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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:: work. The location of the observed magnetic anomalies with respect to marine magnetic anomaly (28

Downward continuation and transformation of potential fields with application to marine magnetic anomalies

Creator:: Eggers, Dwight Edward
Abstract:: The problem of downward continuation of potential fields is being considered. The basic approach involves computation in real space using a power series expansion. The computation of the derivatives required for evaluating the series is carried out on the basis of two approximation methods, viz. (1) polynomial method, and (2)...
Resource Type:: Masters Thesis
Full Text:: OF THE MAGNETIC TOTAL FIELD ANOMALY 37 Fourier Transform Method 37 Band-Limited Approximation 38

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:: total field magnetic intensity map and low-pass filtered anomaly maps, suggests the sedi- mentary

Crustal structure of the Sulaiman Range, Pakistan, from gravity data

Creator:: Khurshid, Akbar
Abstract:: Gravity data along an east-west profile from the Punjab plain of Pakistan to the western border town of Chaman have been incorporated into interpretation of the gross crustal structure underlying the Sulaiman Range. Interpretation of the free-air, Bouguer, and isostatic gravity anomalies suggests that 15 to 25 km thick, transitional...
Resource Type:: Masters Thesis

Spectral analysis and ridge-regression of magnetic anomalies from the northern continental margin of the Yucatán Peninsula, Mexico

Creator:: Garcia-Abdeslem, Juan
Abstract:: Marine magnetic data from the northern Yucatan continental margin were used to obtain the radially-averaged power-density spectra (RAPDS) of 34 grids, each with dimensions of 128 by 128 km, overlapping 50 percent. Depths to the tops of three magnetic horizons were estimated from the slopes of linear segments in the...
Resource Type:: Dissertation
Full Text:: Magnetic anomaly map 23 STATISTICAL MODELS AND DEPTH TO MAGNETIC SOURCES 26 Statistical models 27 Depth

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:: California. 1 8 5 Gravity trackline map. 1 9 6 Total field magnetic anomaly map of the northern Gulf of

Late Neogene tectonics of the mouth of the Gulf of California

Creator:: Ness, Gordon Everett
Abstract:: Anomaly timescales for the last 90 million years, derived from marine magnetic profiles and published prior to mid-1979, are summarized, illustrated for comparison, and critically reviewed. A revised timescale is constructed using calibration points which fix the ages of anomalies 2.3', 5.5, 24, and 29. An equation is presented for...
Resource Type:: Dissertation
Full Text:: the deep-sea floor west of the tip of the peninsula of Baja California. Additional magnetic anomaly

The Ore bin ; Vol. 30 No. 2 (February 1968)

Creator:: Oregon. Dept. of Geology and Mineral Industries, Emilia, David A., Berg, Joseph W., Bales, W. E., Applegate, Shelton P., Heinrichs, Donald F., and Pietrafesa, Leonard J.
Resource Type:: Journal
Full Text:: gravity anomaly (see fig. 4). 23 Data Reduction and Presentation Figures 1 and 2 show the magnetic

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:: 4 Total-field magnetic anomaly map of the northern Gulfof California

ScholarsArchive@OSU

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

Downward continuation and transformation of potential fields with application to marine magnetic anomalies

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

Crustal structure of the Sulaiman Range, Pakistan, from gravity data

Spectral analysis and ridge-regression of magnetic anomalies from the northern continental margin of the Yucatán Peninsula, Mexico

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

Late Neogene tectonics of the mouth of the Gulf of California

The Ore bin ; Vol. 30 No. 2 (February 1968)

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

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