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Page 5450, results 136226 - 136250

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Origin and age of postglacial deposits and assessment of potential hazards from future eruptions of Mount Baker, Washington
Jack H. Hyde, Dwight Raymond Crandell
1975, Open-File Report 75-286
Eruptions and other geologic processes at Mount Baker during the last 10,000 years have repeatedly affected adjacent areas, and especially the valleys that head at the volcano. Most mudflows from the volcano were caused by massive avalanches of volcanic rock that had been partly altered to clay by steam and...
U, Th, and K analyses of selected plutonic rocks from west-central Alaska
Thomas P. Miller, Carl M. Bunker
1975, Open-File Report 75-216
Numerous samples of plutonic rocks collected during reconnaissance mapping in western Alaska have been analyzed for K, U, and Th. The U and Th content of the plutonic rocks from the southeastern Seward Peninsula have been discussed in a separate report (Miller and Bunker, 1975); because of the current interest...
Geology of the Jabel Ishmas Quadrangle, Kingdom of Saudi Arabia
Louis Gonzales, Vincent J. Flanigan
1975, Open-File Report 75-181
The Jabal Ishmas quadrangle (20/43A) is about 100 km northeast of Qal'at Bishah in the southern part of the Arabian Shield. Most of the terrane in the quadrangle slopes gently westward across broad expanses of pediment, from prominent mountainous north-south ridges in the east to the alluvial and eolian sand-covered...
Gravity and magnetic studies of The Geysers-Clear Lake geothermal region, California
William F. Isherwood
1975, Open-File Report 75-368
In order to explore for economic steam reservoirs, it is important to know the complete, three-dimensional geology which governs such a system. The Geysers-Clear Lake region California (figure 1), has the world's largest production of commercial power from a dry steam geothermal reservoir. This paper describes gravity and magnetic field...
Influence of caustic and water leaching on analcime-bearing and analcime-free pyrolyzed oil shale from the Green River Formation, Piceance Creek Basin, Colorado
George A. Desborough, Wayne Mountjoy, Irving C. Frost
1975, Open-File Report 75-156
The influence of oil-shale mineral constitution on the amounts of Na2O, Al2O3, and SiO2 extractable from pyrolyzed oil shale using hot water and hot caustic solvents has been examined. Samples of oil shale from two drill cores and one composite sample from the Colony mine were split and studied by...
Stochastic analysis of particle movement over a dune bed
Baum K. Lee, Harvey E. Jobson
1975, Open-File Report 75-358
Stochastic models are available that can be used to predict the transport and dispersion of bed-material sediment particles in an alluvial channel. These models are based on the proposition that the movement of a single bed-material sediment particle consists of a series of steps of random length separated by rest...
Sulfur, fluorspar, magnesite, and aluminous chromite in Pakistan
Raymond H. Nagell
1975, Open-File Report 75-496
Reports and analyses on elemental sulfur, fluorspar, magnesite, and aluminous chromite were reviewed for the purpose of identifying and categorizing the known deposits, and to indicate those which seem to merit further study on the basis of available information. General conclusions drawn from the study are: (1) Although aluminous chromite...
Seismic refraction records from a survey in the Gulf of Alaska
Kenneth C. Core, Robert E. Mattick, Kenneth C. Bayer
1975, Open-File Report 75-283
In September, 1974, the U.S. Geological Survey conducted a seismic refraction survey between Icy Bay and Kayak Island in the Gulf of Alaska to measure the seismic velocity and thickness of the sedimentary section. The purpose of this report is to make the original field records publicly available. Five lines...