History of irrigation and characteristics of streamflow in Nebraska, part of the North and South Platte River basins
F. Butler Shaffer
1976, Open-File Report 76-167
More than 80 years of streamflow records have been collected in Nebraska. Such records are essential in planning water developments and managing water resources. Their value can be enhanced if the records are analyzed statistically. This report presents statistics on the flow of streams in the North and South Platte...
Empirical transfer functions for stations in the Central California seismological network
W. H. Bakun, Jay Dratler
1976, Open-File Report 76-259
A sequence of calibration signals composed of a station identification code, a transient from the release of the seismometer mass at rest from a known displacement from the equilibrium position, and a transient from a known step in voltage to the amplifier input are generated by the automatic daily calibration...
Geology of the Deep Creek area, Washington, and its regional significance
Robert Giertz Yates
1976, Open-File Report 76-537
This report, although primarily concerned with the stratigraphy and structure of a lead-zinc mining district in northern Stevens County, Washington, discusses and integrates the geology of the region about the Deep Creek area. Although the study centers in an area of about 200 square miles immediately south of the International...
Reconnaissance of sediment transport and channel morphology in the Lower Rio Bermejo Basin, Argentina - with a section on reconnaissance of the lower Rio Pilcomayo Basin, Argentina and Paraguay
John R. Ritter
1976, Open-File Report 76-564
Sediment transport conditions are described for the Lower Rio Bermejo and the Rio Pilcomayo in the Gran Chaco region of northern Argentina and southern Paraguay. The Lower Rio Bermejo is in many ways atypical, as its channel narrows downstream. Also its flow decreases downstream even though average annual rainfall at...
Preliminary investigation of the elemental variation and diagenesis of a tabular uranium deposit, La Sal Mine, San Juan County, Utah
Robert A. Brooks, John A. Campbell
1976, Open-File Report 76-287
Ore in the La Sal mine, San Juan County, Utah, occurs as a typical tabular-type uranium deposit of the-Colorado Plateau. Uranium-vanadium occurs in the Salt Wash Member of the Jurassic Morrison Formation. Chemical and petrographic analyses were used to determine elemental variation and diagenetic aspects across the orebody. Vanadium is...
Submarine faults and slides that disrupt surficial sedimentary units, northern Gulf of Alaska
Paul R. Carlson
1976, Open-File Report 76-294
Faults and submarine slides or slumps of Quaternary age are potential environmental hazards on the outer continental shelf (OCS) of the northern Gulf of Alaska. Most of the faults that approach or reach the seafloor cut strata that may be equivalent to the upper Yakataga Formation (Pliocene-Pleistocene). Along several faults...
Relations between specific gravity and chemical composition for a suite of igneous and metamorphic rocks
Edward J. Young, G.R. Olhoeft
1976, Open-File Report 76-809
Preliminary report on samples collected during lithium reconnaissance studies of the Rocky Mountains and adjacent states
Elizabeth B. Tourtelot, Allen L. Meier
1976, Open-File Report 76-856
Geological Survey and selected U.S. Bureau of Mines and Alaska Division of Geological and Geophysical Surveys reports and maps on Alaska released during 1975, indexed by quadrangle
Edward Huntington Cobb
1976, Open-File Report 76-332
All Geological Survey reports and maps on Alaska published or released to open files during 1975 are listed by the quadrangles (scale 1:250,000) into which Alaska has been divided for topographic mapping (p. 3). Also listed are U.S. Bureau of Mines reports on the geology and mineral resources of Alaska,...
Reconnaissance drilling in the Danforth Hills coal field, Moffat and Rio Blanco counties, Colorado, August-September 1976
Marith J. Reheis
1976, Open-File Report 76-870
Principal facts for a gravity survey of Summer Lake KGRA, Oregon
Donald L. Peterson, R. F. Meyer
1976, Open-File Report 76-702-A
Reconnaissance of the water resources of the upper Klickitat River Basin, Yakima Indian Reservation, Washington
Denzel R. Cline
1976, Open-File Report 75-518
Large quantities of ground water and surface water are available in Washington County. Major sources of ground water are the Gosport Sand and Lisbon Formation undifferentiated, the Miocene Series undifferentiated, and alluvium and low terrace deposits. The Miocene, the most productive source of ground water, will yield 0.5 to 1.0...
