Download or read book An Interpretation of the Gravity and Magnetic Anomalies of the Rivera Fracture Zone Eastern Pacific Ocean written by William Harold Gumma and published by . This book was released on 1974 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Gravity written by P. Dehlinger and published by Elsevier. This book was released on 1978-01-01 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Gravity
Download or read book Highlights in Marine Research written by and published by . This book was released on 1984 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reports and abstracts in this volume illustrates the breadth and depth of U.S. Geological Survey (USGS) research in marine geology.
Download or read book U S Geological Survey Circular written by and published by . This book was released on 1984 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A GEOPHYSICAL ANALYSIS OF THE OROZCO FRACTURE ZONE AND THE TECTONIC EVOLUTION OF THE NORTHERN COCOS PLATE written by and published by . This book was released on 1975 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: In April of 1974, Oregon State University conducted a geophysical survey of the Orozco fracture zone, a Left-lateral transform fault which offsets the East Pacific Rise off the coast of Mexico near 15°N, 105°W. Magnetic, gravity, bathymetric, and seismic reflection data were collected during a four day period. This survey is combined with previous surveys by Oregon State University and other institutions to provide a geophysical interpretation of the Orozco fracture zone and the surrounding area and to develop a tectonic history of the northern Cocos plate. The Orozco fracture zone is characterized by a typical zone of seismicity and an offset in the magnetic anomaly pattern. There is, however, a conspicuous absence of a well defined topographic trough. This appears to be a result of the small age offset of the ridge crest, a reorientation of the fracture zone trend, and a possible southward migration of the fracture zone down the ridge axis. Three crustal and subcrustal cross sections over the Orozco fracture zone are constructed from the gravity data. One, across the active portion between the ridge offset, shows the active troughs to be underlain by a broad, low-density root extending two kilometers into the mantle. Two gravity cross sections across the East Pacific Rise show a thinning of oceanic layer 3 of nearly 2 kilometers at the rise crest and a corresponding 0.5 kilometer thickening of layer 2. A large magnetic anomaly of over 1300 gammas is found at the intersection of the Orozco fracture zone and the East Pacific Rise. A comparison with a very similar observation at the intersection of the Juan de Fuca ridge and the Blanco fracture zone in the northeast Pacific suggests that the East Pacific Rise is "leaking" into the fracture zone in this area. Many features have been observed on the northern Cocos plate which cannot be accounted for by present Pacific-Cocos motion the northeast strike of the eastern extension of the Orozco fracture zone, an apparent fanning of magnetic anomalies, and the northeast strike, as well as the origin, of the Tehuantepec ridge. Several possible schemes are examined to explain these observations and all but one are completely eliminated. The proposed explanation supposes a reorientation of the spreading center after a large change in the Pacific- Cocos pole of rotation resulting in the Zed pattern described by Menard and Atwater (1968).
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer. This book was released on 1975 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis, (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity was transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 19 (thesis year 1974) a total of 10,045 theses titles from 20 Canadian and 209 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 19 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.
Download or read book The United States Geological Survey in Alaska written by and published by . This book was released on 1984 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book O S U Theses and Dissertations 1970 1977 written by Oregon State University and published by . This book was released on 1980 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnetic and Gravity Anomalies in the Great Valley and Western Sierra Nevada Metamorphic Belt California written by John W. Cady and published by Geological Society of America. This book was released on 1975-01-01 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts with Indexes written by and published by . This book was released on 1981 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Implications of Topography Gravity and Heat Flow on Midocean Ridges written by Roger Neeson Anderson and published by . This book was released on 1973 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Bathymetry and Magnetics of the Wilkes Fracture Zone of the East Pacific Rise at 90S written by Charles L. Kureth and published by . This book was released on 1980 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological and Geophysical Investigation of the Rivera Cocos Plate Boundary written by William Lee Bandy and published by . This book was released on 1992 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Riviera Plate written by Ian Derry Reid and published by . This book was released on 1976 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SIO Reference written by and published by . This book was released on 1974 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reference written by and published by . This book was released on 1975 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1988 with total page 1178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
