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

165871 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 5125, results 128101 - 128125

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Earliest Phanerozoic or latest Proterozoic fossils from the Arabian Shield, Kingdom of Saudi Arabia
Preston Cloud, S.M. Awramik, Karen Morrison, D.G. Hadley
1979, Open-File Report 79-1186
We report here the first biologically definable fossils from pre-Saq (pre-Middle Cambrian) rocks of the Arabian Shield. They include the distinctive helically coiled tubular filaments of the oscillatorialean blue-green alga Obruchevella parva as well as two size classes of spheroidal unicells of uncertain affinity. Also present is the conical stromatolite...
Chemical analyses of waters from geysers, hot springs, and pools in Yellowstone National Park, Wyoming, from 1974 to 1978
J. M. Thompson, Sandhya Yadav
1979, Open-File Report 79-704
Waters from geysers, hot springs, and pools of Yellowstone National Park have been analyzed by numerous investigators extending back nearly ten decades. Large compilations of complete major ion analyses of the thermal waters have been reported by Gooch and Whitfield (1888) 38 analyses; Allen and Day (1935) 94 complete and...
Exploratory drilling during 1979 in the McCallum coal field, Jackson County, Colorado
Thomas J. Piccirilli
1979, Open-File Report 79-1629
Rotary drilling of two drill holes in the McCallum coal field, Jackson County, Colorado, was completed by the United States Geological Survey (USGS) in July 1979. The holes are within the area of the short-term lease application. C-27931 held by Wyoming Fuels of Lakewood, Colorado.Drill-hole GNW1 is located in T....
Preliminary report on the energy resource position of the Republic of Korea
M. J. Bergin
1979, Open-File Report 79-1438
The Republic of Korea has meager resources of energy minerals. Only hydroelectric power and coal were listed as sources of energy indigenous to Korea in the report of the 1967 World Energy Conference. Small reserves of thorium have been estimated and the discovery of uranium was reported in 1977 (A....
Geologic map of the south side of the Moon
D.E. Wilhelms, K. A. Howard, H. G. Wilshire
1979, IMAP 1162
The map of the lunar region below lat 45˚ S. is the sixth part of a complete geologic recon<span class="NormalTextRun...
Post-orogenic peralkaline and calc-alkaline granites and associated mineralization of the Arabian Shield, Kingdom of Saudi Arabia
D. B. Stoeser, James Earl Elliott
1979, Open-File Report 79-1323
Following a long period of island arc-like orogenic activity, post-orogenic granites of Pan-African age (670-550 m.y.) were emplaced throughout the Arabian Shield. Most of these rocks are typical subsolvus calc-alkaline biotite monzogranite. The early Pan-African granites are associated with widespread small tholeiitic gabbro intrusions, many of which are layered. The...
Formation and resulfidization of a South Texas roll-type uranium deposit
Martin B. Goldhaber, Richard L. Reynolds, Robert O. Rye
1979, Open-File Report 79-1651
Core samples from a roll type uranium deposit in Live Oak County, south Texas have been studied and results are reported for Se, Mo, FeS2 and organic-carbon distribution, sulfide mineral petrology, and sulfur isotopic composition of iron-disulfide phases. In addition, sulfur isotopic compositions of dissolved sulfate and sulfide from the...
Origin of marcasite and its implications regarding the genesis of roll-front uranium deposits
Martin B. Goldhaber, Richard L. Reynolds
1979, Open-File Report 79-1696
Study of five roll-type uranium deposits (three in Texas and two in Wyoming) has resulted in the recognition of ore-stage marcasite in each deposit. Ore-stage marcasite is identified by its close association with uranium- and vanadium-bearing phases in the ore zones; by its close association with ferroselite at and near...
Lake Ontario geological and geophysical data sources
Deborah R. Hutchinson, Richard J. Wold
1979, Miscellaneous Field Studies Map 1103
A bibliography of various geological and geophysical data sources was compiled as part of an overall effort to evaluate the status of research on the Great Lakes.  We hope that such a summary will be a catalyst for additional work and be an aid in planning future work.  Our presentation...