A table of photopeaks useful in nuclear geophysics
Allan B. Tanner, Frank E. Senftle
1978, Open-File Report 78-531
The table lists full-energy, single-escape, and double-escape photopeak energies corresponding to about 1800 x- and gamma rays derived from natural radioactivity, X-ray fluorescence, neutron reactions, and induced radioactivity. Photon lines have been selected on the basis of their importance in borehole logging by nuclear methods. The mode of production of...
Characteristics of the Landsat Multispectral Data System
James V. Taranik
1978, Open-File Report 78-187
Landsat satellites were launched into orbit in 1972 and 1975. Additional Landsat satellites are planned for launch in 1978 and 1981. The satellites orbit the Earth at an altitude of approximately 900 km and each can obtain repetitive coverage of cloud-free areas every 18 days. A sun-synchronous orbit is used...
Principles of computer processing of Landsat data for geologic applications
James V. Taranik
1978, Open-File Report 78-117
The main objectives of computer processing of Landsat data for geologic applications are to improve display of image data to the analyst or to facilitate evaluation of the multispectral characteristics of the data. Interpretations of the data are made from enhanced and classified data by an analyst trained in geology....
Analyses and descriptions of geochemical samples, Mountain Lake Wilderness Study Area, Virginia and West Virginia
Leung Mei, J.D. Fletcher, Norma Rait, F. G. Lesure
1978, Open-File Report 78-1077-B
Semiquantitative emission spectrographic analyses for 64 elements on 95 stream sediment and 122 rock samples from Mountain Lake Wilderness Study Area, Giles and Craig Counties, Virginia and Monroe County, West Virginia, are reported here in detail. Locations for all samples are in Universal Transverse Mercator (UTM) coordinates. Brief descriptions of...
Relation of Mercury, Uranium, and Lithium Deposits to the McDermitt Caldera Complex, Nevada-Oregon
James J. Rytuba, Richard K. Glanzman
1978, Open-File Report 78-926
The McDermitt caldera complex, located along the Nevada-Oregon border, is a Miocene collapse structure 45 kilometer in diameter. Large-volume rhyolitic and peralkaline ash-flow tuffs were erupted from 17.9 to 15.8 m.y. ago, leading to the formation of overlapping and nested calderas. Emplacement of rhyolitic ring domes, located primarily along the...
A computer program for borehole compensation of dual-detector density well logs
James Henry Scott
1978, Open-File Report 78-515
The computer program described in this report was developed for applying a borehole-rugosity and mudcake compensation algorithm to dual-density logs using the following information: the water level in the drill hole, hole diameter (from a caliper log if available, or the nominal drill diameter if not), and the two gamma-ray...
Tectonic maps for the Circum-Pacific map project
Maurice J. Terman
1978, Open-File Report 78-118
Geohydrologic data from twenty-four test holes drilled in the Piceance Basin, Rio Blanco County, Colorado, 1975-76
Frank A. Welder, George J. Saulnier
1978, Open-File Report 78-734
Twenty-four test holes were drilled in the Piceance basin, northwestern Colorado, to obtain geohydrologic data from the Uinta and Green River Formations of Eocene age. Depths of test holes ranged from 640 to 2,800 feet. The maximum quantity of water discharged during the air drilling of individual test holes ranged...
Sediment yields for selected streams in Texas
C.T. Welborn, R. Bryce Bezant
1978, Open-File Report 78-83
The U.S. Geological Survey began a study to determine sediment yields for selected streams in Texas during the 1966 water year to provide information for areas in which sediment-yield data were meager or lacking. These data will aid in delineating problem areas and planning for water-resources development in the State....
Coal resource occurrence and coal development potential maps of the Halfway Hill Quadrangle, Carbon County, Wyoming
Prepared by Texas Instruments Incorporated
1978, Open-File Report 78-43
Ground water withdrawn for municipal, industrial, and irrigation use in the Upper Peace and Alafia River basins, west-central Florida, 1970-74
Alton F. Robertson, L. R. Mills, D.C. Parsons
1978, Open-File Report 78-29
Data are presented for ground-water withdrawals for municipal, industrial and irrigation use in the upper Peace and Alafia River basins during 1970-71. Within the 1,160-square-mile study area, the principal source of ground water is the Floridan aquifer. Methods used to determine ground-water withdrawal include: metering water use; relating measured well...
