Compilation of revised ages of volcanic units in the San Juan Mountains, Colorado; recalculated K-Ar age determinations using IUGS constants
Ken Hon, Harald H. Mehnert
1983, Open-File Report 83-668
Previously published K-Ar age determinations for the middle to late Tertiary San Juan volcanic field have been recalculated using the 1977 IUGS constants. Revised ages, original analytical data, and brief sample descriptions are presented in table 2 for all available dated volcanic units. A generalized stratigraphic column is also included...
Ground water in the southeastern Uinta Basin, Utah and Colorado
Walter F. Holmes, Briant A. Kimball
1983, Open-File Report 83-271
The potential for developing oil-shale resources in the southeastern Uinta Basin of Utah and Colorado has created the need for information on the quantity and quality of water available in the area. This report describes the availability and chemical quality of ground water, which might provide a source or supplement...
Ground-water hydrology and projected effects of ground-water withdrawals in the Sevier Desert, Utah
Walter F. Holmes
1983, Open-File Report 83-688
No abstract available. ...
Hydrology of area 20, Eastern Coal Province, Tennessee, Georgia and Alabama
E. F. Hollyday
1983, Open-File Report 82-440
No abstract available....
Major, minor, and trace elements in samples from the Wheeler Wilderness Study Area, Colorado, as determined by inductively coupled argon plasma-atomic emission spectrometry
J.G. Crock, William H. Raymond, F.E. Lichte
1983, Open-File Report 83-405
Cost-effective streamgaging strategies for the Lower Colorado River basin
Edward J. Gilroy, Marshall E. Moss
1983, Open-File Report 81-1019
International minerals resource assessment project
Carroll Ann Hodges, Dennis P. Cox, D.A. Singer
1983, Open-File Report 83-313
Coal quality loss from acquisition to analysis; a preliminary time study
Robert G. Hobbs, James Daniel Cathcart, George A. Correia
1983, Open-File Report 83-167
Assessment of a prototype earthquake prediction network for Southern California
James H. Dieterich
1983, Open-File Report 83-576
Analyses of the less than 0.180-mm fraction of drainage sediments, Richfield 1° x 2° quadrangle, Utah
J. M. Motooka, W. Roger Miller
1983, Open-File Report 83-74
No abstract available....
HP-85 computer programs for reading Sprengnether DR-100 seismograph cassettes with DP-100 playback system
John R. Evans, Reese Cutler
1983, Open-File Report 83-521
Procedures for petroleum resource assessment used by the U.S. Geological Survey; statistical and probabilistic methodology
Robert A. Crovelli
1983, Open-File Report 83-402
Geochemical analyses of rock and stream-sediment samples from the Long Swamp Roadless Area, Okanogan County, Washington
Russell C. Evarts, James G. Frisken, Kenneth R. Bishop
1983, Open-File Report 83-227
Mineral resource potential of the Tatoosh Roadless Area, Lewis County, Washington
Russell C. Evarts, S. E. Church, Elwin L. Mosier
1983, Open-File Report 83-471
Regional magnetic and gravity features of the Gibson Dome area and surrounding region, Paradox Basin, Utah: A preliminary report
T.G. Hildenbrand, R.P. Kucks
1983, Open-File Report 83-359
Analyses of regional gravity and magnetic anomaly maps have been carried out to assist in the evaluation of the Gibson Dome area as a possible repository site for high-level radioactive waste. Derivative, wavelength-filtered, and trend maps were compiled to aid in properly locating major geophysical trends corresponding to faults, folds,...
Magnetic and gravity features of western Kentucky: Their geologic significance
T.G. Hildenbrand, G. Randy Keller
1983, Open-File Report 83-164
No abstract available....
FFTFIL; a filtering program based on two-dimensional Fourier analysis of geophysical data
T.G. Hildenbrand
1983, Open-File Report 83-237
The filtering program 'fftfil' performs a variety of operations commonly required in geophysical studies of gravity, magnetic, and terrain data. Filtering operations are carried out in the wave number domain where the Fourier coefficients of the input data are multiplied by the response of the selected filter. Input grids can...
