Principal facts for a gravity survey of the Double Hot Springs Known Geothermal Resource Area, Humboldt County, Nevada
Donald L. Peterson, Harold E. Kaufmann
1978, Open-File Report 78-107-A
During July 1977, forty-nine gravity stations were obtained in the Double Hot Springs Known Geothermal Resource Area and vicinity, northwestern Nevada. Elevations for twenty-two stations were estimated from lake bed topographic contours. Horizontal positions for these stations were determined from topographic maps and vehicle odometer. Elevations for stations DBLD34 and...
Four maps showing lithologic distributions of selected parts of the Jurassic San Rafael Group and related units, Utah, Colorado, Arizona, and New Mexico
James C. Wright
1978, Open-File Report 78-572
No abstract available....
Ore controls at the Mahd adh Dhahab gold mine, Kingdom of Saudi Arabia
Ronald G. Worl
1978, Open-File Report 78-778
Mahd adh Dhahab is the largest of numerous ancient gold mines scattered through the Precambrian shield of Saudi Arabia and the only one with recent production. Free gold and silver, tellurides, pyrite, galena, sphalerite, and chalcopyrite are in and associated with quartz veins and quartz veinlet stockworks. Country rocks consist...
Mineral exploration, Mahd adh Dhahab District, Kingdom of Saudi Arabia
Ronald G. Worl
1978, Open-File Report 78-1073
Mahd adh Dhahab is the largest of numerous ancient gold mines scattered through the Precambrian shield of Saudi Arabia and the only one with recent production. During the period 1939-54, 765,768 fine ounces of gold and 1,002,029 ounces of silver were produced from the mines by the Saudi Arabian Mining...
Least-squares refinement of powder diffraction data for unit cell parameters: Program listing for DEC 10 computer
George Van Trump, Phoebe L. Hauff
1978, Open-File Report 78-431
This FORTRAN computer program is a time-sharing version of the classic program of Appleman and Evans (1973) and Evans, Appleman, and Handwerker (1963), which indexes powder patterns and refines unit-cell dimensions. The program, originally written to be processed in batch mode for an IBM computer, was modified to run in...
Mallets Creek Marsh, Lake Champlain: A plant-nutrient study
John T. Turk
1978, Open-File Report 78-462
Nitrogen and phosphorus dissolved in the interstitial water of Mallets Creek Marsh sediments supply about 42 percent of the nitrogen and about 9 percent of the phosphorus used by rooted macrophytes within the marsh. These percentages may become larger during middle and late summer, when water inflow to the marsh...
Asbestos occurrences in serpentinites of the Hamdah area, Kingdom of Saudi Arabia
Lawrence Frederick Rooney, Ziad H. Al-Koulak
1978, Open-File Report 79-360
A cluster of serpentinite bodies centered at 19°00'N. and 43°45'E., near the village of Hamdah, contain many occurrences of the fibrous asbestos minerals chrysotile and anthophyllite. In the south-central part of the area, near the ancient Hajr gold mine (18°54'45"N. and 43°40'30"E.), the fiber is of fair quality and grade...
Longitudinal turbidity structures in a bar-built coastal plain estuary, Corpus Christi Bay, Texas
Gerald L. Shideler
1978, Open-File Report 78-789
Corpus Christi Bay is a shallow, bar-built variety of estuary that is characteristic of the South Texas Coastal Plain. On the basis of synoptic in situ measurements of light transmissivity and suspended-sediment concentrations at six monitoring stations, a time sequence of six turbidity structures was established along the longitudinal trend...
Aggregate resources of the Abha-Khamis Mushayt area: A preliminary report, Kingdom of Saudi Arabia
Lawrence Frederick Rooney, Ziad H. Al-Koulak
1978, Open-File Report 78-775
The area within 30 km of Abha and Khamis Mushayt in the Asir province of the Kingdom of Saudi Arabia is experiencing rapid growth and a corresponding strong demand for construction materials, including aggregate. The major source of aggregate at present is wadi gravels, supplemented by shallow pits in bedrock....
Chemical, physical, biochemical, and bacteriological characteristics at selected stream sites in Puerto Rico, 1976-77
Ferdinand Quinones-Marquez, Pedro Vasquez, Rafael Pena Cortes
1978, Open-File Report 78-445
In 1969, the Caribbean District of the U.S. Geological Survey, in cooperation with the Commonwealth of Puerto Rico, initiated the operation of a network to monitor some parameters indicative of water-quality changes at selected stream sites. The initial network consisted of 18 stations, which were expanded to 20 in 1971,...
