A.F. Barsotti, D.E. Morse
2001, Mining Engineering (53) 17-21
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateIsaac J. Winograd
2001, Water Resources Research (37) 431-433
In their response to the comments by Thomas [1999], Davisson et al. [1999a] dismiss a large set of potentiometric measurements pertinent to an understanding of the hydrogeology of Yucca and Frenchman Flats in southcentral Nevada. This commentary is submitted to demonstrate, first, that their dismissal of this data set is...
A. D. McGuire, S. Sitch, Joy S. Clein, R. Dargaville, G. Esser, J. Foley, Martin Heimann, F. Joos, J. Kaplan, D. W. Kicklighter, R.A. Meier, J. M. Melillo, B. Moore III, I. C. Prentice, N. Ramankutty, T. Reichenau, A. Schloss, H. Tian, L.J. Williams, U. Wittenberg
2001, Global Biogeochemical Cycles (15) 183-206
The concurrent effects of increasing atmospheric CO2 concentration, climate variability, and cropland establishment and abandonment on terrestrial carbon storage between 1920 and 1992 were assessed using a standard simulation protocol with four process-based terrestrial biosphere models. Over the long-term(1920–1992), the simulations yielded a time history of terrestrial uptake that is...
Arthur Grantz, Victoria L. Pease, Debra A. Willard, R. L. Phillips, David L. Clark
2001, GSA Bulletin (113) 1272-1281
Two piston cores from the Eurasian flank of Lomonosov Ridge near lat 88.9°N, long 140°E provide the first samples of bedrock from this high-standing trans-Arctic ridge. Core 94-PC27 sampled nonmarine siltstone similar in facies and age to uppermost Triassic to lower Lower Jurassic and mid– Lower Cretaceous beds in the...
Brian F. Atwater
2001, Book chapter, Earth: inside and out
No abstract available....
Mark R. Rosiek, Randolph L. Kirk, Trent M. Hare, Elpitha Howington-Kraus
2001, Conference Paper, Planetary Mapping: ISPRS Working Group IV/9 Workshop Proceedings
The USGS is producing digital elevation models (DEM) and topographic maps of Mars at scales of 1:250,000 to 1:1,000,000. The initial source material will be Viking Orbiter images, with a later transition to Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) when stereo coverage from that source is available for...
Larry Mayer, Zhong Lu
2001, Geology (29) 495-498
A basic model incorporating satellite synthetic aperture radar (SAR) interferometry of the fault rupture zone that formed during the Kocaeli earthquake of August 17, 1999, documents the elastic rebound that resulted from the concomitant elastic strain release along the North Anatolian fault. For pure strike-slip faults, the elastic rebound function...
Mary G. Chapman, John L. Smellie, Magnus T. Gudmundsson, Virginia C. Gulick, Sveinn P. Jakobsson, Ian P. Skilling
2001, Eos, Transactions, American Geophysical Union (82) 234-235
Observations of recent volcanic eruptions in Iceland and detailed studies of sub-glacially erupted deposits and the interaction of lava and pyroclastic flows with snow and ice have provided important new data that should lead to significant advances in the understanding of volcano/ice interaction on Earth and Mars. A conference on...
Samuel N. Goward, Jeffrey G. Masek, Darrel L. Williams, James R. Irons, R.J. Thompson
2001, Remote Sensing of Environment (78) 3-12
The Landsat Earth observation approach introduced in 1972 created a new way of monitoring land cover and land use globally. The Landsat 7 mission, successfully launched on April 15, 1999, continues those observations and demonstrates significant progress in precise numerical radiometry, spectral differentiation, and seasonally repetitive monitoring. Substantial improvements in...
R.F. Balazik, L. McCartan, D.E. Morse, S.F. Sibley
2001, Mining Engineering (53) 33-41
No abstract available....
Stephanie G. Prejean, William L. Ellsworth
2001, Bulletin of the Seismological Society of America (91) 165-177
To investigate seismic source parameter scaling and seismic efficiency in the Long Valley caldera, California, we measured source parameters for 41 earthquakes (M 0.5 to M 5) recorded at 2 km depth in the Long Valley Exploratory Well. Borehole recordings provide a wide frequency bandwidth, typically 1 to 200–300 Hz,...
W. Marzocchi, G. Vilardo, D.P. Hill, G.P. Ricciardi, C. Ricco
2001, Bulletin of the Seismological Society of America (91) 191-205
We analyzed and compared the seismic activity that has occurred in the last two to three decades in three distinct volcanic areas: Phlegraean Fields, Italy; Vesuvius, Italy; and Long Valley, California. Our main goal is to identify and discuss common features and peculiarities in the temporal evolution of earthquake sequences...
John Pojeta Jr., Dale A. Springer
2001, Book
No abstract available....
