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

36967 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 1217, results 30401 - 30425

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
First EROS/AID International Course on remote sensing
Raymond W. Fary
1974, Open-File Report 74-195
The First International Training Course on Remote Sensing held at the Earth Resources Observations Systems (EROS) Data Center in Sioux Falls, South Dakota, was sponsored by the Agency for International Development (AID), U.S. Department of State, from June 4 to 27, 1973. This course was conducted by the U.S. Geological...
Posssible extension of mineral belts, northern part of Coeur d'Alene district, Idaho
Garland Bayard Gott, Joseph Moses Botbol
1974, Open-File Report 74-67
The ore deposits in the northern part of the Coeur d'Alene district are located within rocks of the Belt Supergroup that have been intruded by Cretaceous quartz monzonites. Lead-zinc-silver replacement veins constitute most of the deposits. The geometry of the district has been modified by post-ore faulting along the Osburn,...
Geothermal gas sampling methods
Alfred Hemingway Truesdell, K.L. Pering
1974, Open-File Report 74-361
The following method of geothermal gas collection meets our needs for chemical and isotopic gas analyses, requires a minimum of special equipment in the field, and provides field analytical data of assistance in a sampling program....
Floodflow characteristics of Fourche Creek at Interstate Highway 430, in southwest Little Rock, Arkansas
R.C. Gilstrap, J.N. Sullavan
1974, Open-File Report 74-343
The Arkansas State Highway Department is constructing Interstate Highway 430 (1-430) across Fourche Creek in southwest Little Rock. The Highway Department requested the U.S. Geological Survey to determine the elevation, the discharge, and the frequency of the flood of April 21, 1974, and the elevation, the discharge, and the backwater...
Water-quality and geohydrologic data at two sanitary landfill sites near Anchorage, Alaska
Chester Zenone, D.E. Donaldson
1974, Open-File Report 74-1131
Water-quality and geohydrologic data were collected at two sanitary landfill (solid-waste disposal) sites near Anchorage, Alaska. The study was undertaken by the U.S. Geological Survey in cooperation with the Greater Anchorage Area Borough and the U.S. Air Force. The purpose of the study was to evaluate the environmental effects of...
Straight line fitting of an observation path by least normal squares
William H. Kirby
1974, Open-File Report 74-187
In curtain hydro graphic problems, and perhaps in other geophysical problems, information must be collected as profiles along straight-line courses. When the inevitable deviations from perfect linearity occur, one must then find the straight line course that best approximates the actual observation path. Classical least squares (regression) does not solve...
A program to compute aquifer-response coefficients
Thomas Maddock
1974, Open-File Report 75-612
An alternating direction technique is used to solve finite difference equations approximating the flow of water in an aquifer. The solutions produce response coefficients relating pumping from wells to drawdowns within those wells. The product of the response coefficient with the pumping values produces a linear algebraic technological function that...