Acitve Faults Of Eastern And Southern Taiwan

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Acitve Faults Of Eastern And Southern Taiwan

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Author : Chii-Wen Lin
language : zh-CN
Publisher:
Release Date : 2009

Acitve Faults Of Eastern And Southern Taiwan written by Chii-Wen Lin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

A Review Of Recently Active Faults In Taiwan

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Author : Manuel G. Bonilla
language : en
Publisher:
Release Date : 1975

A Review Of Recently Active Faults In Taiwan written by Manuel G. Bonilla and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Faults (Geology) categories.

An Introduction To The Active Faults Of Taiwan

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Author : Hui-Cheng Chang
language : zh-CN
Publisher:
Release Date : 1998

An Introduction To The Active Faults Of Taiwan written by Hui-Cheng Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Faults (Geology) categories.

An Introduction To The Active Faults Of Taiwan

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Author :
language : en
Publisher:
Release Date : 2000

An Introduction To The Active Faults Of Taiwan written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.

A Geomorphological Study Of Active Faults In Taiwan

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Author : Tsai-Tien Shih
language : en
Publisher:
Release Date : 1977*

A Geomorphological Study Of Active Faults In Taiwan written by Tsai-Tien Shih and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977* with categories.

Active Faults Of Central Taiwan

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Author : Chii-Wen Lin
language : zh-CN
Publisher:
Release Date : 2008

Active Faults Of Central Taiwan written by Chii-Wen Lin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

Motion And Evolution Of The Chaochou Fault Southern Taiwan

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Author : Lauren E. Hassler
language : en
Publisher:
Release Date : 2005

Motion And Evolution Of The Chaochou Fault Southern Taiwan written by Lauren E. Hassler and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

The Chaochou Fault (CCF) is both an important lithologic boundary and a significant topographic feature in the Taiwan orogenic belt. It is the geologic boundary between the Slate Belt to the east, and the Western Foothills to the west. Although the fault is known to be a high angle oblique sinistral thrust fault in places, both its kinematic history and its current role in the development of the orogen are poorly understood. Field fabric data suggest that structural orientations vary along strike, particularly in the middle segment, the suspected location of the intersection of the on-land Eurasian continent-ocean boundary and the Luzon Island Arc. Foliation/solution cleavage is oriented NE-SW and in the northern and southern sections, but ESE-WNW in the middle segment. Slip lineations also reveal a change in fault motion from dip-parallel in the north to a more scattered pattern in the south. This correlates somewhat with recent GPS results, which indicate that the direction of current horizontal surface motion changes along strike from nearly perpendicular to the fault in the northern field area, to oblique and nearly parallel to the fault in the southern field area. The magnitude of vertical surface motion vectors, relative to Lanyu Island, decreases to the south. Surface morphology parameters, including mountain front sinuosity and valley floor width/valley height ratio indicate higher activity and uplift in the north. These observations correlate well with published apatite/zircon fission track data that indicate un-reset ages in the south, and reset ages in the northern segment. Geodetic and geomorphic data indicate that the northern segment of the CCF and Slate Belt are currently undergoing rapid uplift related to oblique arc-continent collision between the Eurasian continent and the Luzon arc. The southern segment is significantly less active perhaps because the orogen is not yet involved in direct arc-continent collision.

Shallow Geological Structure And Hydromechanical Behaviour Of An Active Reverse Fault At Convergent Plate Boundary

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Author : Chung-Hsiang Mu
language : en
Publisher:
Release Date : 2012

Shallow Geological Structure And Hydromechanical Behaviour Of An Active Reverse Fault At Convergent Plate Boundary written by Chung-Hsiang Mu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.

The Chihshang Fault is one of the most active creeping faults in the world at a rate of 2 cm/yr, which is situated along a plate suture between the Philippine Sea and the Eurasian plates in eastern Taiwan. Near the surface, the Chihshang Fault developed in the Holocene unconsolidated gravel layers. This fault behaviour apparently is be influenced by the hydraulic characteristics around the fault zone and in the vicinity of aquifers. In this study, we combined a variety of measurements and analyses at the Chihshang Active Fault Observatory (CAFO), including surface-rupture mapping, three shallow borehole core analyses and kinematic analysis of geodetic measurements, in order to decipher the near-surface fault geometry. We found that the Chihshang Fault has a three-branch fault system with a rather diffused fault zone in the Chinyuan alluvial fan at CAFO, which is composed of at least 100 m thick alluvial deposits. Outside of the Chinyuan River channel, the Chihshang Fault exhibits a single fault system. Combining the uplift rate and subsurface profiles from trench excavation, we interpret that the three fault branches locally developed a pop-up structure at the uppermost 30-40 m unconsolidated gravel layers during the last few thousand years. Based on the ratio between the levelling vertical displacements and the creep meters and GPS horizontal displacements, we obtained dip angles of 34-42°, 60-65° and 16° for two west-vergent thrusts and an east-vergent back thrust, respectively, for these three branches. By compiling the ages data in the boreholes, trenches and terraces, we estimated a long-term relative uplift rate of 2.3 = 0.1 cm/yr in the hanging wall of the Chihshang Fault and an average alluvial sedimentation rate of about 1.1 = 0.1 cm /yr during the past a few thousand years. In order to better understand how the effect of pore-fluid pressure variations in the aquifer within the alluvial gravels influences the near-surface behaviour of the Chihshang Fault, nine observations wells of groundwater were drilled at depths ranging from 30 to 100 m through the aquifer from the footwall to the hanging wall. Monitoring of natural pore pressure variations in piezometers, monthly slug experiments (few seconds), and long duration pumping/injection experiments (hours to days) were carried out during 2007-2011. Together with the subsurface electrical resistivity imaging, surface fracture investigations, and core geological analysis, we identified an aquifer zone that is deformed and fractured by the fault zone. The results showed that the permeability of the faults zone is smaller 1 order than that of the footwall. The variance of permeability caused a 10 meter step of groundwater level from the hanging wall to the footwall in the view of spatial domain. On the other hand, repeated hydraulic tests revealed that the permeability varied with time increased 20 times in the hanging wall from 2007 to 2011. A drastic increase of the permeability in the fault zone was observed from April to September 2008. Two possibilities are interpreted this phenomenon : (1) the increased cumulated earthquake events changed the stress fields along the Chihshang Fault and caused the new fractures around the Fault zone ; (2) the vertical displacement revealed that the dilatation may be happened in the fault zone which increased the porosity to induce a drastic increase of permeability in-situ.

Syn Tectonic Extension And Lateral Extrusion In Taiwan

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Author : Jonathan Richards Gourley
language : en
Publisher:
Release Date : 2006

Syn Tectonic Extension And Lateral Extrusion In Taiwan written by Jonathan Richards Gourley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

Shallow Creep Along The Southern Longitudinal Valley Fault In Eastern Taiwan Using Psinsar And Geodetic Approaches

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Author : 賴彥伯
language : en
Publisher:
Release Date : 2017

Shallow Creep Along The Southern Longitudinal Valley Fault In Eastern Taiwan Using Psinsar And Geodetic Approaches written by 賴彥伯 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.