Stratigraphic framework of Lower and Upper Cretaceous rocks in central and eastern Montana
Steven M. Condon
2000, Data Series 57
This study shows the lithology, thickness, distribution, and correlation of Lower and Upper Cretaceous rocks in central and eastern Montana. The described stratigraphic units range from the Aptian Kootenai Formation (oldest) to the Maastrichtian Hell Creek Formation (youngest). An included text report describes the units, and most formations or members...
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)....
Giant porphyry-related metal camps of the world— A database
Felix E. Mutschler, Steve Ludington, Arthur A. Bookstrom
2000, Open-File Report 99-556
No abstract available....
Hydrologic and water-quality data for ground water along the Milk River Valley, north-central to northeastern Montana
Sean M. Lawlor
2000, Open-File Report 2000-79
Comparison of phase velocities from array measurements of Rayleigh waves associated with microtremor and results calculated from borehole shear-wave velocity profiles
Hsi-Ping Liu, David M. Boore, William B. Joyner, David H. Oppenheimer, Richard E. Warrick, Wenbo Zhang, John C. Hamilton, Leo T. Brown
2000, Bulletin of the Seismological Society of America (90) 666-678
Shear-wave velocities (VS) are widely used for earthquake ground-motion site characterization. VS data are now largely obtained using borehole methods. Drilling holes, however, is expensive. Nonintrusive surface methods are inexpensive for obtaining VS information, but not many comparisons with direct borehole measurements have been published. Because different assumptions are used...
U.S. Geological Survey World Wide Web Information
Water Resources Division, U.S. Geological Survey
2000, Fact Sheet 037-00
The U.S. Geological Survey (USGS) invites you to explore an earth science virtual library of digital information, publications, and data. The USGS World Wide Web sites offer an array of information that reflects scientific research and monitoring programs conducted in the areas of natural hazards, environmental resources, and cartog-raphy. This...
US GeoData Digital Elevation Models
Water Resources Division, U.S. Geological Survey
2000, Fact Sheet 040-00
Digital elevation model (DEM) data are arrays of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM) projection or to a geographic coordinate system. The grid cells are spaced at regular intervals along south to north profiles that are ordered from west to east. The U.S....
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...
Recent tectonics of the Blanco Ridge, eastern blanco transform fault zone
Robert Dziak, C.G. Fox, R. Embley, J.L. Nabelek, Jochen Braunmiller, Randolph A. Koski
2000, Marine Geophysical Research (21) 423-450
Bathymetric, hydro-acoustic, seismic, submersible, and gravity data are used to investigate the active tectonics of the eastern Blanco Transform Fault Zone (BTFZ). The eastern BTFZ is dominated by the ∼150 km long transform-parallel Blanco Ridge (BR) which is a right-lateral strike-slip fault bordered to the east and west by the Gorda...
Puerto Rico: Marine sediments, terrestrial and seafloor imagery, and tectonic interpretations
Kathryn M. Scanlon, Peter R. Briere
2000, Open-File Report 2000-6
Introduction: Puerto Rico is an island situated in the plate boundary zone between the Caribbean and the North American Plates. This is a geologically fascinating, tectonically active region, where the Caribbean Plate has over-ridden the North American Plate and is now sliding past it with strike-slip motion. The details of...
Map and database of Quaternary faults and folds in Argentina
Carlos Costa, M. N. Machette, R. L. Dart, H.E. Bastias, J.D. Paredes, L.P. Perucca, G.E. Tello, K. M. Haller
2000, Open-File Report 2000-108
No abstract available. ...
Geologic map and digital database of the Cougar Buttes 7.5' quadrangle, San Bernardino County, California
Robert E. Powell, Jonathan C. Matti, P. M. Cossette
2000, Open-File Report 2000-175
The Southern California Areal Mapping Project (SCAMP) of Geologic Division has undertaken regional geologic mapping investigations in the Lucerne Valley area co-sponsored by the Mojave Water Agency and the San Bernardino National Forest. These investigations span the Lucerne Valley basin from the San Bernardino Mountains front northward to the basin...
Basin level statistical properties of topographic index for North America
Praveen Kumar, Kristine L. Verdin, Susan K. Greenlee
2000, Advances in Water Resources (23) 571-578
For land–atmosphere interaction studies several Topmodel based land-surface schemes have been proposed. For the implementation of such models over the continental (and global) scales, statistical properties of the topographic indices are derived using GTOPO30 (30-arc-second; 1 km resolution) DEM data for North America. River basins and drainage...
Digital geologic map of the Butler Peak 7.5' quadrangle, San Bernardino County, California
Fred K. Miller, Jonathan C. Matti, Howard J. Brown, Digital preparation by P. M. Cossette
2000, Open-File Report 2000-145
Open-File Report 00-145, is a digital geologic map database of the Butler Peak 7.5' quadrangle that includes (1) ARC/INFO (Environmental Systems Research Institute) version 7.2.1 Patch 1 coverages, and associated tables, (2) a Portable Document Format (.pdf) file of the Description of Map Units, Correlation of Map Units...
