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Publication Extents

Not all publications have extents, not all extents are completely accurate
Predatory bird populations in the east Mojave Desert, California
R.L. Knight, R.J. Camp, W.I. Boarman, H.A.L. Knight
1999, Great Basin Naturalist (59) 331-338
We surveyed 7 species of predatory birds weekly during a 12-month period (December 1992 through November 1993) in the east Mojave Desert, California. The Common Raven (Corvus corax) was the most frequently observed species with an average of 6.9 sightings per 100 km. Turkey Vultures (Cathartes aura), Red-tailed Hawks (Buteo...
1:2,000,000-scale Hydrologic Units of the United States
John Watermolen
1999, Report
This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. It was revised for inclusion in the National Atlas of the United States of America, and updated to match the streams file created by the USGS...
Relating tumor score to hematology in green turtles with fibropapillomatosis in Hawaii
Thierry M. Work, George H. Balazs
1999, Journal of Wildlife Diseases (35) 804-807
The relationship between hematologic status and severity of tumor affliction in green turtles (Chelonia mydas) with fibropapillomatosis (FP) was examined. During 1 wk periods in July 1997 and July 1998, we bled 108 free-ranging green turtles from Pala'au (Molokai, Hawaii, USA) where FP is endemic. Blood was analyzed for hematocrit,...
Granular cell tumor in an endangered Puerto Rican Amazon parrot (Amazon vittata)
Charlotte Quist, K. S. Latimer, S. L. Goldade, A. Rivera, F. Joshua Dein
1999, Avian Pathology (28) 345-348
A 3 cm diameter mass from the metacarpus of a Puerto Rican Amazon parrot was diagnosed as a granular cell tumour based on light microscopy. The cytoplasmic granules were periodic-acid Schiff positive and diastase resistant. Ultrastructural characteristics of the cells included convoluted nuclei and the presence of numerous cytoplasmic tertiary...
Constraints on the sedimentation history of San Francisco Bay from 14C and 10Be
A. VanGeen, N. J. Valette-Silver, S. N. Luoma, C. C. Fuller, M. Baskaran, F. Tera, J. Klein
1999, Marine Chemistry (64) 29-38
Industrialization and urbanization around San Francisco Bay as well as mining and agriculture in the watersheds of the Sacramento and San Joaquin rivers have profoundly modified sedimentation patterns throughout the estuary. We provide some constraints on the onset of these erosional disturbances with 10Be data for three sediment cores: two...
Aphanomyces as a cause of ulcerative skin lesions of menhaden from Chesapeake Bay Tributaries
V. S. Blazer, W. K. Vogelbein, Christine L. Densmore, E.B. May, J. H. Lilley, D. E. Zwerner
1999, Journal of Aquatic Animal Health (11) 340-349
During the summer and fall of 1997, an unusually high prevalence of skin lesions in fishes from Chesapeake Bay tributaries as well as two fish kills in the Pocomoke River stimulated significant public concern. Atlantic menhaden Brevoortia tyrannus were the most frequent target of the acute fish...
Properties of samples containing natural gas hydrate from the JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well, determined using Gas Hydrate And Sediment Test Laboratory Instrument (GHASTLI)
W.J. Winters
1999, Bulletin of the Geological Survey of Canada 241-250
As part of an ongoing laboratory study, preliminary acoustic, strength, and hydraulic conductivity results are presented from a suite of tests conducted on four natural-gas-hydrate-containing samples from the Mackenzie Delta JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well. The gas hydrate samples were preserved in pressure vessels during transport from the...
Tidally generated sea-floor lineations in Bristol Bay, Alaska, USA
M. S. Marlow, A.J. Stevenson, H. Chezar, R.A. McConnaughey
1999, Geo-Marine Letters (19) 219-226
Highly reflective linear features occur in water depths of 20-30 m in northern Bristol Bay (Alaska, USA) and are, in places, over 600 m in length. Their length-to-width ratio is over 100:1. The lineations are usually characterized by large transverse ripples with wavelengths of 1-2 m. The lineations trend about...
A climatic record from 14C-dated wood fragments from southwestern Colorado
S. Epstein, X. Xu, P. Carrara
1999, Global Biogeochemical Cycles (13) 781-784
Deuterium concentrations in trees are related to the climatic temperature at which the trees grew. Deuterium analyses were made on all available (39) 14C-dated (all 14C dates cited are uncorrected) wood fragments collected from Lake Emma sediments. The 14C dates range from 9600 to 5400 'B.P.'. Tree line was above...
Precipitation structure in the Sierra Nevada of California during winter
G.R. Pandey, D.R. Cayan, K.P. Georgakakos
1999, Journal of Geophysical Research D: Atmospheres (104) 12019-12030
Influences of upper air characteristics along the coast of California upon winter-time (November-April) precipitation in the Sierra Nevada are investigated. Precipitation events in the Sierra Nevada region occur mostly during wintertime, irrespective of station location (leeside or windside) and elevation. Most precipitation episodes in the region are associated with moist...
