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Aeromagnetic measurements, magnetic source depths, and the Curie point isotherm in the Vale-Owyhee, Oregon geothermal area

Creator:: Boler, Frances M.
Resource Type:: Masters Thesis
Full Text:: approved: Dr. Richard W. An aeromagnetic survey, conducted in December, 1976, and April, 1977 by Oregon

Crustal structure and thermal gradients of the northern Gulf of California determined using spectral analysis of magnetic anomalies

Creator:: Zamora, Osvaldo Sanchez
Abstract:: Geophysical surveys in the Gulf of California provided the data to construct contour maps of bathymetry, free-air anomalies and total field magnetic anomalies for the area north of 27° N. Major faults such as the Ballenas- Salsipuedes, Tiburón, Guaymas, and the South Cerro Prieto are clearly observable on these maps....
Resource Type:: Dissertation
Full Text:: /m °C, the calculated heat flow averages 114 mW/rn2. Using a two-dimensional Maximum Entropy Method

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:: : STRUCTURE OF THE PANAMA BASIN FROM MARINE GRAVITY DATA Abstract approved: Richard W. Couch In order to

Analysis and interpretation of magnetic anomalies observed in north-central California

Creator:: Huppunen, JoAnne L.
Abstract:: To assist in the assessment of the geothermal potential of north-central California and to aid in defining the geologic transitions between the physiographic provinces of the Klamath Range, the Cascade Range, the Modoc Plateau, the Great Valley, and the Sierra Nevada Range, personnel from the Geophysics Group in the College...
Resource Type:: Dissertation
Full Text:: INTERPRETATION OF MAGNETIC ANOMALIES OBSERVED IN NORTH-CENTRAL CALIFORNIA Abstract approved: Richard W. Couc

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:: approved: Richard W. Couch Gravity measurements made during 1979 and 1980, combined with existing gravity

Crustal structures and tectonism in southeastern Alaska and western British Columbia from seismic refraction, seismic reflection, gravity, magnetic, and microearthquake measurements

Creator:: Johnson, Stephen Hans
Abstract:: Seismic refraction measurements along two unreversed lines indicate that the earth's crust is 26 km thick in southeastern Alaska and 30 km thick along the Inside Passage of British Columbia. The crust in southeastern Alaska, north of Dixon Entrance, consists of a layer 9 km thick with a seismic velocity...
Resource Type:: Dissertation
Full Text:: /sec. The velocity of the mantle below the M discontinuity is 7. 86 km/sec in southeastern Alaska and

Curie-point isotherm mapping and interpretation from aeromagnetic measurements in the northern Oregon Cascades

Creator:: Foote, Robert W.
Abstract:: During the summer and fall of 1982, personnel from the Geophysics Group in the School of Oceanography at Oregon State University conducted an aeromagnetic survey in the northern Oregon Cascades to assess geothermal potential and study the thermal evolution of the Cascade volcanic arc. Total field and low-pass filtered magnetic...
Resource Type:: Masters Thesis
Full Text:: INTERPRETATION FROM AEROMAGNETIC MEASUREMENTS IN THE NORTHERN OREGON CASCADES Abstract approved: Richard W

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:: privacy Redacted for privacy AC KNOW LEDGEMENTS I extend thanks first to Dr. Richard W. Couch for his

Long wavelength gravity anomalies and implications concerning a descending lithospheric slab in the Pacific Northwest

Creator:: MacFarlane, William Thomas
Abstract:: The thermal regime of a postulated descending lithospheric slab is calculated. The gravity anomaly associated with such a structure is large in amplitude and long in wavelengh. Observed free-air gravity anomalies in the Pacific Northwest do not indicate a gravitational effect due to a descending slab. Two hypothetical compensation models...
Resource Type:: Dissertation
Full Text:: , The digital equivalent of the integral equation is the set of equations: m Rdf(i) = E K(s) Rff(i s

Crustal structure of the northwestern continental margin of the Indian subcontinent from gravity and magnetic data

Creator:: Soofi, Muhammad Asif
Abstract:: The continental margin off the coast of Pakistan between the Murray ridge and the Gulf of Cambay has been studied in this work using gravity, magnetic and bathymetric data. Two dimensional gravity and magnetic models based on free-air gravity and residual magnetic data are developed along a north-south profile off...
Resource Type:: Masters Thesis
Full Text:: : -______ ___ Dr. Richard W. Couch The continental margin off the coast of Pakistan between the Murray

ScholarsArchive@OSU

Aeromagnetic measurements, magnetic source depths, and the Curie point isotherm in the Vale-Owyhee, Oregon geothermal area

Crustal structure and thermal gradients of the northern Gulf of California determined using spectral analysis of magnetic anomalies

Structure of the Panama Basin from marine gravity data

Analysis and interpretation of magnetic anomalies observed in north-central California

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

Crustal structures and tectonism in southeastern Alaska and western British Columbia from seismic refraction, seismic reflection, gravity, magnetic, and microearthquake measurements

Curie-point isotherm mapping and interpretation from aeromagnetic measurements in the northern Oregon Cascades

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

Long wavelength gravity anomalies and implications concerning a descending lithospheric slab in the Pacific Northwest

Crustal structure of the northwestern continental margin of the Indian subcontinent from gravity and magnetic data

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