Publications
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Compositional analyses of small lunar pyroclastic deposits using Clementine multispectral data
Clementine ultraviolet-visible (UVVIS) data are used to examine the compositions of 18 pyroclastic deposits (15 small, three large) at 13 sites on the Moon. Compositional variations among pyroclastic deposits largely result from differing amounts of new basaltic (or juvenile) material and reworked local material entrained in their ejecta upon eruption. Characterization of pyroclastic deposit compo
Authors
Lisa R. Gaddis, Bernard Ray Hawke, Mark S. Robinson, Cassandra Coombs
Methane Hydrate Dissociation Rates at 0.1 MPa and Temperatures above 272 K
We performed rapid depressurization experiments on methane hydrate under isothermal conditions above 272 K to determine the amount and rate of methane evolution. Sample temperatures rapidly drop below 273 K and stabilize near 272.5 K during dissociation. This thermal anomaly and the persistence of methane hydrate are consistent with the reported recovery of partially dissociated methane hydrate f
Authors
S. Circone, Laura A. Stern, Stephen H. Kirby, J.C. Pinkston, William B. Durham
How useful is landslide hazard information? Lessons learned in the San Francisco Bay region
Landslides, worldwide and in the United States, are arguably the most costly natural hazard. Substantial landslide information is available, but much of it remains underutilized, as a disconnect exists among geologists, decision makers, and the public. The lack of a national landslide insurance policy exacerbates this situation and promotes litigation as the principal recourse for recouping landsl
Authors
David G. Howell, Earl E. Brabb, David W. Ramsey
Data for Quaternary faults in western Montana
The "World Map of Major Active Faults" Task Group is compiling published fault data, developing a digital
database of the fault data, and preparing a series of maps for the United States and other countries in the western
Hemisphere. The data is intended to portray the locations, ages, and activity rates of major earthquake-related
features such as faults, folds, and liquefaction features that hav
Authors
Kathleen M. Haller, Richard L. Dart, Michael N. Machette, Michael C. Stickney
Two-phase debris-flow across 3-D terrain: model predictions and experimental tests
No abstract available.
Authors
R. M. Iverson, R.P. Denlinger, R.G. LaHusen, M. Logan
Fully developed snout profiles of noncohesive debris-flows with internal friction
No abstract available.
Authors
Cheng-lung Chen, Chi-Hai Ling
The derivation of World Magnetic Model 2000
This report contains a detailed summary of the data used, the modelling techniques employed and the results obtained in the production of the World Magnetic Model 2000. This model is designed for use in air and sea navigation systems and is valid till 2005.0. The derivation of World Magnetic Model 2000 has been the joint responsibility of the British Geological Survey (BGS) and the United States G
Authors
Susan Macmillan, John M. Quinn
Debris-flow response of southern California watersheds burned by wildfire
No abstract available.
Authors
S.H. Cannon
Methane hydrate dissociation rates at 0.1 MPa and temperatures above 272 K
We performed rapid depressurization experiments on methane hydrate under isothermal conditions above 272 K to determine the amount and rate of methane evolution. Sample temperatures rapidly drop below 273 K and stabilize near 272.5 K during dissociation. This thermal anomaly and the persistence of methane hydrate are consistent with the reported recovery of partially dissociated methane hydrate fr
Authors
S. Circone, Laura A. Stern, Stephen H. Kirby, John C. Pinkston, William B Durham
Duration of sedimentation of Creede Formation from 40Ar/39Ar ages
The Oligocene Creede Formation was deposited in the moat of the Creede caldera, which formed as a result of eruption of ythe Snowshoe Mountains Tuff. The Creede Formation in the two moat drill holes contains ash layers that are considered fallout tuffs derived from Fisher Dacite volcanoes that were erupting during accumulation of the Creede Formation. The duration of sedimentation of the Creede Fo
Authors
Marvin A. Lanphere