Primary and secondary faulting in the Najd fault system, Kingdom of Saudi Arabia
John McMahon Moore
1979, Open-File Report 79-1661
The Najd fault system is a major transcurrent (strike-slip) fault system of Proterozoic age in the Arabian Shield. The system is a braided complex of parallel and curved en echelon faults. Complex arrays of secondary structures including strike-slip, oblique-slip, thrust, and normal faults, together with folds and dike swarms, are...
Supplement to floods in the upper Des Moines River basin, Iowa
Albert J. Heinitz
1979, Open-File Report 79-1486
Data on the East Fork Des Moines River for the August 1979 flood between river miles 330.4 and 408.8 is being published as a supplement to the report "Floods in the Upper Des Moines River basin, Iowa" (Schwab, 1970). Elevation profiles of the 1979 flood, along with previously published profiles, are shown in figures...
Preliminary diagrams showing correlation of coal beds in the Fort Union and Wasatch Formations across the northern Powder River basin, northeastern Wyoming and southeastern Montana
William Craven Culbertson, Bion H. Kent, W. J. Mapel
1979, Open-File Report 79-1201
Ground-water resources of Monroe County, Pennsylvania
Louis D. Carswell, Orville B. Lloyd Jr.
1979, Open-File Report 79-414
Monroe County is on the eastern border of Pennsylvania and includes much of the area popularly called the Poconos. It is an area long used for outdoor recreation and includes a part of the Delaware Water Gap National Recreation Area.Water resources in the county are derived from precipitation. The Lehigh...
Seepage study of the West Side and West canals, Box Elder County, Utah
R.W. Cruff
1979, Open-File Report 79-1489
A study of the gains or losses of the West Side and West Canals from Cutler Reservoir to near Penrose, Box Elder County, Utah, was made to aid in water allocation for the canal system. Four sets of seepage measurements made in 1978 were used in the analysis. Adjustments for...
Evidence for tectonic movement of the Las Positas Fault, Alameda County, California
Darrell G. Herd, Earl E. Brabb
1979, Open-File Report 79-1658
On October 29, 1979, a new exposure of the Las Positas fault zone near Livermore, California, was created by excavation of a creek bank along Arroyo Seco. The face of the bank was cleaned by geologists of Lawrence Livermore Laboratory (Livermore, California) to obtain a better and more complete view...
Geophysical and lithologic logs of 1977 coal drilling in the Fort Union Formation, Carbon and Sweetwater Counties, Wyoming
Robert D. Hettinger, Robert Brown
1979, Open-File Report 79-326
Major-element geochemistry of the Silent Canyon-Black Mountain peralkaline volcanic centers, northwestern Nevada Test Site: applications to an assessment of renewed volcanism
Bruce M. Crowe, Kenneth A. Sargent
1979, Open-File Report 79-926
The Silent Canyon and Black Mountain volcanic centers are located in the northern part of the Nevada Test Site. The Silent Canyon volcanic center is a buried cauldron complex of Miocene age (13-15 m.y.). Black Mountain volcanic center is an elliptical-shaped cauldron complex of late Miocene age. The lavas and...
Chemical analyses of lignite from the Wilcox Group, Texas region, central and eastern Texas
Rick T. Hildebrand, Joseph R. Hatch, Christopher D. Henry
1979, Open-File Report 79-1250
As part of a continuing program by the U.S. Geological Survey to collect and chemically analyze representative sales of U.S. coal, 45 samples of lignite and lignite-associated rocks were collected strip mines and drill holes in Freestone and Milam counties in central Texas, and in Harrison, Rains, Titus, Van Zandt,...
Chemical analyses of ground water related to geothermal investigations in the Teton River area, eastern Idaho
E. G. Crosthwaite
1979, Open-File Report 79-687
Water samples were collected from 31 wells and springs in eastern Idaho and western Wyoming to help evaluate the potential geothermal resources in the Teton River area, Idaho. The water analyses included the common anions and cations, oxygen-18, deuterium, and several minor elements. Actual temperatures of the sampled thermal waters...
Hydrologic data for water-table aquifers in the greater Denver area, Front Range Urban Corridor, Colorado
Donald E. Hillier, Paul A. Schneider, E. Carter Hutchinson
1979, Open-File Report 79-214
As part of the U.S. Geological Survey 's investigations of the hydrology and geology in the Front Range Urban Corridor of Colorado, hydrologic data for water-table aquifers in the greater Denver area were collected and compiled during 1976-77. These data, consisting of records for 325 wells and 11 springs and...
