Processes affecting the fate of monoaromatic hydrocarbons in an aquifer contaminated by crude oil
R.P. Eganhouse, T.F. Dorsey, C.S. Phinney, A.M. Westcott
1996, Environmental Science & Technology (30) 3304-3312
Crude oil spilled from a subsurface pipeline in north-central Minnesota has dissolved in the groundwater, resulting in the formation of a plume of aliphatic, aromatic, and alicyclic hydrocarbons. Comparison of paired oil and groundwater samples collected along the central axis of the residual oil body shows that the trailing edge...
A scan-angle correction for thermal infrared multispectral data using side lapping images
K. Watson
1996, Geophysical Research Letters (23) 2421-2424
Thermal infrared multispectral scanner (TIMS) images, acquired with side lapping flight lines, provide dual angle observations of the same area on the ground and can thus be used to estimate variations in the atmospheric transmission with scan angle. The method was tested using TIMS aircraft data...
Frictional behavior of large displacement experimental faults
N.M. Beeler, T.E. Tullis, M.L. Blanpied, J.D. Weeks
1996, Journal of Geophysical Research B: Solid Earth (101) 8697-8715
The coefficient of friction and velocity dependence of friction of initially bare surfaces and 1-mm-thick simulated fault gouges (<90 μm) of Westerly granite were determined as a function of displacement to >400 mm at 25°C and 25 MPa normal stress. Steady state negative friction velocity dependence and a steady state...
Summary of proposed endangered plant data collected on Santa Rosa Island by National Biological Survey staff and collaborators, 1994-1996
A. Kathryn McEachern
1996, Report
No abstract available at this time...
XVAN: A computer program for the analysis of spatial estimation errors
Ricardo A. Olea
1996, Computers & Geosciences (22) 445-448
[No abstract available]...
Predictive techniques for river channel evolution and maintenance
J. M. Nelson
1996, Water, Air, & Soil Pollution (90) 321-333
Predicting changes in alluvial channel morphology associated with anthropogenic and natural changes in flow and/or sediment supply is a critical part of the management of riverine systems. Over the past few years, advances in the understanding of the physics of sediment transport in conjunction with rapidly increasing capabilities in computational...
Petrology and U-PB geochronology of the Robertson River Igneous Suite, Blue Ridge province, Virginia - Evidence for multistage magmatism associated witn an early episode of Laurentian rifting
Richard P. Tollo, John N. Aleinikoff
1996, American Journal of Science (296) 1045-1090
The Late Neoproterozoic (735-702 Ma) Robertson River Igneous Suite includes at least eight plutons ranging in composition from syenogranite to alkali feldspar granite to alkali feldspar syenite. These plutons intruded Mesoproterozoic (1.2-1.0 Ga) gneissic basement of the Blue Ridge anticlinorium in northern and central Virginia during an early episode of...
Covalent binding of aniline to humic substances. 1. Kinetic studies
E.J. Weber, D.L. Spidle, K. A. Thorn
1996, Environmental Science & Technology (30) 2755-2763
The reaction kinetics for the covalent binding of aniline with reconstituted IHSS humic and fulvic acids, unfractionated DOM isolated from Suwannee River water, and whole samples of Suwannee River water have been investigated. The reaction kinetics in each of these systems can be adequately described by a simple second-order rate...
Control of the European Green Crab in California: Detection of Natural Enemies. Final Report to Saltonstall-Kennedy. Grant Number: NA46FDO493
A. M. Kuris, K. D. Lafferty, M.E. Torchin
1996, Report
No abstract available at this time...
The effects of off-road vehicles on animal populations and habitats: A review of the literature. For the U S Bureau of Land Management, Riverside
K.H. Berry
1996, Report
No abstract available at this time...
The deethylatrazine/atrazine ratio as an indicator of the onset of the spring flush of herbicides into surface water of the midwestern United States
E.M. Thurman, J. D. Fallon
Hennion M.C.Albaiges J., editor(s)
1996, Conference Paper, International Journal of Environmental Analytical Chemistry
[No abstract available]...
Pb and O isotopic constraints on the source of granitic rocks from Cape Breton Island, Nova Scotia, Canada
Robert A. Ayuso, S. M. Barr, Frederick J. Longstaffe
1996, American Journal of Science (296) 789-817
Pb isotopic compositions of leached feldspars from twenty-three plutons in Cape Breton Island can be divided into two groups: anorthosite, syenite, and granite in the Blair River Complex, which have the least radiogenic compositions on the Island, and granitic rocks from terranes (Aspy, Bras d'Or, and Mira) to the south....
Neotropical migratory bird monitoring study at Marine Corps Base Camp Pendleton, California. Second annual progress report, 1996
B.E. Kus
1996, Report
No abstract available at this time...
Status of the least Bell's vireo and southwestern willow flycatcher at Marine Corps Base Camp Pendleton, 1995
B.E. Kus
1996, Report
No abstract available at this time...