Herbert H. Covert, Mark W. Hamrick, Trinh Dzanh, Kevin C. McKinney
2001, Journal of Vertebrate Paleontology (21) 633-636
No abstract available....
James D. Bliss, K. S. Bolm
2001, Book, Proceedings of the 35th Forum on the Geology of Industrial Minerals: the Intermountain West Forum 1999
Sedimentary deposits of pluvial Lake Bonneville are an important source of sand and gravel suitable for aggregate and construction in Utah. Data on Lake Bonneville basin sand and gravel deposit thickness, volume, grain size, percent of fines, and durability were statistically analyzed to detect variations associated with geologic domains, geographic...
D. C. Mosher, Samuel Y. Johnson, editor(s)
2001, Open File 3931
No abstract available....
Erik M. Clapp, Paul R. Bierman, Kyle K. Nichols, Milan Pavich, Marc A. Caffee
2001, Quaternary Research (55) 235-245
Using 10Be and 26Al measured in sediment and bedrock, we quantify rates of upland erosion and sediment supply to a small basin in northwestern New Mexico. This and many other similar basins in the southwestern United States have been affected by cycles of arroyo incision and backfilling several times in...
Alan L. Flint, Lorraine E. Flint, Gudmundur S. Bodvarsson, Edward M. Kwicklis, June Fabryka-Martin
2001, Journal of Hydrology (247) 1-30
Yucca Mountain is an arid site proposed for consideration as the United States’ first underground high-level radioactive waste repository. Low rainfall (approximately 170 mm/yr) and a thick unsaturated zone (500–1000 m) are important physical attributes of the site because the quantity of water likely to reach the waste and the...
D. D. Blankenship, D. L. Morse, C. A. Finn, R.E. Bell, M.E. Peters, S.D. Kempf, S. M. Hodge, M. Studinger, John C. Behrendt, J. M. Brozena
2001, Book chapter, The West Antarctic Ice Sheet: Behavior and Environment
No abstract available....
J. Veverka, P.C. Thomas, M. Robinson, S. Murchie, C. Chapman, M. Bell, A. Harch, W.J. Merline, J.F. Bell III, B. Bussey, B. Carcich, A. Cheng, B. Clark, D. Domingue, D. Dunham, R. Farquhar, M.J. Gaffey, E. Hawkins, N. Izenberg, J. Joseph, R. Kirk, H. Li, P. Lucey, M. Malin, L. McFadden, J.K. Miller, W.M. Owen Jr., C. Peterson, L. Prockter, J. Warren, D. Wellnitz, B.G. Williams, D. K. Yeomans
2001, Science (292) 484-488
On 25 October 2000, the Near Earth Asteroid Rendevous (NEAR)-Shoemaker spacecraft executed a low-altitude flyover of asteroid 433 Eros, making it possible to image the surface at a resolution of about 1 meter per pixel. The images reveal an evolved surface distinguished by an abundance of ejecta blocks, a dearth...
Frederick L. Paillet, F.M. Haynes, O.M. Buretz
2001, Petrophysics (42) 17-18
The massive Paleocene oil sands of the Balder Field are overlain by several thinly bedded Eocene sand-prone packages of variable facies and reservoir quality. Although these sands have been penetrated by numerous exploration and development wells, uncertainty remains as to their extent, distribution, and ultimate effect on reservoir performance. The...
James V. Gardner, Edward J. van den Ameele, Guy Gelfenbaum, Walter Bernhardt, Homa Lee, Steve Palmer
2001, Eos, Transactions, American Geophysical Union (82) 485-489
A moment magnitude 6.8 earthquake struck southern Puget Sound (Figure 1) on February 28, 2001, causing an estimated $0.7–$1.4 billion in damages to buildings and roadways in the region [Williams et al., 2001]. The earthquake source was 52 km deep, and the epicenter was located close to the Nisqually River...
Carol A. Finn, Gordon D. Kraft, Matthew S. Sibol, Ronald L. Jones, Mark E. Pulaski
2001, Book chapter, Monitoring the comprehensive Nuclear-Test-Ban Treaty: Sourse location
An important requirement for a comprehensive seismic monitoring system is the capability to accurately locate small seismic events worldwide. Accurate event location can improve the probability of determining whether or not a small event, recorded predominantly by local and regional stations, is a nuclear explosion. For those portions of the...
Water Resources Division, U.S. Geological Survey
2001, Report
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000 scale and exists at that scale for the whole country. High resolution NHD adds...
Zhensheng Chen, Lee R. Riciputi, Claudia I. Mora, Neil S. Fishman
2001, Geology (29) 1067-1070
Oxygen isotope compositions of widespread, authigenic K-feldspar and quartz overgrowths and cements in the Upper Cambrian Mount Simon Sandstone were measured by ion microprobe in 11 samples distributed across the Illinois basin and its periphery. Average K-feldspar δ18O values increase systematically from +14‰ ± 1‰ in the southernmost and deepest...