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Book Synopsis Oceanic Spreading Center Accretionary Process Studies with Ocean Bottom Seismometers by : Robert Anthony Sohn
Download or read book Oceanic Spreading Center Accretionary Process Studies with Ocean Bottom Seismometers written by Robert Anthony Sohn and published by . This book was released on 1996 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Oceanic Spreading Center Hydrothermal Processes Using Ocean Bottom Seismometers by : Charles Edward Golden
Download or read book Investigation of Oceanic Spreading Center Hydrothermal Processes Using Ocean Bottom Seismometers written by Charles Edward Golden and published by . This book was released on 2000 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of the Upper Oceanic Floor Using Ocean Bottom Seismometers by : Allan Wayne Sauter
Download or read book Studies of the Upper Oceanic Floor Using Ocean Bottom Seismometers written by Allan Wayne Sauter and published by . This book was released on 1987 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Broadband Seismology in the Oceans by :
Download or read book Broadband Seismology in the Oceans written by and published by . This book was released on 1995 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
An ocean bottom seismograph was deployed on the seaward side of the Kuril Trench off Hokkaido, Japan, in 5460 m of water, in August 1975 during the joint Soviet-American Tsunami Expedition. During the seven-day record, S-P times were distributed in three groups: 19-24 sec, corresponding to aftershocks of the 10 June and 13 June 1975 earthquakes southeast of Nemuro, Japan and to earthquakes east of Sanriku, Japan; approximately 30 sec, from south of Erimo Peninsula, Hokkaido; and approximately 100 sec, from the Izu-Bonin Islands. Seven earthquakes, with hypocenters well determined by the land seismic net, are studied in detail. A shallow focus earthquake yields typical oceanic mantle velocities shallower than 50 km in the slab which dips under the Japanese archipelago. However, deeper focus earthquakes reveal anomalously high velocities averaged over the upper 230 km, in agreement with the models of Utsu and Oliver and Isacks. Two deep earthquakes, whose paths lie in the Pacific Ocean asthenosphere, suggest a velocity 3% lower than that predicted by Jeffreys-Bullen, in agreement with the above models. Spectral analysis of S arrivals suggests Q sub s values of 1000-1500 for nearby earthquakes and 4000-6000 for longer-distance earthquakes, implying an unusual attenuation mechanism for long travel paths, which enhances the high frequencies.
Book Synopsis Ocean Bottom Seismometer Study of the Kuril Trench Area by : Junzo Kasahara
Download or read book Ocean Bottom Seismometer Study of the Kuril Trench Area written by Junzo Kasahara and published by . This book was released on 1976 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ocean bottom seismograph was deployed on the seaward side of the Kuril Trench off Hokkaido, Japan, in 5460 m of water, in August 1975 during the joint Soviet-American Tsunami Expedition. During the seven-day record, S-P times were distributed in three groups: 19-24 sec, corresponding to aftershocks of the 10 June and 13 June 1975 earthquakes southeast of Nemuro, Japan and to earthquakes east of Sanriku, Japan; approximately 30 sec, from south of Erimo Peninsula, Hokkaido; and approximately 100 sec, from the Izu-Bonin Islands. Seven earthquakes, with hypocenters well determined by the land seismic net, are studied in detail. A shallow focus earthquake yields typical oceanic mantle velocities shallower than 50 km in the slab which dips under the Japanese archipelago. However, deeper focus earthquakes reveal anomalously high velocities averaged over the upper 230 km, in agreement with the models of Utsu and Oliver and Isacks. Two deep earthquakes, whose paths lie in the Pacific Ocean asthenosphere, suggest a velocity 3% lower than that predicted by Jeffreys-Bullen, in agreement with the above models. Spectral analysis of S arrivals suggests Q sub s values of 1000-1500 for nearby earthquakes and 4000-6000 for longer-distance earthquakes, implying an unusual attenuation mechanism for long travel paths, which enhances the high frequencies.
Book Synopsis Modern Ocean Floor Processes and the Geological Record by : Rachel A. Mills
Download or read book Modern Ocean Floor Processes and the Geological Record written by Rachel A. Mills and published by Geological Society of London. This book was released on 1998 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
I demonstrate that the OBS orientations can be robustly estimated through maximizing the correlation between the diagonal and cross terms of the noise correlation function. This method is applied to the ELSC OBS experiment dataset and the obtained orientations are consisent with results from a conventional teleseismic method. The new method is promising for a wide range of applications.
Book Synopsis Imaging the Seismic Structure Beneath Oceanic Spreading Centers Using Ocean Bottom Geophysical Techniques by :
Download or read book Imaging the Seismic Structure Beneath Oceanic Spreading Centers Using Ocean Bottom Geophysical Techniques written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: I demonstrate that the OBS orientations can be robustly estimated through maximizing the correlation between the diagonal and cross terms of the noise correlation function. This method is applied to the ELSC OBS experiment dataset and the obtained orientations are consisent with results from a conventional teleseismic method. The new method is promising for a wide range of applications.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1999 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Special Issue on Oceanic Spreading Center Processes by :
Download or read book Special Issue on Oceanic Spreading Center Processes written by and published by . This book was released on 2011 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explorations written by and published by . This book was released on 1997 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: