Chapter 10: Shallow crustal deformation in the Pahranagat area, southern Nevada
Angela S. Jayko
Brian P. Wernicke, editor(s)
1990, Book chapter, Basin and Range extensional tectonics near the latitude of Las Vegas, Nevada
The Pahranagat area lies in the Basin and Range Province of southern Nevada. Paleozoic rocks in the study area were folded and faulted during the Sevier orogeny and subsequently extended prior to deposition of Tertiary strata. Middle Oligocene strata overlie the Paleozoic rocks with pronounced angular unconformity and were deposited...
Kidney lesions associated with mortality in chickens inoculated with waterfowl influenza viruses
R.D. Slemons, L. N. Locke, Martha G. Sheerar, R. M. Duncan, Virginia S. Hinshaw, B.C. Easterday
1990, Avian Diseases (34) 120-128
Seventy-six type A influenza viruses recovered from waterfowl in Wisconsin, California, South Dakota, Florida, Texas, Alabama, and Nebraska were tested for virulence in chickens. The challenge to chickens was intravenous inoculation of first-, second-, or third-egg-passage virus. Each of the virus strains was tested separately in three or four chickens....
The California Valley grassland
Jon E. Keeley
Allan A. Schoenherr, editor(s)
1990, Book chapter, Endangered Plant Communities of Southern California: Proceedings of the 15th Annual Symposium
Grasslands are distributed throughout California from Oregon to Baja California Norte and from the coast to the desert (Brown 1982) (Figure 1). This review will focus on the dominant formation in cismontane California, a community referred to as Valley Grassland (Munz 1959). Today, Valley Grassland is dominated by...
Paleogeographic setting of upper Paleozoic rocks in the northern Sierra and eastern Klamath terranes, northern California
David S. Harwood, M. Meghan Miller
1990, Book chapter, Paleozoic and early Mesozoic paleogeographic relations; Sierra Nevada, Klamath Mountains, and related terranes
Upper Paleozoic rocks of the northern Sierra and eastern Klamath terranes provide detailed stratigraphic records of ensimatic arc-related sedimentation and magmatism. Comparison of Paleozoic stratigraphic relations between the two terranes, however, suggests certain contrasts in depositional environments and the nature, volume, and timing of volcanism for given time intervals. Some...
Age and depositional setting of siliceous sediments in the upper Paleozoic Havallah sequence near Battle Mountain, Nevada; Implications for the paleogeography and structural evolution of the western margin of North America
Benita L. Murchey
David S. Harwood, M. Meghan Miller, editor(s)
1990, Book chapter, Paleozoic and early Mesozoic paleogeographic relations; Sierra Nevada, Klamath Mountains, and related terranes
The upper Paleozoic Havallah sequence of central Nevada is a folded and thrust-faulted association of greenstone, siliceous marine sedimentary rocks, and deep-water clastic rocks. Microfossil assemblages (radiolarians, sponge spicules, and conodonts) are used as tools to unravel the stratigraphy and to interpret the paleoenvironments of the siliceous sedimentary rocks. Nine...
Stratigraphy and tectonics of Paleozoic arc-related rocks of the northernmost Sierra Nevada, California; The eastern Klamath and northern Sierra terranes
Angela S. Jayko
David S. Harwood, M. Meghan Miller, editor(s)
1990, Book chapter, Paleozoic and early Mesozoic paleogeographic relations; Sierra Nevada, Klamath Mountains, and related terranes
The Eastern Klamath and Northern Sierra terranes of northern California consist of Devonian to Jurassic arc-related rocks that structurally and/or stratigraphically overlie Devonian(?) or older complexes that consist of quartzite, quartzofeldspathic sandstone, chert, and mafic and ultramafic rocks. These terranes lie within a regional belt of Paleozoic arc-related rocks that...
Postrelease monitoring of radio-instrumented sea otters in Prince William Sound
C. Monnett, L.M. Rotterman, C. Stack, Daniel H. Monson
Keith Bayha, Jennifer Kormendy, editor(s)
1990, Biological Report 90(12)
Sea otters (Enhydra lutris) that were captured in western Prince William Sound (PWS) or the Gulf of Alaska, treated, and held in captivity at the temporary rehabilitation centers established in response to the T/V Exxon Valdez oil spill were instrumented with radio transmitters, released into eastern PWS, and monitored by...
