# Browse Dissertations and Theses - Geology by Contributor "Chen, Wang-Ping"

• (1999)
Characteristics of two important deep earthquake sequences are studied: (i) the September 29, 1973 Japan Sea earthquake (Mw 7.8, depth 575 km)---the largest deep earthquake in the entire western Pacific, and (ii) the August ...

application/pdf

PDF (5MB)
• (1987)
This thesis is devoted to a study of two unique zones of slow, internal deformation occurring in oceanic lithosphere: namely, the Azores-Gibraltar plate boundary in the eastern Atlantic Ocean and the Davie Ridge-Madagascar ...

application/pdf

PDF (6MB)
• (1993)
Precise source parameters, including focal depths and mechanisms, of 74 large to moderate-sized $(m\sb{b} \ge 5.5)$ earthquakes that occurred along the Kuril-Kamchatka arc between 1963 and 1991 were determined by inverting ...

application/pdf

PDF (6MB)
• (1994)
This dissertation investigates dynamic processes in the mantle using source parameters, waveforms, and travel times associated with deep-focus earthquakes. First, I systematically determined the focal mechanisms and depths ...

application/pdf

PDF (9MB)
• (2002)
Using high-resolution, triplicate body waveforms, I investigate strong lateral variations in P- and SH-wave speeds (VP and VS) beneath the Tonga subduction zone where cold lithosphere is subducting rapidly at 200 mn/yr. ...

application/pdf

PDF (6MB)
• (2009)
Additional evidence for this conclusion comes from my study of eleven intracontinental earthquakes, with magnitudes ranging from 4.9 to 6, which occurred in the mantle beneath the western Himalayan syntaxis, the western ...

application/pdf

PDF (3MB)
• (2007)
For the continental collision zone, I show that due to high VP near the bottom of the mantle transition zone, the contrast in VP across the 660-km discontinuity beneath central Tibet is small (around 3.1%): only about 70% ...

application/pdf

PDF (5MB)
• (2011-08-25)
Seismic methods using natural earthquakes are commonly applied to investigate the velocity structures of the crust and upper mantle. Among all these methods, seismic tomography is one of the most powerful tools to image ...

application/pdf

PDF (9MB)