A study of the October 12, 1877, Oregon earthquake
P.C. Thenhaus
1978, Open-File Report 78-234
No abstract available. ...
Chemical analyses of waters from springs and wells from the Clear Lake volcanic area, Northern California
J. M. Thompson, Fraser E. Goff, Julie M. Donnelly
1978, Open-File Report 78-425
Hydrologic data for the Copper Basin area, a potential mining area in Yavapai County, Arizona
B. W. Thomsen, R.S. Stulik
1978, Open-File Report 78-413
Large low-grade ore bodies have been discovered in Copper Basin, and a large copper-mining operation is anticipated in the near future. Hydrologic data are being collected to provide the data base necessary to determine the effects of a potential mining operation on the water resources of the area. The area...
Contact-metasomatic magnetite deposit, Medfra Quadrangle, Alaska
M.L. Throckmorton, William Wallace Patton
1978, Open-File Report 78-26
A small contact-metasomatic magnetite deposit was discovered in the Medfra quadrangle, Alaska, in 1976. It occurs at the contact between a Cretaceous or early Tertiary quartz monzonite stock and Paleozoic limestone and dolomite. The ore is a magnetite-clinohumite-hematite rock that contains up to 60 volume percent magnetite and 76 weight...
Chemical and mineralogical evaluation of soils, Hanging Woman Creek EMRIA site, Big Horn County, Montana
Ronald R. Tidball
1978, Open-File Report 78-346
The purpose of this study is to provide chemical and mineralogical data on the soil resource at the Hanging Woman Creek Energy Mineral Rehabilitation Inventory and Analysis (EMRIA) site. These data will contribute to the potential-reclamation evaluation in the event that the area is disturbed by strip mining for the...
List of intensities, epicentral distances, and azimuths for the 1897 Giles County, Virginia, earthquake and the 1969 Elgood, West Virginia, earthquake
G. A. Bollinger, Carl W. Stover
1978, Open-File Report 78-1017
Stratigraphy of the Cache Formation (Pliocene and Pleistocene) in Clear Lake Basin, Lake County, California
Michael J. Rymer
1978, Open-File Report 78-924
Recent geologic mapping in the Clear Lake basin shows that the nonmarine Cache Formation can be subdivided into several members. New names are herein informally used for three distinct deposits called the B, L, and K members. The three members are geographically separate, except where the L member locally unconformably...
Geologic map of the Monument Peak Quadrangle, San Diego County, California
Victoria R. Todd
1978, Open-File Report 78-697
Geologic map of the Viejas Mountain Quadrangle, San Diego County, California
Victoria R. Todd
1978, Open-File Report 78-113
Preliminary geologic map of the Luning NE Quadrangle, Mineral and Nye counties, Nevada
E. B. Ekren, F.M. Byers Jr.
1978, Open-File Report 78-915
Ice-gouged microrelief on the floor of the eastern Chukchi Sea, Alaska: a reconnaissance survey
Lawrence J. Toimil
1978, Open-File Report 78-693
Side-scan sonar and bathymetric records obtained from 1,800 km of trackline from the eastern Chukchi Sea continental shelf, between water depths of 20 and 70 m show the ubiquitous presence of furrow-like linear depressions produced by gouging of the sea bed by ice keels. These sea bed micro-features are regionally...
Improved inlet system for the U.S. Geological Survey helium sniffer
G. Michael Reimer, E.H. Denton
1978, Open-File Report 78-588
Annotated bibliography of penecontemporaneous deformational structures in sediments 1819-April, 1978
John D. Sims
1978, Open-File Report 78-510
This bibliography summarizes the literature concerned with penecontemporaneous deformational and related structures in sediments produced in various depositional environments. Such structures are formed at the time of or shortly after the deposition of the sediments, and may be broadly construed to include deformation derived from both inorganic and organic processes....
Ground-water pollution by nitrogen compounds at Olean, New York; progress report, June 1977
Allan D. Randall
1978, Open-File Report 78-304
Ground water in an area in Olean, New York contains high concentrations of nitrogen compounds, which are being slowly flushed from the aquifer as the ground water flows toward a nearby well field where it is pumped out. Construction and regular use of a new production well in the area...
