The lack of potassium-isotopic fractionation in Bishunpur chondrules
C. M. O’D. Alexander, J. N. Grossman, Jingyuan Wang, B. Zanda, M. Bourot-Denise, R.H. Hewins
2000, Meteoritics and Planetary Science (35) 859-868
In a search for evidence of evaporation during chondrule formation, the mesostases of 11 Bishunpur chondrules and melt inclusions in olivine phenocrysts in 7 of them have been analyzed for their alkali element abundances and K-isotopic compositions. Except for six points, all areas of the chondrules that were analyzed had...
Flowmetering of drainage wells in Kuwait City, Kuwait
Frederick L. Paillet, Y. Senay, A. Mukhopadhyay, F. Szekely
2000, Journal of Hydrology (234) 208-227
A heat-pulse flowmeter was used in six drainage wells in Kuwait City for flow profiling under both ambient and pumping conditions. The data collected were used in: (a) estimating the cross-flow among the screened intervals under ambient conditions; (b) estimating the relative transmissivity adjacent to the individual screen zones; and...
Geologic map and map database of the Palo Alto 30' x 60' quadrangle, California
E. E. Brabb, R. W. Graymer, D. L. Jones
2000, Miscellaneous Field Studies Map 2332
This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (pamf.ps, pamf.pdf, pamf.txt), it provides current information on the geologic structure and stratigraphy...
Environmental geochemical studies of selected mineral deposits in Wrangell-St. Elias National Park and Preserve, Alaska
Robert G. Eppinger, Paul H. Briggs, Danny Rosenkrans, Vanessa Ballestrazze
2000, Professional Paper 1619
Environmental geochemical investigations at Wrangell-St. Elias National Park and Preserve, Alaska, between 1994 and 1997 included studies of the Kennecott stratabound copper mines and mill area; historic mines and mill in the Bremner District, gold placer mines at Gold Hill; the undisturbed porphyry, Cu-Mo deposits at Orange Hill and Bond...
Ano Nuevo to Santa Cruz, California : a photographic tour of the coastline
Henry Chezar, Florence L. Wong
2000, Data Series 61
This interactive CD ROM contains over 500 overlapping photographic images of the California coastline from A?o Nuevo to Santa Cruz. The images were taken from the R/V David Johnston to illustrate the coastal geology adjacent to part of the Monterey Bay National Marine Sanctuary. The introductory home page starts a...
Potentiometric surface of the Minnelusa Aquifer in the Black Hills area, South Dakota
Michael L. Strobel, Joel M. Galloway, Ghaith R. Hamade, Gregory J. Jarrell
2000, Hydrologic Atlas 745-C
This map is a product of the Black Hills Hydrology Study, which was initiated in 1990 to assess the quantity, quality, and distribution of surface water and ground water in the Black Hills area of South Dakota (Driscoll, 1992). This long-term study is a cooperative effort between the U.S. Geological...
Potentiometric surface of the Deadwood Aquifer in the Black Hills area, South Dakota
Michael L. Strobel, Joel M. Galloway, Ghaith R. Hamade, Gregory J. Jarrell
2000, Hydrologic Atlas 745-E
This map is a product of the Black Hills Hydrology Study, which was initiated in 1990 to assess the quantity, quality, and distribution of surface water and ground water in the Black Hills area of South Dakota (Driscoll, 1992). This long-term study is a cooperative effort between the U.S. Geological...
Map showing Quaternary geology and geomorphology of the Granite Park area, Grand Canyon, Arizona
Richard Hereford, Kelly J. Burke, Kathryn S. Thompson
2000, IMAP 2662
View to west-northwest showing map area and setting of Granite Park; Grand Canyon, Arizona. The Colorado River flows from right to left. Granite Park Wash is the light-colored area in foreground of photograph. The debris fan of 209 Mile Canyon is at left center. Pleistocene gravel is exposed in the...
Potentiometric surface of the Madison Aquifer in the Black Hills area, South Dakota
Michael L. Strobel, Joel M. Galloway, Ghaith R. Hamade, Gregory L. Jarrell
2000, Hydrologic Atlas 745-D
This map is a product of the Black Hills Hydrology Study, which was initiated in 1990 to assess the quantity, quality, and distribution of surface water and ground water in the Black Hills area of South Dakota (Driscoll, 1992). This long-term study is a cooperative effort between the U.S. Geological...
Geologic map of the Carson Quadrangle (V-43), Venus
Kelly C. Bender, David A. Senske, Ronald Greeley
2000, IMAP 2620
The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the venusian atmosphere on October 12, 1994. Magellan had the objectives of (1) improving knowledge of the geologic processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2)...
Geologic map and cross sections showing configurations of bedrock surfaces, Broken Bow 1° x 2° quadrangle, east-central Nebraska
V. L. Souders
2000, IMAP 2725
No abstract available....
