Bottom currents and bottom sediment distribution in Massachusetts Bay
Bradford Butman, John Stevens Schlee, Charles J. O’Hara, Robert H. Meade
1978, Open-File Report 78-369
Massachusetts Bay is a coastal Bay 100 km long and 40 km wide located in the western Gulf of Maine. The Bay is open only to the Gulf to the east; the opening is partially blocked by a shallow bank. The bottom sediment distribution in the bay is complex; fine...
Deformation of the Roberts Mountains Allochthon in north-central Nevada
James George Evans, Ted G. Theodore
1978, Professional Paper 1060
During the Antler orogeny in Late Devonian and Early Mississippian time, early and middle Paleozoic siliceous rocks, largely chert and sha1e, were thrust eastward for 90 to 160 km over coexisting carbonate rocks. Minor and major structures of two small areas of the allochthon at Battle Mountain and in the...
Comprehensive tables giving physical data and thermal energy estimates for young igneous systems of the United States
R. L. Smith, H. R. Shaw, R. G. Luedke, S.L. Russell
1978, Open-File Report 78-925
Comparison of the Wilfley concentration table and hand panning for concentration of heavy minerals prior to geochemical analysis
William R. Greenwood, M.E. Koesterer, Steve Ludington, Donald A. Risoli
1978, Open-File Report 78-712
Chemical analysis of heavy—mineral concentrates of stream sediments is a common geochemical exploration technique used by the U.S. Geological Survey. Generally these concentrates are prepared by hand panning at streamside or in a washtub and then further concentrated using heavy—liquid (bromoform) techniques in a laboratory. Concentration using heavy liquids is...
Postcrystalline deformation of the Pelona Schist bordering Leona Valley, southern California
James George Evans
1978, Professional Paper 1039
Detailed structural investigations in part of the Leona Valley segment of the San Andreas fault zone, 5-16 km west of Palm dale, focused on the postcrystalline deformation of the block of Mesozoic(?) Pelona Schist underlying Portal and Ritter Ridges. The early fabric of the schist is modified and in places...
Final results and statistical summary from analyses of stream-sediment and heavy-mineral-concentrate samples, Chignik and Sutwik Island quadrangles, Alaska
D.E. Detra, E.F. Cooley, R.T. Hopkins, R. M. O’Leary, D.R. Jefferis
1978, Open-File Report 78-1090
Columbia Glacier progress report; December 1977
Mark Frederick Meier, Austin Post, C. S. Brown, David Frank, S. M. Hodge, L.R. Mayo, Lowell A. Rasmussen, E.A. Senear, W. G. Sikonia, D.C. Trabant, R.D. Watts
1978, Open-File Report 78-264
Reconnaissance bedrock geologic map of the Marlborough quadrangle, Massachusetts
Patrick James Barosh
1978, Open-File Report 78-221
No abstract available....
Geochemical analyses of rock and soil samples, Eureka Mining District and vicinity, Eureka and White Pine Counties, Nevada
Maurice A. Chaffee, C.L. Forn, J.R. Hassemer, J. D. Hoffman, E. L. Mosier, J. M. Nishi, R. M. O’Leary, D. F. Siems, R. L. Turner, E. P. Welsch, George Van Trump
1978, Open-File Report 78-790
Hydraulic geometry of river cross sections; theory of minimum variance
Garnett P. Williams
1978, Professional Paper 1029
This study deals with the rates at which mean velocity, mean depth, and water-surface width increase with water discharge at a cross section on an alluvial stream. Such relations often follow power laws, the exponents in which are called hydraulic exponents. The Langbein (1964) minimum-variance theory is examined in regard...
Radiometric results and areal distribution for granitic samples from the Granite Mountains, Wyoming
John S. Stuckless, Carl M. Bunker, George Van Trump, Charles A Bush
1978, Open-File Report 78-803
Analyses of surface samples from the Granite Mountains, Wyoming, generally agree with the findings from drilling at two different localities. The dominant Precambrian granitic rock type is the biotitic phase of the granite of Lankin Dome. This rock type is characterized by high potassium and anomalously high thorium concentrations, and...
Estimated oil and gas reserves, Gulf of Mexico Outer Continental Shelf, January 1, 1977
Floyd T. Bryan, John H. Knipmeyer, E. Kenneth Schluntz
1978, Open-File Report 78-87
As of January 1, 1977, nearly 35 trillion cubic feet of gas and about 2.7 billion barrels of oil* are estimated to be the remaining reserves in 294 fields in the Gulf of Mexico Outer Continental Shelf off Texas and Louisiana. Twenty-seven additional fields, discovered since January 1, 1976, in...
