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

165605 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 4614, results 115326 - 115350

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Leaching study of oil shale in Kentucky: With a section on hydrologic reconnaissance of the oil shale outcrop in Kentucky
Samuel S. Leung, D.W. Leist, R. W. Davis, Steven Cordiviola
1984, Water-Resources Investigations Report 84-4073
Oil shales in Kentucky are rocks of predominantly Devonian age. The most prominant are the Ohio, Chattanooga, and New Albany Shales. A leaching study was done on six fresh oil shale samples and one retorted oil shale sample. Leaching reagents were distilled water, 0.0005 N sulfuric acid, and 0.05 N...
Sediment yields in eastern Montana; summary of data and proposed techniques for estimating sediment yields from small, ungaged watersheds
J. H. Lambing
1984, Water-Resources Investigations Report 84-4200
Sediment-yield data for 121 sites in eastern Montana have been compiled from results of studies conducted by various Federal, State, and private agencies. Methods used to determine mean annual sediment yields included reservoir sedimentation surveys, suspended-sediment sampling in streams, and estimates of gross erosion and indirect estimation based on physical...
Oregon ground-water quality and its relation to hydrogeologic factors — A statistical approach
T. L. Miller, J. B. Gonthier
1984, Water-Resources Investigations Report 84-4242
An appraisal of Oregon ground-water quality was made using existing data accessible through the U.S. Geological Survey computer system. The data available for about 1,000 sites were separated by aquifer units and hydrologic units. Selected statistical moments were described for 19 constituents including major ions. About 96 percent of all...
State hydrologic unit maps
P. R. Seaber, F.P. Kapinos, G.L. Knapp
1984, Open-File Report 84-708
A set of maps depicting approved boundaries of, and numerical codes for, river-basin units of the United States has been developed by the U.S. Geological Survey. These ' State Hydrologic Unit Maps ' are four-color maps that present information on drainage, culture, hydrography, and hydrologic boundaries and codes: (1) the...
Phosphate rock resources of the United States
James Bachelder Cathcart, Richard Porter Sheldon, Robert A. Gulbrandsen
1984, Circular 888
In 1980, the United States produced about 54 million tons of phosphate rock, or about 40 percent of the world's production, of which a substantial amount was exported, both as phosphate rock and as chemical fertilizer. During the last decade, predictions have been made that easily ruinable, low-cost reserves of...