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Subsurface geologic structure of the Vale, Oregon, known geothermal resource area from the interpretation of seismic reflection and potential field data

Creator:: Lillie, Robert James
Resource Type:: Masters Thesis

Structures of the continental margin of Central America from northern Nicaragua to northern Panama

Creator:: Victor, Linda
Abstract:: Gravity and seismic data obtained by the geophysical group at Oregon State University on the R/V YAQUINA during 1969, 1971, and 1973 plus other available data over the area just west of Nicaragua and Costa Rica indicate the tectonic complexity of the region. Gravity measurements show negative free-air anomalies over...
Resource Type:: Masters Thesis

Structure of the Panama Basin from marine gravity data

Creator:: Barday, Robert James
Abstract:: In order to quantitatively examine the crustal structure of the Panama Basin without the benefit of local seismic refraction data, the following assumptions were made: (1) No significant lateral changes in density take place below a depth of 50 km. (2) The densities of the crustal layers are those of...
Resource Type:: Masters Thesis
Full Text:: lobate westward extension of the Malpelo ridge. This trough is probably real, marking the location of a

Interpretation of gravity anomalies observed in the Cascade Mountain province of Northern Oregon

Creator:: Braman, Dave E.
Resource Type:: Masters Thesis

Gravity measurements and their structural implications for the continental margin of southern Peru

Creator:: Whitsett, Robert Manning
Abstract:: A free-air gravity anomaly map of the continental margin of Peru between 12° and 18° S. Lat. shows a -110 to -220 mgl anomaly associated with the Peru-Chile Trench, a -60 mgl anomaly over the Pisco Basin on the continental shelf, and -120 mgl anomaly over the Mollendo (or Arequipa)...
Resource Type:: Dissertation
Full Text:: several fracture zones on the Nazca Plate that the Nazca Ridge may be an extension of the Sala y Gomez

Gravity anomalies and their structural implications for the southern Oregon Cascade Mountains and adjoining Basin and Range province

Creator:: Veen, Cynthia A.
Abstract:: Gravity measurements made during 1979 and 1980, combined with existing gravity measurements, provide data for the interpretation of upper crustal structures relevant to the assessment of the geothermal potential of south-central Oregon. West of Upper Klamath Lake, free-air gravity anomalies trend north-south and average near 35 mgals. East of Upper...
Resource Type:: Masters Thesis
Full Text:: . Hamilton and Myers (1967) and Smith (1977) suggested that regicnal extension produced the block faulting

Gravity and structure of the Pacific continental margin of Central Mexico

Creator:: Sanchez Zamora, Osvaldo
Abstract:: Data collected by personnel of the Geophysics Group at Oregon State University and the Instituto Oceanografico of the Direccion General dé Oceanografia are used to construct a free-air anomaly map for the central part of the Pacific continental margin of Mexico, which shows the gravity expression of major structural features...
Resource Type:: Masters Thesis
Full Text:: the gravity anomalies southwest of Manzanillo appears to be related to an extension of the eastern

Geothermal and structural implications of magnetic anomalies observed over the southern Oregon Cascade Mountains and adjoining Basin and Range province

Creator:: McLain, William Henry
Resource Type:: Masters Thesis
Full Text:: was produced by regional extension which resulted in either horst and graben structures or tilted

Geologic structure of the western continental margin of south central Baja California based on seismic and potential field data

Creator:: Coperude, Shane Patrick
Abstract:: Marine geophysical data from the continental margin of Baja California and the Gulf of California, and geological and geophysical data from the Baja California Peninsula and mainland Mexico, outline the major geologic and tectonic features of the Baja California Peninsula and the surrounding areas from 24.5° N. Lat. to 27.5°...
Resource Type:: Masters Thesis
Full Text:: continental slope extends approximately 65 km from the slope-shelf break to the southward extension of the

Frequency response function analysis of the equatorial margin of Brazil using gravity and bathymetry

Creator:: Macario, Ana L. G.
Abstract:: The overall objective of this study is to address questions concerning the long-term mechanical strength of the lithosphere across the equatorial margin of Brazil. The approach used in this study consists of calculating the frequency response function estimates, also called admittance, using gravity and bathymetry data. These experimental estimates are...
Resource Type:: Masters Thesis
Full Text:: Baltimore Canyon Trough has not acquired any significant strength after extension, that is, the

ScholarsArchive@OSU

Subsurface geologic structure of the Vale, Oregon, known geothermal resource area from the interpretation of seismic reflection and potential field data

Structures of the continental margin of Central America from northern Nicaragua to northern Panama

Structure of the Panama Basin from marine gravity data

Interpretation of gravity anomalies observed in the Cascade Mountain province of Northern Oregon

Gravity measurements and their structural implications for the continental margin of southern Peru

Gravity anomalies and their structural implications for the southern Oregon Cascade Mountains and adjoining Basin and Range province

Gravity and structure of the Pacific continental margin of Central Mexico

Geothermal and structural implications of magnetic anomalies observed over the southern Oregon Cascade Mountains and adjoining Basin and Range province

Geologic structure of the western continental margin of south central Baja California based on seismic and potential field data

Frequency response function analysis of the equatorial margin of Brazil using gravity and bathymetry

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