Imaging the San Andreas fault with explosion and earthquake sources
C. Thurber, S. Roecker, W. Lutter, W. Ellsworth
1996, Eos, Transactions, American Geophysical Union (77) 45-48
Mounting evidence suggests that fault zone heterogeneity may play a crucial role in the localization of rupture in earthquakes [Aki, 1995]. The heterogeneity can take several forms: spatial variations in physical properties (elastic properties, pore fluid pressure, etc.) or complexity in the fault surface (bends, offsets, etc.). High-resolution, three-dimensional models...
Selected aspects of the ecology of the Arizona ridge-nosed rattlesnake (Crotalus willardi willardi) and the banded rock rattlesnake (Crotalus lepidus klauberi) in Arizona. Report to AGFD Heritage Program, Phoenix
H.K. McCrystal, C.R. Schwalbe, D.F. Retes
1996, Report
No abstract available at this time...
Geology and structural evolution of the Muruntau gold deposit, Kyzylkum desert, Uzbekistan
L.J. Drew, B. R. Berger, N.K. Kurbanov
1996, Ore Geology Reviews (11) 175-196
The Muruntau gold deposit in the Kyzylkum desert of Uzbekistan is the largest single deposit (??? 1100 tonnes of gold) of the class of low-sulfide syndeformation/synigenous gold deposits formed in the brittle/ductile transition zone of the crust within transpressional shear zones. Hosted by the Cambrian to Ordovician Besopan Suite, the...
On the coherence of ground motion in the San Fernando valley
S. E. Hough, E. H. Field
1996, Bulletin of the Seismological Society of America (86) 1724-1732
We present an analysis of the coherence of seismic ground motion recorded on alluvial sediments in the San Fernando Valley, California. Using aftershocks of the 17 January 1994 Mw6.7 earthquake recorded at a quasi-dense array of portable stations, we analyze the coherence of three...
The supply of suspended sediment from the Sacramento River to San Francisco Bay, I, concentrations and transports
L. E. Schemel, S.W. Hager, D. Childers
J.T. Hollibaugh, editor(s)
1996, Book chapter, San Francisco Bay - the ecosystem
No abstract available....
Deformation-induced changes in hydraulic head during ground-water withdrawal
Paul A. Hsieh
1996, Ground Water (34) 1082-1089
Ground-water withdrawal from a confined or semiconfined aquifer causes three-dimensional deformation in the pumped aquifer and in adjacent layers (overlying and underlying aquifers and aquitards). In response to the deformation, hydraulic head in the adjacent layers could rise or fall almost immediately after the start of pumping. This deformation-induced effect...
Late Quaternary transgressive large dunes on the sediment-starved Adriatic shelf
A. Correggiari, M.E. Field, F. Trincardi
1996, Geological Society Special Publication (117) 155-169
The Adriatic epicontinental basin is a low-gradient shelf where the late-Quaternary transgressive systems tract (TST) is composed of thin parasequences of backbarrier, shoreface and offshore deposits. The facies and internal architecture of the late-Quaternary TST in the Adriatic epicontinental basin changed consistently from early transgression to late transgression reflecting: (1)...
Uruguay Roselli 1938 and Rosellichnus, N. Ichnogenus: Two ichnogenera for clusters of fossil bee cells
Jorge F. Genise, Thomas M. Bown
1996, Ichnos: An International Journal for Plant and Animal Traces (4) 199-217
The systematics of the fossil bee nest ichnogenus Uruguay from the Uruguayan Cretaceous or lower Tertiary is reviewed and two new ichnospecies of a new ichnogenus, Rosellichnus, are proposed for fossil bee nests from the Miocene of the United Arab Emirates and Patagonian Argentina. Uruguay contains U. auroranormae(the ich‐notype) and U. rivasi, which differs from the type ichnospecies in...
Observations of rapid-fire event tremor at Lascar volcano, Chile
Guenter Asch, K. Wylegalla, M. Hellweg, D. Seidl, H. Rademacher
1996, Annals of Geophysics (39) 273-282
During the Proyecto de Investigacio??n Sismolo??gica de la Cordillera Occidental (PISCO '94) in the Atacama desert of Northern Chile, a continuously recording broadband seismic station was installed to the NW of the currently active volcano, Lascar. For the month of April, 1994, an additional network of three, short period, three-component...
Wetlands of California, part II: A method for their classification and description
W.J. Ferren, P.L. Fiedler, R. A. Leidy, K. D. Lafferty, L.A.K. Mertes
1996, Madroño (43) 125-182
No abstract available....
Calculation of earthquake rupture histories using a hybrid global search algorithm: Application to the 1992 Landers, California, earthquake
S. Hartzell, P. Liu
1996, Physics of the Earth and Planetary Interiors (95) 79-99
A method is presented for the simultaneous calculation of slip amplitudes and rupture times for a finite fault using a hybrid global search algorithm. The method we use combines simulated annealing with the downhill simplex method to produce a more efficient search algorithm then either of the two constituent parts....