Reconnaissance drilling during 1980 in the Goose Creek coal field, Cassia County, Idaho
Ricky T. Hildebrand
1983, Open-File Report 83-477
Water quality data for selected streams tributary to the tidal Potomac River and Estuary, Maryland and Virginia, 1979-81 water years
R.E. Hickman
1983, Open-File Report 83-873
Observations of the physical, chemical, and biological water quality of five streams draining to the tidal Potomac River and Estuary during the 1979-81 water years are tabulated. The streams sampled are Rock Creek, the Northwest and Northeast Branches of the Anacostia River, the Occoquan River, and St. Clements Creek. Samples,...
Water resources of the Zuni Tribal Lands, McKinley and Cibola counties, New Mexico
Brennon R. Orr
1983, Open-File Report 82-1013
An evaluation of the water resources of the Zuni Tribal lands in west-central New Mexico was made to determine the yield, variability, and quality of water available to the Pueblo of Zuni. This study is needed to aid in orderly development of these resources.Rocks of Permian to Quaternary age supply...
Relationships between water quality and phosphorus concentrations for lakes of the Puget Sound region, Washington
Robert J. Gilliom, Gilbert Carl Bortleson
1983, Open-File Report 83-255
Predictive regression relationships between concentrations of total phosphorus (P) in near-surface waters (1m) and water-quality characteristics were developed for lakes in the Puget Sound region. Nitrogen-to-phosphorus ratios support the strategy of emphasizing total P for lake eutrophication assessment within the range of lake conditions represented. Relationships based on summer total...
A reconnaissance geochemical survey of the Clarion River Roadless Area, Allegheny National Forest, Elk County, Pennsylvania
N. L. Hickling, Stanley P. Schweinfurth, Betty M. Adrian
1983, Open-File Report 83-22
Semiquantitative emission spectrographic analyses for 31 elements were determined on 9 stream-sediment samples and 18 bedrock samples from the Clarion River Roadless Area, Elk County, Pennsylvania. All sample localities are given in Universal Transverse Mercator (UTM) coordinates. Brief descriptions of bedrock samples are also included. Rocks analyzed are mostly sandstone,...
Reconnaissance geology of the Ishash Quadrangle, sheet 26/39C, Kingdom of Saudi Arabia
G. M. Fairer
1983, Open-File Report 83-821
The Ishash quadrangle occupies an area of about 2,725 km2 on the northern border of the Precambrian shield in north-central Saudi Arabia between lat 26?00' and 26?30' N. and long 39?00' and 39?30' E. The northern quarter is covered by Cambrian Siq Sandstone and the southeastern corner is covered by...
The mineral resource potential of the Wadi Habawnah and Najran quadrangles, sheets 17/44A and 17/44C, Kingdom of Saudi Arabia
Michael D. Fenton
1983, Open-File Report 83-9
The metallic resource potential of the Wadi Habawnah and Najran quadrangles in the southern Precambrian Arabian Shield has been determined primarily by reconnaissance rock geochemistry, limited wadi-sediment and colluvium geochemistry, and gossanous and ferruginous outcrop geochemistry. These surveys were guided by geological information acquired during previous reconnaissance mapping. Locally anomalous...
Estimated oil and gas reserves, Gulf of Mexico outer continental shelf and continental slope, December 31, 1982
Jack E. Hewitt, Jeff P. Brooke, John H. Knipmeyer
1983, Open-File Report 83-122
Remaining recoverable reserves of oil* and gas in the Gulf of Mexico Outer Continental Shelf and Continental Slope have been estimated to be about 2.98 billion barrels of oil and 39.8 trillion cubic feet of gas, as of December 31, 1982. These reserves are recoverable from 468 studied fields under...