Review of paleomagnetic data from the Klamath Mountains, Blue Mountains, and Sierra Nevada; Implications for paleogeographic reconstructions
Edward A. Mankinen, William P. Irwin
1990, Book chapter, Paleozoic and Early Mesozoic Paleogeographic Relations; Sierra Nevada, Klamath Mountains, and Related Terranes: GSA Special Papers v. 255
Paleomagnetic studies of the Klamath Mountains, Blue Mountains, Sierra Nevada, and northwestern Nevada pertain mostly to Jurassic and Cretaceous rocks, but some data also are available for Permian and Triassic rocks of the region. Large vertical-axis rotations are indicated for rocks in many of the terranes, but few studies show...
Crustal structure of the northwestern Basin and Range Province from the 1986 Program for Array Seismic Studies of the Continental Lithosphere Seismic Experiment
Harley M. Benz, R. B. Smith, Walter D. Mooney
1990, Journal of Geophysical Research (95) 21823-21842
A portion of northwestern Nevada was imaged to determine the crustal structure and to assess reported differences between refraction versus reflection determinations of Moho depth and how the crustal composition and structure has been influenced by volcanic and extension mechanisms. Interpretation of the refraction/wide-angle reflection data suggests that the crust...
Variations in the styles of erosion along the Florida Escarpment, eastern Gulf of Mexico
D.C. Twichell, L.M. Parson, C. K. Paull
1990, Marine and Petroleum Geology (7) 253-266
GLORIA sidescan sonographs and Seabeam bathymetric data show morphological differences along the Florida Escarpment which reflect that different erosional styles have been active along different parts of this carbonate platform edge. The northern half of the escarpment is cut by numerous small ravines spaced 1-5 km apart. Its southern half...
Faults of the central part of the Lewis and Clark line and fragmentation of the Late Cretaceous foreland basin in west-central Montana
C. A. Wallace, D. J. Lidke, R. G. Schmidt
1990, Geological Society of America Bulletin (102) 1021-1037
The Lewis and Clark line is a prominent zone of strike-slip, dip-slip, and oblique-slip faults that extends from near Wallace, Idaho, to east of Helena, Montana. Faults of this zone have been intermittently active from Middle Proterozoic to Holocene time, and because of numerous tectonic overprints, controversy continues about displacement...
Sediment movement along the U.S. east coast continental shelf-I. Estimates of bottom stress using the Grant-Madsen model and near-bottom wave and current measurements
V.D. Lyne, B. Butman, W.D. Grant
1990, Continental Shelf Research (10) 397-428
Bottom stress is calculated for several long-term time-series observations, made on the U.S. east coast continental shelf during winter, using the wave-current interaction and moveable bed models of Grant and Madsen (1979, Journal of Geophysical Research, 84, 1797-1808; 1982, Journal of Geophysical Research, 87, 469-482). The wave and current measurements...
Growth and equilibrium in sea otter populations
J. A. Estes
1990, Journal of Animal Ecology (59) 385-400
(1) Counts through time were compiled for five sea otter (Enhydra lutris) populations in the north-east Pacific Ocean that were below equilibrium density: Attu Island, south-east Alaska, British Columbia, Washington State, and central California. Similar data were obtained from the equilibrium density population at Amchitka Island in 1971 and 1986....
Major off-axis hydrothermal activity on the northern Gorda Ridge
Peter A. Rona, Roger P. Denlinger, M. R. Fisk, K. J. Howard, G. L. Taghon, Kim D. Klitgord, James S. McClain, G. R. McMurray, J. C. Wiltshire
1990, Geology (18) 493-496
The first hydrothermal field on the northern Gorda Ridge, the Sea Cliff hydrothermal field, was discovered and geologic controls of hydrothermal activity in the rift valley were investigated on a dive series using the DSV Sea Cliff. The Sea Cliff hydrothermal field was discovered where predicted...
Perspectives on earthquake hazards in the New Madrid seismic zone, Missouri
P.C. Thenhaus
1990, Earthquakes & Volcanoes (USGS) (22) 4-21
A sequence of three great earthquakes struck the Central United States during the winter of 1811-1812 in the area of New Madrid, Missouri. they are considered to be the greatest earthquakes in the conterminous U.S because they were felt and caused damage at far greater distances than any other earthquakes...
Seasonal movements of adult female polar bears in the Bering and Chukchi seas
Gerald W. Garner, Steven T. Knick, David C. Douglas
1990, Bears: Their Biology and Management (8) 219-226
Ten adult female polar bears (Ursus maritimus) were fitted with satellite telemetry collars during March 1986 in the Kotzebue Sound area of the Chukchi Sea. During March-April 1987, 2 of these bears were refitted with satellite telemetry collars and an additional 10 adult females were collared in the northern Bering...