Erosion and sediment yields in the Transverse Ranges, Southern California
Kevin M. Scott, Rhea P. Williams
1978, Professional Paper 1030
Major-storm and long-term erosion rates in mountain watersheds of the western Transverse Ranges of Ventura County, Calif., are estimated to range from low values that would not require the construction of catchments or channel-stabilization structures to values as high as those recorded anywhere for comparable bedrock erodibilities. A major reason...
Effects of permafrost on stream channel behavior in Arctic Alaska
Kevin M. Scott
1978, Professional Paper 1068
Sites with drainage areas ranging from 88 to 12,200 sq km were monitored on five streams in northern Alaska during the breakup in 1976 to determine (1) the effects of frozen bed and bank material on channel behavior, and (2) the importance of the annual breakup flood in forming the...
Numerical modeling of liquid geothermal systems
M.L. Sorey
1978, Professional Paper 1044-D
No abstract available....
The hydrothermal system of Long Valley Caldera, California
M.L. Sorey, Robert Edward Lewis, F. H. Olmsted
1978, Professional Paper 1044-A
Long Valley caldera, an elliptical depression covering 450 km 2 on the eastern front of the Sierra Nevada in east-central California, contains a hot-water convection system with numerous hot springs and measured and estimated aquifer temperatures at depths of 180?C to 280?C. In this study we have synthesized the results...
Seismic model study of Patrick Draw field, Wyoming: a stratigraphic trap in the Upper Cretaceous Almond Formation
Robert C. Anderson, Robert T. Ryder
1978, Open-File Report 78-496
The Patrick Draw field, located on the eastern flank of the Rock Springs uplift in the Washakie basin of southwestern Wyoming, was discovered in 1959 without the use of geophysical methods. The field is a classic example of a stratigraphic trap, where Upper Cretaceous porous sandstone units pinch out on...
Geochronologic data for the Arabian Shield
Lyman Thomas Aldrich, Glen F. Brown, Carl Hedge, Richard Marvin
1978, Open-File Report 78-75
The radiometric ages reported below were completed during the period 1957-1936. the rock samples were provided and examined petrographically by Glen F. Brown and his associates at the U.S. Geological Survey. The 25 Rb-Sr ages of biotites and feldspars and the 25 K-Ar ages of biotites, hornblendes, and total rock...
Intrusive rocks northeast of Steamboat Springs, Park Range, Colorado
George L. Snyder, Carl E. Hedge
1978, Professional Paper 1041
Major Precambrian and minor Tertiary intrusive rocks northeast of Steamboat Springs in the Park Range between 40°30' and 40°45' N. lat. are described and compared with related rocks elsewhere in Colorado and Wyoming. The Precambrian intrusives were emplaced in a sequence of high-grade interlayered felsic gneisses, amphibolites, and pelitic schists...
Analyses of rock samples from the Big Delta Quadrangle, Alaska
Helen Laura Foster, R. M. O’Leary, Stephen McDanal, A. L. Clark
1978, Open-File Report 78-469
Analytical results for 89 water samples from the Papago Indian Reservation, Arizona
Walter H. Ficklin, Wheeler Ashton, D. J. Preston, G.A. Nowlan
1978, Open-File Report 78-1092
Eighty-nine water samples were collected from the Papago Indian Reservation during 1977 and 1978 as a part of a mineral resource study. Each sample was analyzed for copper, zinc, molybdenum, arsenic, uranium, sodium, potassium, calcium, magnesium, bicarbonate, sulfate, chloride, fluoride, and silica. Temperature, pH, and specific conductance were also measured....
Availability of fresh and slightly saline ground water in the basins of westernmost Texas
Joseph Spencer Gates, W. D. Stanley, H.D. Ackermann
1978, Open-File Report 78-663
Significant quantities of fresh ground water occur in the basin fill of the northern Hueco bolson and lower Mesilla Valley and in the Wildhorse Flat, Michigan Flat, Lobo Flat, and Ryan Flat areas of the Salt Basin; and may occur in Red Light Draw, Presidio bolson, and Green River valley....
Geological and geochemical appraisal of metallic mineral resources, southern National Petroleum Reserve in Alaska
Michael Churkin Jr., C.F. Mayfield, P. K. Theobald, Harlan Barton, W. J. Nokleberg, G. R. Winkler, Carl Huie
1978, Open-File Report 78-70-A
Potential effects of deep-well waste disposal in western New York
Roger Milton Waller, John T. Turk, Robert James Dingman
1978, Professional Paper 1053
Mathematical and laboratory models were used to observe, respectively, the hydraulic and chemical reactions that may take place during proposed injection of a highly acidic, iron-rich waste pickle liquor into a deep waste-disposal well in western New York. Field temperature and pressure conditions were simulated in the tests. Hydraulic pressure...
Geological and operational summary, COST No. GE-1 well, Southeast Georgia Embayment area, South Atlantic OCS
Roger V. Amato, J.W. Bebout
1978, Open-File Report 78-668