Potassium-argon ages of basement rocks from St. George Island, Alaska
Miles L. Silberman, David Moody Hopkins
1976, Open-File Report 76-733
St. George Island is one of the Pribilof Islands which lie between 56°35' and 57°11' N. lat. in the Bering Sea, 350 km north of the Aleutian chain. The islands are situated near the margin of the continental platform that underlies most of the northern half of the Bering Sea...
Source beds of petroleum in the Denver Basin
Paul J. Swetland, Jerry L. Clayton
1976, Open-File Report 76-572
Crude oil and shale samples from the Denver basin of Colorado, Wyoming, and Nebraska were analyzed by organic geochemical techniques to determine the stratigraphic occurrence and regional distribution of petroleum source beds. The study demonstrates that the oils produced from Cretaceous Sussex, Shannon, ?D? and 'J' sandstone reservoirs are genetically...
Laboratory hydraulic calibration of the Helley-Smith bedload sediment sampler
Leroy Druffel, W. W. Emmett, V.R. Schneider, J. V. Skinner
1976, Open-File Report 76-752
The Helley-Smith bedload sampler operates on a pressure-difference principle and consists of an expanding nozzle, nylon-mesh sample bag , and external components for structural integrity and stability under flow conditions. The Helley-Smith bedload sampler has a hydraulic efficiency, the ratio of the mean velocity in the sampler nozzle to the...
Digital telemetry system network installation for the National Earthquake Information Service
Harold E. Clark
1976, Open-File Report 76-328
Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska
Edward Huntington Cobb
1976, Open-File Report 76-340
These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Chandalar and Wiseman quadrangles in the southern Brooks Range, Alaska. All references to reports of the Geological Survey, to most reports of the U.S....
Ground-water exploration in northeastern Kenya
W.V. Swarzenski, Simon Wanyeki
1976, Open-File Report 76-583
Preliminary report on stratigraphy and depositional environments of the lignites in the Fort Union Formation, west-central North Dakota
Edward A. Rehbein
1976, Open-File Report 77-69
Regional gravity and aeromagnetic studies applied to uranium exploration in northeastern Washington and Wyoming
John W. Cady
1976, Open-File Report 76-317
Evaluation of the Umm Al Khabath copper prospect, Jabal Ibrahim Quadrangle, sheet 20/41C, Kingdom of Saudi Arabia
Ronald G. Worl, Vincent J. Flanigan
1976, Open-File Report 78-521
Simulation procedure for modeling transient water table and artesian stress and response
J.E. Reed, M. S. Bedinger, J. E. Terry
1976, Open-File Report 76-792
The series of computer programs described in this report were designed specifically to model the ground-water regime in sufficient detail to determine the effects of the imposition of various types of stress upon the system, and to display the results in a convenient manner during calibration and when presenting projected...
Determination of channel capacity of the Sacramento River between Ordbend and Glenn, Butte and Glenn counties, California
R.G. Simpson
1976, Open-File Report 76-526
The adequacy of an 8.5-mi reach of the Sacramento River to carry flood flows is evaluated. The reach studied is in Butte and Glenn Counties, California, and extends northward from the present east-bank Sacramento River Flood Control Project levee near Glenn upstream to the Ord Ferry gaging station near Ordbend....
Principal facts for a gravity survey of Wendel-Amedee Known Geothermal Resource Area, California
Donald L. Peterson, Jerry H. Hassemer
1976, Open-File Report 76-702-B
Hydrologic reconnaissance of the Tule Valley drainage basin, Juab and Millard counties, Utah
Jerry C. Stephens
1976, Open-File Report 76-709
