Mahd Adh Dhahab: Precambrian epithermal gold deposit, Kingdom of Saudi Arabia
Robert W. Luce, James R. O’Neil, R.O. Rye
1979, Open-File Report 79-1190
The largest and most productive mine in Saudi Arabia in ancient and modern times has been Mand adh Dhahab. Country rocks in the district are pyroclastic and clastic rocks that belong to the Halaban group of late Precambrian age. From oldest to youngest, the units are: andesite, lower agglomerate, lower...
Preliminary analysis of clay gouge from a well in the San Andreas fault zone in central California
Richard Liechti, Mark D. Zoback
1979, Open-File Report 79-861
Drilling into the San Andreas fault zone has begun in central California as part of the U.S.G.S. program of fault zone studies. The purpose of drilling into the fault zone is threefold. First, it will allow recovery of material from depth in order to determine the composition of both solid...
Flood of May 9, 1978, Montgomery, Alabama
G. H. Nelson, L.A. Bohman
1979, Open-File Report 79-218
Coal resource occurrence and coal development potential maps of the southeast quarter of the Woodside 15-minute quadrangle, Emery County, Utah
AAA Engineering and Drafting Inc.
1979, Open-File Report 79-898
No abstract available....
Flood of July 5-7, 1978, on the South Fork Zumbro River at Rochester, Minnesota
V.J. Latkovich
1979, Open-File Report 79-1583
The intense thunderstorm of July 5-6, 1978, caused record flooding on the South Fork Zumbro River at Rochester, Minnesota. The peak discharge on July 6 was 30,500 cubic feet per second compared with 19,600 cubic feet per second for the flood of March 1965, which was the largest previously known....
Measured stratigraphic sections of Jurassic San Rafael Group and adjacent rocks in San Juan County, Utah
James Clifton Wright, Dayton Delbert Dickey
1979, Open-File Report 79-1000
Preliminary geologic map and coal resources of the Sulphur Creek Reservoir quadrangle, Uinta County, Wyoming
Marvin L. Schroeder
1979, Open-File Report 79-1631
No abstract available....
Audio-magnetotelluric data log and station-location map for Vulcan Hot Springs Known Geothermal Resource Area, Idaho
Carl L. Long, Vernon Lewis
1979, Open-File Report 79-1616
No abstract available....
Chemical analysis and geochemical associations in Devonian black shale core samples from Martin County, Kentucky; Carroll and Washington counties, Ohio; Wise County, Virginia; and Overton County, Tennessee
Joel S. Leventhal
1979, Open-File Report 79-1503
Core samples from Devonian shales from five localities in the Appalachian Basin have been analyzed for major, minor, and trace constituents. The contents of major elements are rather similar; however, the minor constituents, organic C, S, PO4, and CO3, show variations by a factor of 10. Trace elements Mo, Ni,...
Audio-magnetotelluric data log and station-location map for the Silver Star Hot Springs area, Montana
Carl L. Long, R. Michael Senterfit
1979, Open-File Report 79-1307
During a period of 3 days, 22 audio-magnetotelluric (AMT) soundings were made in the area of the Silver Star Hot Springs, Mont. (fig. 1). These soundings were made to assess the geothermal potential along a northern trend of. hot springs from New Biltmore Hot Springs north to Broadwater Hot Springs,...
Water-resources data, 1970-75, for Perris Valley and vicinity, Riverside County, California
David J. Lang
1979, Open-File Report 79-1256
In 1969 the U.S. Geological Survey began in Perris Valley, Calif., to determine changes in the hydrologic regime as a rural area becomes urbanized. The investigations spanned several years when precipitation was below normal in most of southern California. Surface-water records were collected for a 6-year period at 21 sites, and...
U.S. Geological Survey activities in New York, 1979
Anne Finch, Paula Gori
1979, Open-File Report 80-51
This report describes the work of the U.S. Geological Survey and summarizes projects conducted in New York during 1979. Many of these projects are continuing into the 1980's. The major programs provide basic scientific information concerning water, land, and mineral resources. The Survey also supervises the exploration for mineral fuels...
