# Browse Dissertations and Theses - Geology by Subject "Geophysics"

• (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 ...

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• (2008)
Finally, I addressed the cause of discrepancies in current studies of the effect of water on elastic properties of wadsleyite. To rule out the systematic errors in the determination of water content measured by different ...

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• (2007)
Knowledge of elastic properties of the phases constituting the Earth's mantle are of extreme importance for determination of Earth's chemical composition, the distribution of phases and the processes that result in such ...

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• (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 ...

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• (1990)
Over the last several decades, the shallow temperature survey has been developed as a surface geophysical method in ground water and geothermal energy exploration. Advances in numerical modeling techniques have made it ...

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• (1979)

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• (2009)
To measure the thermal conductivity of compressed materials, I employed the time-domain thermoreflectance (TDTR) method combining with the diamond anvil cell technique (Chapter 5). I report high-pressure thermal conductivity ...

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• (1979)

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• (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 ...

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• (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. ...

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• (2007)
Finally, examinations of systematic earthquake mislocations from P wave double differences show that it couldn't explain the BC-DF time change over years, so the inner core rotation observation is valid.

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• (1997)
Variable viscosity thermal convection at infinite Prandtl number in a thick spherical shell is modeled using the finite element method. The discretized tensor Navier-Stokes equations are solved with the multigrid method ...

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