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Dynamics of deformation at plate bou...

Chuang, Yun-Ruei.

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Dynamics of deformation at plate boundaries: Taiwan orogen and San Andreas fault system in Southern California.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Dynamics of deformation at plate boundaries: Taiwan orogen and San Andreas fault system in Southern California./
作者:	Chuang, Yun-Ruei.
面頁冊數:	183 p.
附註:	Source: Dissertation Abstracts International, Volume: 76-04(E), Section: B.
Contained By:	Dissertation Abstracts International76-04B(E).
標題:	Geophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3665527
ISBN:	9781321381238

Dynamics of deformation at plate boundaries: Taiwan orogen and San Andreas fault system in Southern California.
Chuang, Yun-Ruei.

Dynamics of deformation at plate boundaries: Taiwan orogen and San Andreas fault system in Southern California. - 183 p.

Source: Dissertation Abstracts International, Volume: 76-04(E), Section: B.

Thesis (Ph.D.)--Indiana University, 2014.

This item is not available from ProQuest Dissertations & Theses.

This thesis investigates the problem of estimating deep fault structure and fault slip rates in two distinct plate boundary zones: the Taiwan active orogenic belt and the southern California transform fault system. For Taiwan I use a uniform stress drop model to estimate coseismic fault geometry and slip distribution for the 2013 Nantou and Rueisuei earthquake sequences by inverting geodetic displacement data. The Nantou earthquake sequence illuminates an east-dipping ramp fault in central Taiwan at depths of &sim;5--20 km which appears to connect to the shallow frontal detachment system. The Rueisuei earthquake illuminates a high-angle, west-dipping Central Range fault in eastern Taiwan at depths of 4--20 km, supporting an idea that the Central Range fault is the backthrust of a doubly-vergent Taiwan orogenic wedge.

ISBN: 9781321381238Subjects--Topical Terms:

535228
Geophysics.

Dynamics of deformation at plate boundaries: Taiwan orogen and San Andreas fault system in Southern California.
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245 1 0 $a Dynamics of deformation at plate boundaries: Taiwan orogen and San Andreas fault system in Southern California.
300 $a 183 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-04(E), Section: B.
500 $a Adviser: Kaj M. Johnson.
502 $a Thesis (Ph.D.)--Indiana University, 2014.
506 $a This item is not available from ProQuest Dissertations & Theses.
520 $a This thesis investigates the problem of estimating deep fault structure and fault slip rates in two distinct plate boundary zones: the Taiwan active orogenic belt and the southern California transform fault system. For Taiwan I use a uniform stress drop model to estimate coseismic fault geometry and slip distribution for the 2013 Nantou and Rueisuei earthquake sequences by inverting geodetic displacement data. The Nantou earthquake sequence illuminates an east-dipping ramp fault in central Taiwan at depths of &sim;5--20 km which appears to connect to the shallow frontal detachment system. The Rueisuei earthquake illuminates a high-angle, west-dipping Central Range fault in eastern Taiwan at depths of 4--20 km, supporting an idea that the Central Range fault is the backthrust of a doubly-vergent Taiwan orogenic wedge.
520 $a To estimate fault slip rates in southern California, I follow the concept of block modeling, which describes present-day surface velocities as the sum of long-term block motion (steady-state component) and interseismic strain accumulation (transient component). I develop improved models of both the steady-state and transient components. I use a viscoelastic layer model for the transient component with consideration of nonsteady mantle flow and deep fault creep to help reconcile discrepancies between the geologic and geodetic slip rates along some faults in southern California. In this model, faults in the early/late earthquake cycles infer higher/lower slip rates than classic elastic block models. For the steady-state component, I improve on the traditional kinematic approach with a dynamic viscoelastic thin-sheet model with imposed stress boundary conditions and lithospheric and fault zone viscosity. This model is used to estimate physically-constrained fault slip rates in southern California. The far-field tectonic load is the main driving force and the model favors high lithospheric viscosity suggesting the blocks of lithosphere between faults tend to be relatively rigid.
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