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Creator:: Oregon. Dept. of Geology and Mineral Industries, Bowen, Richard G., and Blackwell, David D.
Abstract:: Our studies and those of our colleagues in Idaho indicate that the western Snake River Basin is a major geothermal province, similar in some ways to the Imperial Valley Geothermal Province. Deep drilling should encounter high temperature fluids in permeable rocks below 2 km and at shallower depths where permeability...
Resource Type:: Journal
Full Text:: geophysical data for the area, has drilled 24 shallow (3 to 4 meter) temperature holes, and has published

Creator:: Oregon. Dept. of Geology and Mineral Industries and McWilliams, Robert Gene, 1939-
Abstract:: (1) Field mapping and biostratigraphic data indicate that the Yamhill Formation overlies and is younger than the Tyee Formation; interfingering of the two formations is not indicated. (2) Stewart's correlation of the Yamhill Formation with the Sacchi Beach member of the Tyee was based on incomplete knowledge of the range...
Resource Type:: Journal
Full Text:: . Available data from the Tyee elsewhere in Oregon irrlicate it is no younger than Ulatisian (Stewart, 1957, p

Creator:: Oregon. Dept. of Geology and Mineral Industries and Beaulieu, John D.
Abstract:: Average annual losses caused by geologic hazards in Oregon are difficult to determine, owing to incomplete and scattered data. Preliminary considerations, however, indicate that losses to landslides may total between $4 million and $40 million per year. As many as nine persons have been killed by one landslide in Oregon...
Resource Type:: Journal
Full Text:: uses and • ►#/iitations of the land and adequate data upon which to base decisions. Providing this

Creator:: Oregon. Dept. of Geology and Mineral Industries, Potter, Miles F., 1895-, and McCall, Harold
Abstract:: The following pictorial article on the golden years of eastern Oregon, by Miles F. Potter and Harold McCall, is an abstract from their manuscript of a forthcoming book they are calling "Golden Pebbles." Potter is a long-time resident of eastern Oregon and an amateur historian of some of the early...
Resource Type:: Journal
Full Text:: have been working together for a number of years assembling photographs and data from many sources for

Creator:: Oregon. Dept. of Geology and Mineral Industries and Beaulieu, John D.
Abstract:: The plate tectonic history of Oregon is but one piece of a worldwide jigsaw puzzle encompassing much of geologic time. With the splitting of Pangaea in Mesozoic times, Oregon has occupied the leading edge of the North American Plate as it has impinged upon the ancestral oceanic East Pacific Plate....
Resource Type:: Journal
Full Text:: basis of strontium isotopic data Lanphere and others (1968) conclude that a Devonian age of metamorphism

Creator:: Oregon. Dept. of Geology and Mineral Industries and Walker, George Walton, 1921-
Abstract:: Periodic violent eruptions from many different centers during Cenozoic time deposited vast quantities of pyroclastic material as ash-flow tuffs over most of Oregon, although the Coast Ranges and isolated patches elsewhere in the state appear to have been spared these recurring inundations. Eruptions occurred at different times throughout the Cenozoic,...
Resource Type:: Journal
Full Text:: OREGON* By George W. Walker U.S. Geological Survey, Menlo Park, California 94025. ABSTRACT Periodic

Creator:: Oregon. Dept. of Geology and Mineral Industries, Brooks, Howard C., Berg, Joseph W., and Thiruvathukal, John V.
Resource Type:: Journal
Full Text:: . Gravity data were provided by Standard Oil Co. of California, Humble Oil Co., U.S. Geological Survey

Creator:: Oregon. Dept. of Geology and Mineral Industries, Schmela, Ronald Jay, Palmer, Leonard A., Enlows, Harold E., and Parker, Donald James
Resource Type:: Journal
Full Text:: , geological relationships, and gravity magnetic data strongly suggest the presence of a northwest-trending

Creator:: Oregon. Dept. of Geology and Mineral Industries, Mason, Ralph S., and Newton, Vernon C.
Resource Type:: Journal
Full Text:: are charged with the responsibility of preventing further environmental pollution are relying on data

Creator:: Oregon. Dept. of Geology and Mineral Industries, Rinehart, Wilbur, Bowen, Richard G., Chiburis, E. F., Kays, Marvin Allan, 1934-, and Bruemmer, Jerry Lee, 1936-
Resource Type:: Journal
Full Text:: Oregon (see figure 1). This survey was carried out by using a light four- place airplane (Cessna 172). A

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