Amount of gas hydrate estimated from compressional- and shear-wave velocities at the JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well
Myung W. Lee
1999, Bulletin of the Geological Survey of Canada 313-322
The amount of in situ gas hydrate concentrated in the sediment pore space at the JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well was estimated by using compressional-wave (P-wave) and shear-wave (S-wave) downhole log measurements. A weighted equation developed for relating the amount of gas hydrate concentrated in the pore space...
A late Frasnian (Late Devonian) radiolarian, sponge spicule, and conodont fauna from the Slaven Chert, northern Shoshone Range, Roberts Mountains allochthon, Nevada
S. Q. Boundy-Sanders, Charles Sandberg, B.L. Murchey, A. G. Harris
1999, Micropaleontology (45) 62-68
Co-occuring conodonts, radiolarians, and sponge spicules from the type locality of the Slaven Chert, northern Shoshone Range, Nevada, indicate that the radiolarian and sponge spicule assemblage described herein correlates with the Late rhenana conodont Zone (late Frasnian). The moderately well preserved radiolarians are the first Frasnian-age fauna described from the...
The dependence of permeability on effective stress from flow tests at hot dry rock reservoirs at Rosemanowes (Cornwall) and Fenton Hill (New Mexico)
M. Nathenson
1999, Geothermics (28) 315-340
Effective stress is the primary control on permeability and thus on flow and water loss for two-well hot dry rock systems involving injection and production that have been tested to date. Theoretical relations are derived for the flow between an injector and producer, including the dependence of permeability on effective...
Sea-floor methane blow-out and global firestorm at the K-T boundary
M.D. Max, William P. Dillon, C. Nishimura, B.G. Hurdle
1999, Geo-Marine Letters (18) 285-291
A previously unsuspected source of fuel for the global firestorm recorded by soot in the Cretaceous-Tertiary impact layer may have resided in methane gas associated with gas hydrate in the end-Cretaceous seafloor. End-Cretaceous impact-generated shock and megawaves would have had the potential to initiate worldwide oceanic methane gas blow-outs from...
Summer Ephemeroptera, Plecoptera, and Trichoptera (EPT) species richness and community structure in the lower Illinois River basin of Illinois
R.E. DeWalt, D.W. Webb, M.A. Harris
1999, Great Lakes Entomologist (32) 115-132
Ephemeroptera, Plecoptera, and Trichoptera (EPT) species richness is useful for monitoring stream health, but no published studies in Illinois quantitatively document EPT richness or assemblage structure. The objectives of this study were to characterize adult EPT richness and structure and relate these to relative water quality at eight stream sites...
Debris-flow origin for the Simud/Tiu deposit on Mars
K. L. Tanaka
1999, Journal of Geophysical Research E: Planets (104) 8637-8652
A late Hesperian smooth plains deposit on Mars interpreted as a debris flow extends more than 2000 km from Hydraotes Chaos, through Simud and Tiu Valles, and into Chryse Planitia. The Simud/Tiu deposit widens out to >1000 km and embays streamlined landforms and knobs made up of sedimentary and perhaps...
Low-temperature alteration of dredged volcanics from the Southern Chile Ridge: Additional information about early stages of seafloor weathering
T. Pichler, W.I. Ridley, E. Nelson
1999, Marine Geology (159) 155-177
A suite of submarine volcanic rocks from the Southern Chile Ridge has been examined in order to investigate the early stages of low temperature alteration. Alteration in these samples proceeded as follows: (1) Fe-staining on sample surface and along fractures, (2) filling of vesicles with secondary material, (3) breakdown of...
Tectonic and sediment supply control of deep rift lake turbidite systems: Lake Baikal, Russia
C.H. Nelson, E.B. Karabanov, Steven M. Colman, C. Escutia
1999, Geology (28) 163-166
Tectonically influenced half-graben morphology controls the amount and type of sediment supply and consequent type of late Quaternary turbidite systems developed in the active rift basins of Lake Baikal, Russia. Steep border fault slopes (footwall) on the northwest sides of half-graben basins provide...
Lead isotope compositions of Late Cretaceous and early Tertiary igneous rocks and sulfide minerals in Arizona: Implications for the sources of plutons and metals in porphyry copper deposits
R. M. Bouse, J. Ruiz, S.R. Titley, R. M. Tosdal, J. L. Wooden
1999, Economic Geology (94) 211-244
Porphyry copper deposits in Arizona are genetically associated with Late Cretaceous and early Tertiary igneous complexes that consist of older intermediate volcanic rocks and younger intermediate to felsic intrusions. The igneous complexes and their associated porphyry copper deposits were emplaced into an Early Proterozoic basement characterized by different rocks, geologic...