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

36999 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 811, results 20251 - 20275

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Hydrology of Area 61, Northern Great Plains and Rocky Mountain Coal Provinces, Colorado and New Mexico
P.O. Abbott, Arthur L. Geldon, Doug Cain, Alan P. Hall, Patrick Edelmann
1983, Open-File Report 83-132
Area 61 is located on the Colorado-New Mexico boundary in Huerfano and Las Animas Counties, Colorado, and Colfax County, New Mexico, and includes the Raton Mesa coal region. The 5 ,900-square-mile area is an asymmetrical structural trough bounded by the Rocky Mountains on the west and the Great Plains on...
Rainfall-runoff data from small watersheds in Colorado, October 1977 through September 1980
Betty J. Cochran, D.R. Minges, R.D. Jarrett, J.E. Veenhuis
1983, Open-File Report 82-873
Rainfall-runoff data from small watersheds in Colorado are being collected and analyzed for the purpose of defining the flood characteristics of these and other similar areas. Rainfall-runoff collected from October 1977 through September 1980 at a total of 37 urban stations, 10 Denver Federal Center stations, and 41 rural (or...
Suspended-sediment data in the Salt River basin, Missouri
Wayne R. Berkas
1983, Open-File Report 83-275
Suspended-sediment data collected at six stations in the Salt River basin during 1980-82 are presented. The estimated average annual suspended-sediment load is 1,390,000 tons per year from a geomorphic examination, and 1,330,000 tons per year from periodic sampling at Salt River near Monroe City, Mo. The suspended-sediment load from the...
Cost-effectiveness of the stream-gaging program in Maine
Richard A. Fontaine, M. E. Moss, J.A. Smath, W. O. Thomas
1983, Open-File Report 83-261
Data uses and funding sources were identified for the 51 continuous stream gages currently being operated in Maine. Three stream-gages were identified as having insufficient reason to continue their operation. Operation of these stations were identified as having uses specific only to short-term studies; it is recommended that these stations...
Groundwater resources of the Dallas-Monmouth area, Polk, Benton, and Marion Counties, Oregon
Joseph B. Gonthier
1983, Open-File Report 80-678
The Dallas-Monmouth area is in the west-central Willamette Valley of western Oregon. It comprises a total of about 400 square miles in Polk, Benton, and Marion Counties. Tertiary consolidated rocks underlie the entire area. These rocks include marine sandstone, siltstone, shale, tuff, basalt, and gabbro. In the lowlands, the consolidated...
Distribution of trace elements in drilling chip samples around a roll-type uranium deposit, San Juan Basin, New Mexico
H.C. Day, C.S. Spirakis, R. S. Zech, A. R. Kirk
1983, Open-File Report 83-56
Chip samples from rotary drilling in the vicinity of a roll-type uranium deposit in the southwestern San Juan Basin were split into a whole-washed fraction, a clay fraction, and a heavy mineral concentrate fraction. Analyses of these fractions determined that cutting samples could be used to identify geochemical halos associated...
Selected ground-water data in parts of Gilliam, Morrow, and Umatilla counties, Oregon
P.A. Smith, C. A. Collins, L.J. Olson
1983, Open-File Report 83-34
Over the last 20 years there has been a shift from dryland to irrigated agriculture in parts of Gilliam, Morrow, and Umatilla Counties in northeastern Oregon. Some irrigation water used in this area obtained from surface sources, but a significant amount is obtained from wells. The principal aquifer in the...
Spectral analysis of the 1976 aeromagnetic survey of Harrat Rahat, Kingdom of Saudi Arabia
H. Richard Blank, Hamdy S. Sadek
1983, Open-File Report 83-640
Harrat Rahat, an extensive plateau of Cenozoic mafic lava on the Precambrian shield of western Saudi Arabia, has been studied for its water resource and geothermal potential. In support of these investigations, the thickness of the lava sequence at more than 300 points was estimated by spectral analysis of low-level...
Saudi Arabian seismic deep-refraction profiles; final project report
J. H. Healy, W. D. Mooney, H. R. Blank, M. E. Gettings, W.M. Kohler, R.J. Lamson, L.E. Leone
1983, Open-File Report 83-390
In February 1978 a seismic deep-refraction profile was recorded by the U.S. Geological Survey along a 1000-km line across the Arabian Shield in western Saudi Arabia. The line begins in Mesozoic cover rocks near Riyadh on the Arabian Platform, leads southwesterly across three major Precambrian tectonic provinces, traverses Cenozoic rocks...