Laboratory performance in the Sediment Laboratory Quality-Assurance Project, 1996-98
John D. Gordon, Carla A. Newland, Shane T. Gagliardi
2000, Water-Resources Investigations Report 99-4184
This report describes the results of the first 3 years of an ongoing study of sediment laboratories used by the U.S. Geological Survey (USGS). The sediment laboratories currently in operation constitute the entire USGS national laboratory system for sediment analyses. As with all environmental data, physical sediment data can be...
Map showing inventory and regional susceptibility for Holocene debris flows, and related fast-moving landslides in the conterminous United States
Earl E. Brabb, Joseph P. Colgan, Timothy C. Best
2000, Miscellaneous Field Studies Map 2329
Introduction Debris flows, debris avalanches, mud flows and lahars are fast-moving landslides that occur in a wide variety of environments throughout the world. They are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and often strike without warning. This map represents a significant effort...
Sidescan-sonar imagery, surface sediment samples, and surficial geologic interpretation of the southwestern Washington inner continental shelf based on data collected during Corliss Cruises 97007 and 98014
David C. Twichell, V.A. Cross, K. F. Parolski
2000, Open-File Report 2000-167
No abstract available....
Organic geochemistry data of Alaska
Charles N. complied by Threlkeld, Raymond C. Obuch, G.L. Gunther
2000, Data Series 59
In order to archive the results of various petroleum geochemical analyses of the Alaska resource assessment, the USGS developed an Alaskan Organic Geochemical Data Base (AOGDB) in 1978 to house the data generated from USGS and subcontracted laboratories. Prior to the AOGDB, the accumulated data resided in a flat data...
Chamber measurement of surface-atmosphere trace gas exchange: Numerical evaluation of dependence on soil interfacial layer, and source/sink products
G.L. Hutchinson, G.P. Livingston, R. W. Healy, Robert G. Striegl
2000, Journal of Geophysical Research D: Atmospheres (105) 8865-8875
We employed a three-dimensional finite difference gas diffusion model to simulate the performance of chambers used to measure surface-atmosphere tace gas exchange. We found that systematic errors often result from conventional chamber design and deployment protocols, as well as key assumptions behind the estimation of trace gas exchange rates...
Occurrence and load of selected herbicides and metabolites in the lower Mississippi River
Gregory M. Clark, Donald A. Goolsby
2000, Science of the Total Environment (248) 101-113
Analyses of water samples collected from the Mississippi River at Baton Rouge, Louisiana, during 1991–1997 indicate that hundreds of metric tons of herbicides and herbicide metabolites are being discharged annually to the Gulf of Mexico. Atrazine, metolachlor, and the ethane-sulfonic acid metabolite of alachlor (alachlor ESA) were the most frequently...
Phylogenetic sequence analysis, recombinant expression, and tissue distribution of a channel catfish estrogen receptor beta
Zhenfang Xia, William L. Gale, Xiaotian Chang, David Langenau, Reynaldo Patino, Alec G. Maule, Llewellyn D. Densmore
2000, General and Comparative Endocrinology (118) 139-149
An estrogen receptor β (ERβ) cDNA fragment was amplified by RT-PCR of total RNAextracted from liver and ovary of immature channel catfish. This cDNA fragment was used to screen an ovarian cDNA library made from an immature female fish. A clone was obtained that...
U.S. Geological Survey mineral databases; MRDS and MAS/MILS
E.J. McFaul, G.T. Mason, W.B. Ferguson, B. R. Lipin
2000, Data Series 52
These two CD-ROM's contain the latest version of the Mineral Resources Data System (MRDS) database and the Minerals Availability System/Minerals Industry Location System (MAS/MILS) database for coverage of North America and the world outside North America. The records in the MRDS database each contain almost 200 data fields describing metallic...
Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado
D. J. Bove, Ken Hon, K. E. Budding, J. F. Slack, L.W. Snee, R. A. Yeoman
2000, Open-File Report 99-347
Twenty-five new 40Ar/39Ar ages from volcanic rocks and veins in the western San Juan Mountains clarify relationships between volcanism and mineralization in this classic area. Five calc-alkaline ash-flow sheets erupted from caldera sources (Ute Ridge, Blue Mesa, Dillon Mesa, Sapinero Mesa, and Crystal Lake Tuffs) from 28.6 to 27.6 Ma. This is a...
Radar structure of earthquake-induced, coastal landslides in Anchorage, Alaska
Walter Barnhardt, Robert E. Kayen
2000, Environmental Geosciences (7) 38-45
Ground-penetrating radar (GPR) was used to investigate the internal structure of two large landslides in Anchorage, Alaska that resulted from the great 1964 earthquake. The Government Hill and Turnagain Heights landslides occurred in similar stratigraphic and geographic settings, yet the style of ground deformation is different at each site. GPR...
Monitoring beach morphology changes using small-format aerial photography and digital softcopy photogrammetry
Cheryl Hapke, Bruce M. Richmond
2000, Environmental Geosciences (7) 32-37
Current methods of monitoring beach morphology changes commonly involve the establishment of Global Positioning System profiles that are surveyed on a regular basis. Although this method produces precise measurements of coastal topography, it is costly in time and effort and may result in large data gaps between profiles. Much of...
