazing are among the factors potentially responsible for the lack of submersed aquatic macrophytes in the tidal Potomac River. Between 1980 and 1983, plugs, springs and tubers of Vallisneria americana Michx were transplanted from the oligohaline Potomac Estuary to six sites in the freshwater tidal Potomac River. Transplants...
Petrology and tectonic significance of augen gneiss from a belt of Mississippian granitoids in the Yukon-Tanana terrane, east- central Alaska
Cynthia Dusel-Bacon, John N. Aleinikoff
1985, Geological Society of America Bulletin (96) 411-425
An approximately E-W-trending belt of porphyritic peraluminous granitic rocks, metamorphosed and deformed to augen gneiss, is exposed for 400 km across the Yukon-Tanana terrain. Chemical, textural, and isotopic data from large augen-gneiss bodies indicate that these bodies originated as early Mississippian granitic rocks that assimilated, or were anatectically derived from,...
Harmonic analysis of tides and tidal currents in South San Francisco Bay, California
R. T. Cheng, J. W. Gartner
1985, Estuarine, Coastal and Shelf Science (21) 57-74
Water level observations from tide stations and current observations from current-meter moorings in South San Francisco Bay (South Bay), California have been harmonically analysed. At each tide station, 13 harmonic constituents have been computed by a least-squares regression without inference. Tides in South Bay are typically mixed; there is a...
Carboniferous U-Pb age of the Sebago batholith, southwestern Maine: Metamorphic and tectonic implications
J.H. Aleinikoff, R. H. Moench, J.B. Lyons
1985, Geological Society of America Bulletin (96) 990-996
Two phases (pink and white granite) of the Sebago batholith of southwestern Maine have been dated by the U-Pb zircon method. Identical upper concordia intercepts of both rocks indicate an intrusive age of 325 ± 3 m.y. for the batholith. The lower intercept...
