Index Catalog // ScholarsArchive@OSU

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

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:: mistakes. A note of appreciation is extended to Dr. Richard J. Blakely for his prompt review of this

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:: -25 x .25 f(x) = 0 x '25; x < -25 KM 500 400 300 200 100 0 01 I 100 300 400 500 j.) Figure 5

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

Crustal structure and faulting of the Gulf of California from geophysical modeling and deconvolution of magnetic profiles

Creator:: Doguin, Pierre
Abstract:: Using gravity, magnetic, bathymetric and seismic refraction data, I have constructed a geophysical cross-section of the central part of the northern Gulf of California. The section exhibits a crustal thickness of 18 km and features an anomalous block of high density lower basement (3.15 g/cm³) which probably resulted from rifting...
Resource Type:: Masters Thesis
Full Text:: Commencement June 1990 J Associate Professor of Geophysics in charge of major Dean of/College of Oce

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

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:: of MASTER OF SCIENCE in GEOPHYSICS presented on r- j,ig77 Title: CRUSTAL STRUCTURE OF THE

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

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:: CONTINENTAL MARGIN OF CENTRAL MEXICO Abs tract approved: Richard W. Couch Data collected by personnel of

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:: ACKNOWLEDGEMENTS I would like to give special thanks, and recognition to Dr. Richard Couch, my major professor

ScholarsArchive@OSU

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

Structure of the Panama Basin from marine gravity data

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

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

Crustal structure and faulting of the Gulf of California from geophysical modeling and deconvolution of magnetic profiles

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

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

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

Gravity and structure of the Pacific continental margin of Central Mexico

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

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