Key to the common marine molluscs of Texas
Gary W. Hill
1979, Open-File Report 79-969
A dichotomous key is developed which provides the investigator a means for identifying the common marine molluscs on the Texas coast. The key is written as to allow the user to stop or begin at any desired taxonomic level (class, order, superfamily, family, genus, species) depending on prior knowledge or...
Key to the Texas species of the superfamily Epitoniacea (Mollusca)
Gary W. Hill
1979, Open-File Report 79-298
Stratigraphy and paleoenvironment of Miocene phosphatic rocks in the East San Francisco Bay region, California
James M. Hill
1979, Open-File Report 79-1570
A stratigraphic study of the Monterey Group in the East San Francisco Bay Region, California, indicates that a depositional basin began to subside in early to middle Miocene time. The Miocene sea transgressed from the west or southwest, and the area subsided to a possible water depth of 500 to...
Ground-water quality in selected areas of Wisconsin
S. M. Hindall
1979, Open-File Report 79-1594
Analysis of 2,071 ground-water samples from 970 wells throughout Wisconsin indicate large variations in ground-water quality. Ground water in Wisconsin is generally suitable for most uses, but in some areas concentrations of chemical constituents exceed recommended drinking-water standards. Iron, manganese, and nitrate commonly exceed recommended drinking-water standards and dissolved solids,...
Preliminary report on an exploratory drill hole: New Madrid test well-1-X in Southeast Missouri
Anthony J. Crone, D. P. Russ
1979, Open-File Report 79-1216
As part of the U.S. Geological Survey's investigation of earthquake hazards in the upper Mississippi embayment, a test well (NMTW-l-X) was drilled in the "bootheel" of Missouri, 21 km south-southwest of the town of New Madrid. The primary purpose of the well was to obtain in situ stress measurements from...
The use of Vacutainer tubes for collection of soil samples for helium analysis
Margaret Hinkle, James E. Kilburn
1979, Open-File Report 79-1441
Measurements of the helium concentration of soil samples collected and stored in Vacutainer-brand evacuated glass tubes show that Vacutainers are reliable containers for soil collection. Within the limits of reproducibility, helium content of soils appears to be independent of variations in soil temperature, barometric pressure, and quantity of soil moisture...
Uranium and thorium content of some sedimentary and igneous rocks from the Rolla 1° x 2° quadrangle, Missouri
S. King Odland, Hugh T. Millard
1979, Open-File Report 79-1080
No abstract available....
Lithologic log, lithium content, and mineralogy of sediments penetrated in test boring drilled in Eureka Valley, Inyo County, California
James D. Morgan
1979, Open-File Report 79-1089
A test boring was drilled in a playa in Eureka Valley, Calif., by the U.S. Geological Survey in the spring of 1978. Work was done under the terms of a cooperative agreement between the U.S. Geological Survey and the U.S. Bureau of Land Management to evaluate the leasable mineral potential...
Coal exploratory drilling; a cost percentage comparison of three methods
Robert G. Hobbs
1979, Open-File Report 79-1100
Potential hazards from floodflows and debris movement in the Furnace Creek area, Death Valley National Monument, California-Nevada
John R. Crippen
1979, Open-File Report 79-991
Death Valley is known as the driest and hottest region in the United States. Despite the aridity of the valley itself, however , very heavy rainfall sometimes occurs in the nearby mountains. Such violent rainstorms are likely to be of relatively short duration and to occur over rather small areas;...
Guidelines for logging, describing, and sampling cores and cuttings of coal and associated rocks at the drill site
Robert G. Hobbs
1979, Open-File Report 79-1522
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for Wildcat Creek, Howard County, Indiana
Charles G. Crawford, William G. Wilber, James G. Peters
1979, Open-File Report 79-1252
The Indiana State Board of Health is developing a water-quality management plan that includes establishing limits for wastewater effluents discharged into Indiana streams. A digital model calibrated to conditions in Wildcat Creek was used to predict alternatives for future waste loadings that would be compatible with Indiana stream water-quality standards...
Water quality in the Merced River above and below the El Portal sewage treatment plant near Yosemite National Park, California, 1975-77
Ray J. Hoffman
1979, Open-File Report 79-679
A study was made to evaluate the effects that treated sewage has on some characteristics of water quality in a reach of the Merced River near Yosemite National Park. Streamflow and water-quality data were collected from July through October 1975 and from July through November 1977 at five stations on...
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for South Fork Wildcat Creek, Clinton County, Indiana
Charles G. Crawford, William G. Wilber, James G. Peters
1979, Open-File Report 79-1074
The Indiana State Board of Health is developing a State water-quality management plan that includes establishing limits for wastewater effluents discharged into Indiana streams. A digital model calibrated to conditions in South Fork Wildcat Creek was used to predict alternatives for future waste loadings that would be compatible with Indiana...
