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

184635 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 7019, results 175451 - 175475

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology of anthracite in the western part of the Ashland quadrangle, Pennsylvania
Boyd R. Haley, Harold H. Arndt, Howard E. Rothrock, Holly C. Wagner
1953, Coal Map 13
The Western Middle anthracite field is one of four structural basins containing anthracite in eastern Pennsylvania.  This report describes the geology of the part of the Western Middle field that lies in the western half of the Ashland quadrangle.  (See index map, sheet 2.)  The mapped area covers about 19...
Domestic phosphate deposits
V.E. McKelvey, J.B. Cathcart, Z. S. Altschuler, R. W. Swanson, Katherine Lutz
1953, Open-File Report 53-165
Most of the worlds phosphate deposits can be grouped into six types: 1) igneous apatite deposits; 2) marine phosphorites; 3) residual phosphorites; 4) river pebble deposits; 5) phosphatized rock; and 6) guano. The igneous apatites and marine phosphorites form deposits measurable in millions or billions of tons; the residual deposits...
Water-power resources of Crystal River, Colorado
Fred Forrest Lawrence
1953, Circular 292
The Crystal River drains the western slope of the Elk Mountains, a relatively small range in the southern Rocky Mountain province, and flows into the Roaring Fork 13 miles southeast of Glenwood Springs, Colo. The lower 7 miles of the valley is cultivated, but upstream from this stretch the valley...
Preliminary report of the Centennial Range, Montana-Idaho
Frederick Sauli Honkala
1953, Open-File Report 53-123
Phosphate rock is present in the Phosphoria formation of Permian age in the Centennial Range of southwestern Montana and adjoining parts of Idaho. A Study was made to map the Phosphoria formation, study its stratigraphy, and to ascertain the reserves and mining problems. In the Centennial Range the Phosphoria formation...
A preliminary report of geochemical investigations in the Blackbird District
F. C. Canney, H. E. Hawkes, G.M. Richmond, J. S. Vhay
1953, Open-File Report 53-31
This paper reviews an experimental geochemical prospecting survey in the Blackbird cobalt-copper mining district. The district is in east-central Idaho, about 20 miles west-southwest of Salmon. The area is one of deeply weathered nearly flat-topped upland surfaces cut by steep-walled valleys which are tributary to the canyon of Panther Creek....
Stratigraphy and structure of the Miners Mountain area, Wayne County, Utah
Robert G. Luedke
1953, Open-File Report 53-161
The Miners Mountain area includes about 85 square miles in Wayne County, south-central Utah. The area is semiarid and characterized by cliffs and deep canyons. Formations range in age from Permian to Upper Jurassic and have an aggregate thickness of about 3,500 feet. Permian formations are the buff Coconino sandstone and...