Glacier Peak - history and hazards of a cascade volcano
Larry Mastin, Richard B. Waitt
2000, Fact Sheet 058-00
Geologic/geomorphic map of the Galindo Quadrangle (V-40), Venus
Mary G. Chapman
2000, IMAP 2613
The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the venusian atmosphere on October 12, 1994. Magellan had the objectives of (1) improving knowledge of the geologic processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2)...
U.S. Geological Survey coastal and marine geology research; recent highlights and achievements
S. Jeffress Williams, Peter W. Barnes, Ellen J. Prager
2000, Circular 1199
The USGS Coastal and Marine Geology Program has large-scale national and regional research projects that focus on environmental quality, geologic hazards, natural resources, and information transfer. This Circular highlights recent scientific findings of the program, which play a vital role in the USGS endeavor to understand human interactions with the...
Potentiometric surface of the Inyan Kara Aquifer in the Black Hills area, South Dakota
Michael L. Strobel, Joel M. Galloway, Ghaith R. Hamade, Gregory J. Jarrell
2000, Hydrologic Atlas 745-A
This map is a product of the Black Hills Hydrology Study, which was initiated in 1990 to assess the quantity, quality, and distribution of surface water and ground water in the Black Hills area of South Dakota (Driscoll, 1992). This long-term study is a cooperative effort between the U.S. Geological...
Seismic reflection results from the GYRE 1997 cruise of the Bryant Canyon on the Louisiana Gulf Coast
Jeffrey W. Nealon, William P. Dillon, David Twichell
2000, Open-File Report 99-449
The Texas-Louisiana continental slope is one of the few remaining frontiers for hydrocarbon exploration within the US Exclusive Economic Zone. This area has a complex seafloor morphology and highly discontinuous shallow stratigraphy that are the result of deformation by the highly mobile Louann salt that underlies much of this margin...
ANSS-Advanced National Seismic System
Harley M. Benz, John Filson, Walter Arabasz, Lind Gee, Lisa Wald
2000, Fact Sheet 075-00
Potentiometric surface of the Minnekahta Aquifer in the Black Hills area, South Dakota
Michael L. Strobel, Joel M. Galloway, Ghaith R. Hamade, Gregory J. Jarrell
2000, Hydrologic Atlas 745-B
This map is a product of the Black Hills Hydrology Study, which was initiated in 1990 to assess the quantity, quality, and distribution of surface water and ground water in the Black Hills area of South Dakota (Driscoll, 1992). This long-term study is a cooperative effort between the U.S. Geological...
Preliminary geologic map of the Loma Machete Quadrangle, Sandoval County, New Mexico
Stephen Personius, Michael N. Machette, Byron D. Stone
2000, Miscellaneous Field Studies Map 2334
No abstract available....
ESRI ArcView extension; Point Stat Calc
Matthew Dombroski
2000, Open-File Report 2000-302
Geologic Map and Map Database of the Oakland Metropolitan Area, Alameda, Contra Costa, and San Francisco Counties, California
R. W. Graymer
2000, Miscellaneous Field Studies Map 2342
Introduction This report contains a new geologic map at 1:50,000 scale, derived from a set of geologic map databases containing information at a resolution associated with 1:24,000 scale, and a new description of geologic map units and structural relationships in the mapped area. The map database represents the integration of previously...
Data for Quaternary faults, liquefaction features, and possible tectonic features in the Central and Eastern United States, east of the Rocky Mountain Front
Anthony J. Crone, Russell L. Wheeler
2000, Open-File Report 2000-260
The USGS is currently leading an effort to compile published geological information on Quaternary faults, folds, and earthquake-induced liquefaction in order to develop an internally consistent database on the locations, ages, and activity rates of major earthquake-related features throughout the United States. This report is the compilation for such features in the Central and...
Mount Baker - living with an active volcano
Kevin M. Scott, Wes Hildreth, Cynthia A. Gardner
2000, Fact Sheet 059-00
Mount St. Helens - From the 1980 eruption to 2000
Steve Brantley, Bobbie Myers
2000, Fact Sheet 036-00
Mount St. Helens, Washington, is the most active volcano in the Cascade Range. Its most recent series of eruptions began in 1980 when a large landslide and powerful explosive eruption created a large crater, and ended 6 years later after more than a dozen extrusions of lava built a dome...
Geologic map of the Littlefield 30' x 60' quadrangle, Mohave County, northwestern Arizona
George H. Billingsley, Jeremiah B. Workman
2000, IMAP 2628
This map is one result of the U.S. Geological Survey's intent to provide geologic map coverage and a better understanding of the transition in regional geology between the Basin and Range and Colorado Plateaus in southeastern Nevada, southwestern Utah, and northwestern Arizona. Information gained from this regional study provides a...
