Index Catalog // ScholarsArchive@OSU

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:: AN ABSTRACT OF THE THESIS OF JOANNE L. HUPPUNEN for the degree

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:: most appreciated. Dr. G. Bodvarsson, Dr. D. Caidwell, Dr. R. Couch, Dr. L. Schecter and Dr. W, Stone

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:: OF THE EOUATORIAL MARGIN OF BRAZIL USING GRAVITY AND BATHYMETRY Abstract approved: Richard W

Crustal structure of the Continental Borderland and the adjacent portion of Baja California between latitudes 30⁰N and 33⁰N

Creator:: Plawman, Thomas Leon
Abstract:: Gravity, magnetic and seismic data indicate that the oceanic crust is 9.7 km thick west of the Continental Borderland. The top of the mantle is about 12 km deep under the Borderland, and deepens to 27 km beneath the Peninsular Ranges of Baja California. The mantle is about 20 km...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Richard W. Couch Gravity, magnetic and seismic data indicate that the oceanic crust is

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

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

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

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:: AND RANGE PROVINCE Abstract approved: Richard W. Couch To assist in the assessment of the

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:: This research was initiated and guided by Dr. Richard W. Couch. I am grateful for his advice and

Crustal structure of the Baja Peninsula between latitudes 22 ̊N and 25 ̊N

Creator:: Huehn, Bruce
Abstract:: Geophysical data collected in 1975 and 1976 reveal major crustal and tectonic elements of the continental margin of southern Baja California. Gravity, magnetic, seismic reflection and bathymetric data show seaward extension of the islands enclosing Magdalena and Almejas Bays. A seismic reflection profile, oriented approximately normal to the trend of...
Resource Type:: Masters Thesis
Full Text:: LATITUDES 22°N and 25°N Abstract approved: Richard W. Couch Geophysical data collected in 1975 and 1976

ScholarsArchive@OSU

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

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

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

Crustal structure of the Continental Borderland and the adjacent portion of Baja California between latitudes 30⁰N and 33⁰N

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

Structure of the Panama Basin from marine gravity data

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

Geothermal and structural implications of magnetic anomalies observed over 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

Crustal structure of the Baja Peninsula between latitudes 22 ̊N and 25 ̊N

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