Conference Papers
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Debris-flow hazard map units from gridded probabilities Debris-flow hazard map units from gridded probabilities
The common statistical practice of dividing a range of probabilities into equal probability intervals may not result in useful landslide-hazard map units for areas populated by equal-area cells, each of which has a unique probability. Most hazard map areas contain very large numbers of cells having low probability of failure, and as probability increases, the number of cells decreases in...
Authors
Russell H. Campbell, Richard L. Bernknopf
Debris-flow initiation experiments using diverse hydrologic triggers Debris-flow initiation experiments using diverse hydrologic triggers
Controlled debris-flow initiation experiments focused on three hydrologic conditions that can trigger slope failure: localized ground-water inflow; prolonged moderate-intensity rainfall; and high-intensity rainfall. Detailed monitoring of slope hydrology and deformation provided exceptionally complete data on conditions preceding and accompanying slope failure and debris-flow...
Authors
Mark E. Reid, Richard G. LaHusen, Richard M. Iverson
Decadal variability of precipitation over western North America Decadal variability of precipitation over western North America
No abstract available.
Authors
D.R. Cayan, M. D. Dettinger, H.F Diaz, N. Graham
Delineating and monitoring habitat management units in a temperate deep-water marine protected area Delineating and monitoring habitat management units in a temperate deep-water marine protected area
No abstract available.
Authors
P.J. Auster, C. Michalopoulos, Page C. Valentine, R.J. Malatesta
Development of anesthetics for the mussel Elliptio complanata Development of anesthetics for the mussel Elliptio complanata
No abstract available at this time
Authors
W.A. Lellis, T.A. Plerhoples
Distribution and population characteristics of zebra mussels,Dreissena polymorpha, (Bivalvia: Dreissenidae) in Kentucky Lake, Kentucky Distribution and population characteristics of zebra mussels,Dreissena polymorpha, (Bivalvia: Dreissenidae) in Kentucky Lake, Kentucky
No abstract available.
Authors
J.J. Herod, D. P. Reed, J. B. Sickel
Distribution of seabirds in the northern Gulf of Mexico in relation to mesoscale features: Initial observations Distribution of seabirds in the northern Gulf of Mexico in relation to mesoscale features: Initial observations
The presence of seabirds was related to offshore surface eddies and the freshwater plume of the Mississippi River in the northern Gulf of Mexico during autumn, winter, spring, and summer 1992-1993. Skuas (Stercorarius spp.) were the most common bird seen in autumn, whereas skuas and gulls (Larus spp.) were the most common in winter. Few birds were seen in the spring, and terns (Sterna...
Authors
C. A. Ribic, R. Davis, N. Hess, D. Peake
Ecosystem dynamics of the Northern Rocky Mountains, USA Ecosystem dynamics of the Northern Rocky Mountains, USA
No abstract available.
Authors
D.B. Fagre, C.H. Key, J.D. White, S. W. Running, F. R. Hauer, R.E. Keane, K. C. Ryan
Evaluation of field and laboratory research on scour at bridge piers in the United States Evaluation of field and laboratory research on scour at bridge piers in the United States
The Federal Highway Administration sponsored a laboratory research at Colorado State University and field data collection with the US Geological Survey, to evaluate the effects of bed material on the depth of scour. Correction factors are compared to include the effect of bed material in the HEC-18 equation. The HEC-18 equation tends to overpredict the observed scour for streams with...
Authors
David S. Mueller, J. Sterling Jones
Evidence for radionuclide transport by sea ice Evidence for radionuclide transport by sea ice
Ice and ice-borne sediments were collected across the Arctic Basin during the Arctic Ocean Section, 1994 (AOS-94), a recent US/Canada trans- Arctic expedition. Sediments were analysed for 137Cs, clay mineralogy and carbon. Concentrations of 137Cs ranged from 5 to 73 Bq kg-1 in the ice- borne sediments. Concentrations of ice samples without sediment were all less than 1 Bq m-3. The...
Authors
D.A. Meese, E. Reimnitz, W. B. Tucker, A. J. Gow, J. Bischof, D. Darby
Factors controlling the abundance of organic sulfur in flash pyrolyzates of Upper Cretaceous kerogens from Sergipe Basin, Brazil Factors controlling the abundance of organic sulfur in flash pyrolyzates of Upper Cretaceous kerogens from Sergipe Basin, Brazil
The molecular and elemental composition of immature kerogens isolated from Upper Cretaceous marine carbonates from Sergipe Basin, Brazil were investigated using combined pyrolysis-gas chromatography/mass spectrometry and organic petrographic techniques. The kerogens are predominantly composed of reddish-fluorescing amorphous organic matter (AOM) and variable amounts of yellow-fluorescing...
Authors
A.M. Carmo, B.A. Stankiewicz, Maria Mastalerz, L.M. Pratt
Faulting of gas-hydrate-bearing marine sediments - contribution to permeability Faulting of gas-hydrate-bearing marine sediments - contribution to permeability
Extensive faulting is observed in sediments containing high concentrations of methane hydrate off the southeastern coast of the United States. Faults that break the sea floor show evidence of both extension and shortening; mud diapirs are also present. The zone of recent faulting apparently extends from the ocean floor down to the base of gas-hydrate stability. We infer that the faulting...
Authors
William P. Dillon, W.S. Holbrook, Rebecca Drury, Joseph Gettrust, Deborah Hutchinson, James Booth, Michael Taylor