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

165653 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 5748, results 143676 - 143700

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Analyses of rock and stream-sediment samples from the Craig C-6 Quadrangle, Alaska
Allen L. Clark, Henry C. Berg, Donald A. Grybeck, A. Thomas Ovenshine, Raymond Wehr
1970, Open-File Report 70-70
Analytical data for 26 rock and 8 stream-sediment samples from the Craig C-6, 1:63,360-scale quadrangle are presented in this report, together with a statistical treatment of the data. The samples were collected in 1969 as part of the Heavy Metals Program of the U.S. Geological Survey.The most comprehensive discussion of...
Annotated bibliography on artificial recharge of ground water, 1955-67
Donald C. Signor, Douglas J. Growitz, William Kam
1970, Water Supply Paper 1990
Artificial ground-water recharge has become more important as water use by agriculture, industry, and municipalities increases. Water management agencies are increasingly interested in potential use of recharge for pollution abatement, waste-water disposal, and re-use and reclamation of locally available supplies. Research projects and theoretical analyses of operational recharge systems show...
Economic geology of the Zipaquira quadrangle and adjoining area, Department of Cundinamarca, Colombia
Donald H. McLaughlin Jr., Marino Arce Herrera
1970, Open-File Report 70-208
At least four evaporite sequences are interbedded with Cretaceous strata in the Bogotga area of the Cordillera Oriental of Colombia. The easternmost and oldest evaporite interval is of probable Berriasian-Valanglnian age; the next oldest is of probable late Barremian-early Aptian age, and is followed by a possible late Aptian sequence....
Mineral resources of the southern half of Zone III Santander, Norte de Santander and Boyaca, Colombia
Dwight Edward Ward, Richard Goldsmith, Bruna B. Cruz, Jaime Restrepo, A. Hernan
1970, Open-File Report 70-359
The areas covered by this report lies in the eastern Cordillera of the Colombian Andes in the region around Bucaramanga. This part of the eastern Cordillera consists of a structurally complex core of metamorphic and igneous rocks of Precambrian to Mesozoic age, flanked to east and west by faulted and...
Geologic log and chemical data, diamond drill hole 1, Samrah, Kingdom of Saudi Arabia
P. K. Theobald Jr., Charles E. Thompson, Henry D. Horn
1970, Open-File Report 70-324
Diamond drill hole number 1 at the Samrah ancient mine, Kingdom of Saudi Arabia penetrated a series of mineralized fractures. Lead, zinc, and silver are the principal ore metals and galena and sphalerito are the ore minerals identified to date. Throughout the core there is a somewhat better correlation of...
Preliminary description of cores, chemical analyses of lignite beds, and map showing locations of holes drilled in Grant, Hettinger, Morton, and Stark Counties, North Dakota
H.L. Smith
1970, Open-File Report 70-308
Nineteen exploratory holes were drilled in Grant, Hettinger, Morton, and Stark Counties, N. Dak. (fig. 1), for the U.S. Geological Survey from June 7 to September 15, 1966. This prospect drilling was undertaken to gather data on the thickness, quality, and extent of lignite beds and the lithologic characteristics of...