Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

46734 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 1157, results 28901 - 28925

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
A compartmentalized solute transport model for redox zones in contaminated aquifers: 2. Field‐scale simulations
Robert H. Abrams , Keith Loague
2000, Water Resources Research (36) 2015-2029
This paper, the second of two parts [see Abrams and Loague, this issue], reports the field‐scale application of COMPTRAN (compartmentalized solute transport model) for simulating the development of redox zones. COMPTRAN is fully developed and described in the companion paper. Redox zones, which are often delineated by the relative concentrations of...
Earth Explorer
Water Resources Division, U.S. Geological Survey
2000, Fact Sheet 083-00
The U.S. Geological Survey's (USGS) Earth Explorer Web site provides access to millions of land-related products, including the following: Satellite images from Landsat, advanced very high resolution radiometer (AVHRR), and Corona data sets. Aerial photographs from the National Aerial Photography Program, NASA, and USGS data sets.  Digital cartographic data from...
Composition and depositional environment of concretionary strata of early Cenomanian (early Late Cretaceous) age, Johnson County, Wyoming
E.A. Merewether, Donald L. Gautier
2000, Bulletin 1917-U
Unusual, concretion-bearing mudrocks of early Late Cretaceous age, which were deposited in an early Cenomanian epeiric sea, have been recognized at outcrops in eastern Wyoming and in adjoining areas of Montana, South Dakota, Nebraska, and Colorado. In Johnson County, Wyo., on the western flank of the Powder River Basin, these...
The history of stream gaging in Ohio
Kimberly Shaffer
2000, Fact Sheet 050-00
IntroductionStreams are a natural resource that can influence economic growth and the development of communities. They supply water for many uses, provide habitat for aquatic plants and animals, and sup-port recreational activities such as boat-ing and fishing. The amount of water (flow) in a stream — either too little or...
Geologic datasets for weights of evidence analysis in Northeast Washington: 4. mineral industry activity in Washington, 1985-1997
D. E. Boleneus, R. E. Derkey
2000, Open-File Report 2000-14-A
This report includes a table of 339 sites representing mineral activities for mining and mineral exploration in the State of Washington from 1985 through 1997. The table was primarily compiled from annual reports in Washington Geologic Newsletter and Washington Geology. The information was compiled for use in a weights-of-evidence analysis...
Height changes in the epicentral region preceding the January 17, 1994 Northridge earthquake
Robert O. Castle, Robert F. Packard, Laura B. Dinitz
2000, Open-File Report 2000-2
Analysis of the results of repeated levelings through the epicentral region of the Mw 6.7, 1994 Northridge earthquake has disclosed the occurrence of differential uplift in this area that preceded the earthquake. Although the distribution of the relevant vertical-control data is somewhat sparse, in both space and time, those data...
Geologic datasets for weights of evidence analysis in Northeast Washington: 4. mineral industry activity in Washington, 1985-1997
D. E. Boleneus, R. E. Derkey
2000, Open-File Report 2000-14-B
This report includes a table of 339 sites representing mineral activities for mining and mineral exploration in the State of Washington from 1985 through 1997. The table was primarily compiled from annual reports in Washington Geologic Newsletter and Washington Geology. The information was compiled for use in a weights-of-evidence analysis...
Availability of Ground-Water Data for California, Water Year 1999
Julia A. Huff
2000, Fact Sheet 090-00
The Water Resources Division of the U.S. Geological Survey, in cooperation with Federal, State, and local water agencies, obtains a large amount of data pertaining to the ground-water resources of California each water year. These data constitute a valuable data base for developing an improved understanding of the water resources...
Implementation strategy for production of National Land-Cover Data (NLCD) from the Landsat 7 Thematic Mapper satellite
James Vogelmann, James D. Wickham
2000, Technical Report EPA/600/R-00/051
As environmental programs within and outside the federal government continue to move away from point-based studies to larger and larger spatial (not cartographic) scale, the need for land-cover and other geographic data have become ineluctable. The national land-cover mapping project of MRLC marks the first consistently classified conterminous land-cover data...
Recent planetary topographic mapping at the USGS, Flagstaff: Moon, Mars, Venus, and beyond
Randolph L. Kirk, Elpitha Howington-Kraus, Mark R. Rosiek
2000, Conference Paper, Proceedings of XIXth ISPRS Congress Technical Commission IV: Mapping and Geographic Systems
We are currently using stereophotogrammetric techniques to compile digital topographic models of parts of the Moon, Mars, Venus, and the asteroid Eros in support of the NASA program of planetary exploration. This work requires the synergistic use of the USGS digital cartographic software system ISIS for data ingestion and calibration...
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/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)...
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...
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...
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 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...
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...
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...
New eyes in the sky measure glaciers and ice sheets
Hugh Kieffer, Jeffrey S. Kargel, Roger G. Barry, Robert Bindschadler, Michael P. Bishop, David MacKinnon, Atsumu Ohmura, Bruce Raup, Massimo Antoninetti, Jonathan Bamber, Mattias Braun, Ian Brown, Denis Cohen, Luke Copland, Jon DueHagen, Rune V. Engeset, Blair Fitzharris, Koji Fujita, Wilfried Haeberli, Jon Oue Hagen, Dorothy Hall, Martin Hoelzle, Maria Johansson, Andi Kaab, Max Koenig, Vladimir Konovalov, Max Maisch, Frank Paul, Frank Rau, Niels Reeh, Eric Rignot, Andres Rivera, Martiyn De Ruyter de Wildt, Ted Scambos, Jesko Schaper, Greg Scharfen, Jack Shroder, Olga Solomina, David Thompson, Kees van der Veen, Trudy Wohlleben, Neal Young
2000, Eos, Transactions, American Geophysical Union (81) 265-271
The mapping and measurement of glaciers and their changes are useful in predicting sea-level and regional water supply, studying hazards and climate change [Haeberli et al., 1998],and in the hydropower industry Existing inventories cover only about 67,000 of the world's estimated 160,000 glaciers and are based on data collected over...
U.S. Geological Survey world petroleum assessment 2000: Description and results
USGS World Energy Assessment Team
2000, Data Series 60
The set of 4 CD-ROM discs, documents the U.S. Geological Survey World Petroleum Assessment 2000 and includes estimates of the quantities of conventional oil, gas, and natural gas liquids outside the United States that have the potential to be added to reserves in the next 30 years (1995 to 2025)....
Landslides in Alameda County, California: A digital database extracted from preliminary photointerpretation maps of surficial deposits by T.H. Nilsen in USGS Open-File Report 75-277
Sebastian Roberts, Michelle A. Roberts, Eileen M. Brennan
2000, Open-File Report 99-504
All or part of 25 7.5-minute quadrangles identifying 8465 landslides - largely slow-moving slides and earth flows - in Alameda County, California, have been converted to a digital-map database, compiled at 1:24,000 scale and plotted at 1:62,500 scale, that can be acquired from the U.S. Geological Survey over the Internet...