Biostratigraphic guide to Upper Devonian and Mississippian rocks along the Wasatch Front and Cordilleran hingeline, Utah
Charles A. Sandberg, Raymond Gutschick
1978, Open-File Report 78-351
This paper provides a guide to measured sections of Upper Devonian (Famennian) and Mississippian (Kinderhookian, Osagean, and Meramecian) rocks visited on a three-day field trip between Provo, Utah, on the Wasatch Front and the Crawford Mountains in the Overthrust Belt along the Utah-Wyoming State line. The field trip, sponsored by...
A prototype design for microprocessor based digital telemetry transmitter for low frequency data
J. Roger, R. Cutler, M. Varon
1978, Open-File Report 78-674
A prototype microprocessor based digital transmitter with low power requirements has been designed and built for use in dial-up telemetry applications. The processor used is the 8 bit RCA COSMAC. Input data is an analog signal in the range of -5 volts to +5 volts which is digitized to 12-bit...
Storm-water data for Bear Creek basin, Jackson County, Oregon 1977-78
Loren A. Wittenberg
1978, Open-File Report 79-217
Storm-water-quality samples were collected from four subbasins in the Bear Creek basin in southern Oregon. These subbasins vary in drainage size, channel slope, effective impervious area, and land use. Automatic waterquality samplers and precipitation and discharge gages were set up in each of the four subbasins. During the period October...
FORTRAN computer program for calculation of stress-intensity factors, stresses, and displacements associated with a fluid-pressurized fracture near the Earth's surface
David D. Pollard
1978, Open-File Report 78-160
Geophysical logs of 15 coal test holes drilled in the Kemmerer coal field, Uinta County, Wyoming
Marvin L. Schroeder
1978, Open-File Report 78-658
Geology and hydrology of western Crawford County, Pennsylvania
George R. Schiner, John T. Gallaher
1978, Open-File Report 78-204
Measured sections of the lower member and Salt Wash Member of the Morrison Formation (Upper Jurassic) in the Henry Mountains Mineral Belt of southern Utah
Fred Peterson
1978, Open-File Report 78-1094
Analyses of natural gases from Gulf of Mexico Outer Continental Shelf
Dudley D. Rice, Charles N. Threlkeld
1978, Open-File Report 78-428
This report contains analyses and related source data for natural gas samples from 32 fields in the Gulf of Mexico OCS (Outer Continental Shelf).The interpretation of this data, along with analyses from other fields in Texas, is still in progress....
Preparation of a geologic photo map and hydrologic study of the Yemen Arab Republic
Maurice J. Grolier, M. Ibrahim, W.C. Overstreet, G. Chase Tibbitts, D.F. Davidson
1978, Open-File Report 78-770
Uranium in sedimentary rocks, with emphasis on facies control in sandstone-type deposits
Christine E. Turner-Peterson, Fred Peterson
1978, Open-File Report 78-359
The Bangui magnetic anomaly, Central African Empire: Final trip report
Robert D. Regan
1978, Open-File Report 78-1006
For the past 5 years the U. S. Geological Survey (USGS) and the National Aeronautics and Space Administration (NASA) have been involved in a joint project concerning the analysis of satellite magnetometer data for geological studies. The principal objectives of this project have been the detection, identification, and interpretation of...
Description of wells at Beale Air Force Base and vicinity, California
Gerald L. Rockwell
1978, Open-File Report 78-10
The study area occupies approximately 168 square miles of the Sacramento Valley. The study area boundary is the Yuba River in the north, the Feather River in the west, the Bear River in the south, and the Sierra Nevada foothills in the east. Between December 1976 and March 1977, 640 wells...
Notes on the availability of mid-Atlantic multichannel seismic reflection profiles 11 and 12-A, -B, -C, and -D
John Stevens Schlee
1978, Open-File Report 78-474
Available are two multichannel profiles collected by Digicon Geophysical Corporation in 1975 using a 48-channel streamer (3600 m long). and a 27.9 cu. liter air gun array. They were processed in Denver on the Phoenix "I" by William C. Patterson. The processing included demultiplexing and resampling, geometry and common-depth-point definition,...
Map showing surface faults in the southeastern Houston metropolitan area, Texas
E.R. Verbeek, U. S. Clanton
1978, Open-File Report 78-797
No abstract available....
A FORTRAN algorithm for correcting normal resistivity logs for borehole diameter and mud resistivity
James Henry Scott
1978, Open-File Report 78-669
The FORTRAN algorithm described in this report was developed for applying corrections to normal resistivity logs of any electrode spacing for the effects of drilling mud of known resistivity in boreholes of variable diameter. The corrections are based on Schlumberger departure curves that are applicable to normal logs made with...
