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Drilling results at the Farah Garan ancient mine, southwestern Saudi Arabia
Charles W. Smith, Mustafa M. Mawad
1982, Open-File Report 82-942
The Farah Garan ancient mine is located at fat 17?41'00'' N., long 43?38'15'' E. in the southwestern part of the Kingdom of Saudi Arabia. Three diamond drill holes intersected base-metal sulfides, which are present both as conformable layers in Precambrian tuffaceous volcanic rocks and as fracture fillings, irregularly shaped masses,...
Design concepts for a Global Telemetered Seismograph Network
Jon Peterson, Nicholas A. Orsini
1982, Open-File Report 82-703
This study represents a first step in developing an integrated, real-time global seismic data acquisition system a Global Telemetered Seismograph Network (GTSN). The principal objective of the GTSN will be to acquire reliable, high-quality, real-time seismic data for rapid location and analysis of seismic events. A secondary, but important, objective...
Test and calibration of the Digital World-Wide Standardized Seismograph
Jon Peterson, Charles R. Hutt
1982, Open-File Report 82-1087
During the past decade there has been steady progress in the modernization of the global seismograph network operated by the U.S. Geological Survey (USGS). The World-Wide Standardized Seismograph Network (WWSSN) has been augmented by new stations with advanced instrumentation, including the Seismic Research Observatories (SRO) and the modified High-Gain Long-Period...
Ground-water quality in east-central Idaho valleys
D. J. Parliman
1982, Open-File Report 81-1011
From May through November 1978, water quality, geologic, and hydrologic data were collected for 108 wells in the Lemhi, Pahsimeroi, Salman River (Stanley to Salmon), Big Lost River, and Little Lost River valleys in east-central Idaho. Data were assembled to define, on a reconnaissance level, water-quality conditions in major aquifers...
Compilation of ground-water quality data for selected wells in Elmore, Owyhee, Ada, and Canyon counties, Idaho, 1945 through 1982
D. J. Parliman
1982, Open-File Report 83-39
Well-inventory and groundwater-quality data for 665 sites with a total of 1,318 chemical analyses were compiled from Elmore, Owyhee, Ada, and Canyon Counties. Data are sorted by water temperature (less than 20 degrees Celsius is considered nonthermal; 20 degrees Celcius or greater is considered thermal) to facilitate their use....
Digital data base application to porphyry copper mineralization in Alaska; case study summary
Charles M. Trautwein, David D. Greenlee, Donald G. Orr
1982, Open-File Report 82-801
The purpose of this report is to summarize the progress in use of digital image analysis techniques in developing a conceptual model for assessing porphyry copper mineral potential. The study area consists of approximately the southern one-half of the 1? by 3? Nabesna quadrangle in east-central Alaska. The digital geologic...
Performance assessments for radioactive waste repositories; the rate of movement of faults
Newell J. Trask
1982, Open-File Report 82-972
Performance assessments of mined repositories for radioactive waste require estimates of the likelihood of fault movements and earthquakes that may affect the repository and its surrounding ground water flow system. Some previous assessments have attempted to estimate the rate of formation of new faults; some have relied heavily on historic...
A study of trends in dissolved oxygen and fecal coliform bacteria at NASQAN stations
Richard A. Smith, Richard B. Alexander
1982, Open-File Report 82-1019
Most stations in the U.S. Geological Survey's National Stream Quality Accounting Network show no significant trend in either dissolved oxygen concentration or fecal coliform bacteria population for the period October 1974. through October 1981. Of the stations which do show trends, however, most show improved water quality: thirty-one of a...
Preliminary geological investigation of the Bir Hayzan diatomite deposit, Kingdom of Saudi Arabia, with a section on selected physical properties and implications for future geophysical exploration
J.W. Whitney, M. E. Gettings
1982, Open-File Report 82-1046
A 2.2-m-thick lake bed composed entirely of diatomite was found in the southwestern arm of the Nafud sand sea, about 67 km east of Tayma in northwestern Saudi Arabia. Its stratigraphic position above eolian sand and below a large barchanoid dune indicates deposition during an exceptional period of pluvial climate...
Zeolites in the Pine Ridge Indian Reservation, South Dakota
William H. Raymond, Alfred L. Bush, Arthur J. 3rd Gude 3rd
1982, Open-File Report 82-959
Zeolites of possible commercial value occur in the Brule Formation of Oligocene age and the Sharps Formation (Harksen, 1961) of Miocene age which crop out in a wide area in the northern part of the Pine Ridge Indian Reservation. The thickness of the zeolite-bearing Interval and the extent of areas...
Assessment of hydrologic conditions in potential coal-lease tracts in the Warrior coal field, Alabama
Celso Puente, John F. Newton, Roy H. Bingham
1982, Open-File Report 81-540
Assessing the hydrology of potential Federal coal-lease tracts, because of their dissemination and limited data, requires some predictive capability. Four tracts assessed were located in the outcrop of three coal groups and of other relatively impermeable rocks in the Pottsville Formation. Physical settings of the tracts and most other areas...
Data on selected deep wells in south Florida
C.A. Smith, Lauralee Lidz, F.W. Meyer
1982, Open-File Report 82-348
A data base of 870 deep wells was assembled for the south Florida part of the Southeastern Limestone Regional Aquifer Study. The data in this report are for wells in Broward, Collier , Dade, Hendry, Lee, Martin, Monroe, Palm Beach, and St. Lucie Counties. Data are compiled for water wells,...
Installation and sampling of observation wells and analyses of water from the shallow aquifer at selected waste-disposal sites in the Memphis area, Tennessee
W. S. Parks, D. D. Graham, J.F. Lowery
1982, Open-File Report 82-266
Observation wells were installed and sampled at six abandoned waste-disposal sites in the Memphis area that have been identified as having received unknown quantities and types of industrial waste. Ten wells were installed adjacent to and downgradient from these sites in the shallow water-table aquifer. Water samples were collected from...
A hybrid structure for the storage and manipulation of very large spatial data sets
Donna J. Peuquet
1982, Open-File Report 82-816
The map data input and output problem for geographic information systems is rapidly diminishing with the increasing availability of mass digitizing, direct spatial data capture and graphics hardware based on raster technology. Although a large number of efficient raster-based algorithms exist for performing a wide variety of common tasks on...
Water-quality assessment of the American River, California
M.V. Shulters
1982, Open-File Report 82-763
Based on an analysis of water-quality data from more than 168 sites, the American River was found to be of overall good quality and suitable for all beneficial uses specified by the State of California, even though its natural condition has been altered by man 's activities in the basin....