High-energy carbonate-sand accumulation, the Quicksands, southwest Florida Keys
Eugene A. Shinn, Barbara H. Lidz, Charles W. Holmes
1990, Journal of Sedimentary Research (60) 952-967
High-resolution seismic-reflection profiles of the Quicksands, located along a broad ridge on the platform shelf west of Key West, Florida, indicate a significant deposit of non-oolitic carbonate sand occurs in a belt 47 km long by 28 km wide. The surface of the belt is ornamented by large (5 m),...
Sources and fractionation processes influencing the isotopic distribution of H, O and C in the Long Valley hydrothermal system, California, U.S.A.
A. F. White, M. L. Peterson, H. Wollenberg, S. Flexser
1990, Applied Geochemistry (5) 571-585
The isotopic ratios of H, O and C in water within the Long Valley caldera, California reflect input from sources external to the hydrothermal reservoir. A decrease in δD in precipitation of 0.5‰ km−1, from west to east across Long Valley,...
Epithermal gold-siver deposits in the western United States: time-space products of evolving plutonic, volcanic and tectonic environments
Byron R. Berger, Harold F. Bonham Jr.
1990, Journal of Geochemical Exploration (36) 103-142
The western United States has been the locus of considerable subaerial volcanic and plutonic igneous activity since the mid-Mesozoic. After the destruction of the Jurassic-Cretaceous magmatic arc-trench system, subduction was re-established in the Late Mesozoic with low-angle underthrusting of the oceanic plate beneath western North America. This resulted in crustal...
The 3 December 1988 Pasadena, California earthquake: Evidence for strike-slip motion on the Raymond Fault
L.M. Jones, K.E. Sieh, E. Hauksson, L.K. Hutton
1990, Bulletin of the Seismological Society of America (80) 474-482
The Pasadena earthquake (ML = 4.9) occurred on 3 December 1988, at a depth of 16 km. The hypocenters of the earthquake and its aftershocks define a east-northeast striking, steeply northwest-dipping surface that projects up to the active surficial trace of the Raymond fault. One of the nodal planes of...
Patrick Draw field, Wyoming - 1 seismic expression of subtle strat trap in Upper Cretaceous Almond
Robert T. Ryder, Myung W. Lee, Warren F. Agena, Robert C. Anderson
1990, Oil & Gas Journal (88) 54-57
The east flank of the Rock Springs uplift and the adjacent Wamsutter arch contain several large hydrocarbon accumulations. Among these accumulations are Patrick Draw field, which produces oil and gas from a stratigraphic trap in the Upper Cretaceous Almond formation, and Table Rock field, a faulted anticlinal trap that produces...
Near-surface velocities and attenuation at two boreholes near Anza, California, from logging data
Joe B. Fletcher, T. Fumal, Hsi-Ping Liu, L.C. Carroll
1990, Bulletin of the Seismological Society of America (80) 807-831
To investigate near-surface site effects in granite rock, we drilled 300-m-deep boreholes at two sites which are collocated with stations from the digital array at Anza, California. The first borehole was sited at station KNW (Keenwild fire station), which is located along a ridge line about 8.7 km east of...
Modern aerial gamma-ray spectrometry and regional potassium map of the conterminous United States
Joseph S. Duval
1990, Journal of Geochemical Exploration (39) 249-253
Aerial gamma-ray surveys of the natural environment measure the flux of gamma rays produced by the radioactive decay of 40K, 214Bi, and 208Tl in the upper 10–20 cm of surface materials. 40K is a radioactive potassium isotope which can be used to estimate the total amount of potassium in the soils and rocks. 214Bi is...
Thermal history of rocks in southern San Joaquin Valley, California: evidence from fission-track analysis
Nancy D. Naeser, Charles W. Naeser, Thane H. McCulloh
1990, American Association of Petroleum Geologists Bulletin (74) 13-29
The theory of the fission-track method and its application to sedimentary basin analysis is illustrated by a case study in the southern San Joaquin Valley, California. Fission tracks provide a powerful tool for studying the thermal history of sedimentary basins because the two minerals most commonly used in fission-track studies,...
Ground-water resources of Honey Lake Valley, Lassen County, California, and Washoe County, Nevada
Elinor H. Handman, Clark J. Londquist, Douglas K. Maurer
1990, Water-Resources Investigations Report 90-4050
Honey Lake Valley is a 2,200 sq-mi, topographically closed basin about 35 miles northwest of Reno, Nevada. Unconsolidated basin-fill deposits on the valley floor and fractured volcanic rocks in northern and eastern uplands are the principal aquifers. In the study area, about 130,000 acre- ft of water recharges the aquifer...