Organic matter and sandstone-type uranium deposits: a primer
Joel S. Leventhal
1979, Open-File Report 79-1310
Organic material is intimately associated with sandstone-type uranium deposits in the western United States.. This report gives details of the types of organic matter and their possible role in producing a uranium deposit. These steps include mobilization of uranium from igneous rocks, transportation from the surface, concentration by organic matter,...
Uranium and organic matters: use of pyrolysis-gas chromatography, carbon, hydrogen, and uranium contents to characterize the organic matter from sandstone-type deposits
Joel S. Leventhal
1979, Open-File Report 79-942
Organic matter seems to play an important role in the genesis of uranium deposits in sandstones in the western United States. Organic materials associated with ore from the Texas coastal plain, Tertiary basins of Wyoming, Grants mineral belt of New Mexico, and the Uravan mineral belt of Utah and Colorado...
Audio-magnetotelluric data log and station-location map for the Ennis Hot Springs area, Montana
Carl L. Long, R. Michael Senterfit
1979, Open-File Report 79-1308
Four days were spent collecting 20 audio-magnetotelluric (AMT) soundings in the area of the Ennis Hot Springs, Mont. (fig. 1). These soundings were made to assist in a regional evaluation of the geothermal potential of the Ennis Hot Springs area.Scalar resistivities from the data log (table 1) are indicative of...
Relation between proposed developments of water resources and seepage from the All-American Canal, eastern Imperial Valley, California
Omar J. Loeltz, S. A. Leake
1979, Open-File Report 79-744
A two-layer digital model designed for this study indicated that sealing of the Coachella branch of the All-American Canal would cause an eventual increase in seepage from the All-American Canal of about 15,000 acre-feet annually. Sealing of both the Coachella Canal and the segment of the All-American Canal between Pilot...
Physical and chemical properties of the Potomac River and environs, August-September 1977
Richard E. Smith, Raynol E. Herndon
1979, Open-File Report 79-1635
Ground-water-quality data from the northern Powder River Basin, southeastern Montana
Roger W. Lee
1979, Open-File Report 79-1331
Water-quality data collected during 1973-77 for hydrologic studies in the northern Powder River basin of southeastern Montana provide a data base for shallow ground water. The 665 water samples collected were analyzed for major cations and anions. Of the samples, 516 were from wells and 149 were from springs. About...
Titaniferous magnetite in the layered intrusive complex at Lakathah, Kingdom of Saudi Arabia
Conrad Martin, Ralph Jackson Roberts, D. B. Stoeser
1979, Open-File Report 79-1210
The Lakathah layered intrusive complex about 90 km east of Qunfudhah contains significant resources of low-grade titanium-bearing rock. The complex is about 10 km in diameter and consists of three principal units: an outer syenite ring, an intermediate diorite-gabbro zone, and a central pyroxenite-hornblendite core. The principal mineralization zone is...
Geologic and coal outcrop map of the Weston quadrangle, Las Animas County, Colorado
Walter Danilchik
1979, Open-File Report 79-927
No abstract available....
Generalized geologic map of the Rio Vista 15-minute Quadrangle, California
Brian F. Atwater
1979, Open-File Report 79-853
Hydrocarbon prospects for the Navarin and the Aleutian Basin provinces
Michael S. Marlow, Alan K. Cooper
1979, Open-File Report 79-1667
Near-surface heat flow in Saline Valley, California
Charles W. Mase, S.P. Galanis, Robert J. Munroe
1979, Open-File Report 79-1136
With the exception of values from one borehole drilled at Palm Spring and three boreholes drilled around Saline Valley dry lake, eight new heat-flow values in Saline Valley, California, are within or somewhat below the range one would expect for this region of the Basin and Range heat-flow province. The...
Accessory opaque oxides from hybrid granitoid rocks of the southern Snake Range, Nevada
Donald E. Lee, Richard E. Van Loenen
1979, Open-File Report 79-1608
Analytical data are presented for 12 magnetite and 6 ilmenite samples recovered from hybrid granitoid rocks of the southern Snake Range, Nevada. The magnetites are unusual for their very low contents of TiO2 and for their similarity of composition over a range of petrologic types. The ilmenites are somewhat unusual...
Preliminary study of the geotechnical properties of the Fort Union Formation from the White Tail Butte drill holes 76-103 and 76-108 near Recluse, Wyoming
Jack K. Odum, James J. Sebesta
1979, Open-File Report 79-1137
