Survey of the Shallow Structure at the Northeastern end of the Wenchuan Earthquake Fault Zone by Artificial Seismic Profiling

2009 ◽  
Vol 52 (1) ◽  
pp. 196-201
Author(s):  
Wei-Chuan HUANG ◽  
Hong-Kui GE ◽  
Wei YANG ◽  
Li-Li SONG
Keyword(s):  
Wenchuan Earthquake ◽  
Fault Zone ◽  
Earthquake Fault ◽  
Seismic Profiling ◽  
The Wenchuan Earthquake ◽  
Shallow Structure

Primary rock magnetism for the Wenchuan earthquake fault zone at Jiulong outcrop, Sichuan Province, China

2014 ◽  
Vol 619-620 ◽  
pp. 58-69 ◽  
Author(s):  
Dongliang Liu ◽  
Haibing Li ◽  
Teh-Quei Lee ◽  
Yu-Min Chou ◽  
Sheng-Rong Song ◽  
...  
Keyword(s):  
Wenchuan Earthquake ◽  
Fault Zone ◽  
Rock Magnetism ◽  
Sichuan Province ◽  
Earthquake Fault ◽  
The Wenchuan Earthquake

Continuous Permeability Measurements Record Healing Inside the Wenchuan Earthquake Fault Zone

Science ◽  
2013 ◽  
Vol 340 (6140) ◽  
pp. 1555-1559 ◽  
Author(s):  
Lian Xue ◽  
Hai-Bing Li ◽  
Emily E. Brodsky ◽  
Zhi-Qing Xu ◽  
Yasuyuki Kano ◽  
...  
Keyword(s):  
Wenchuan Earthquake ◽  
Fault Zone ◽  
Damage Zone ◽  
Fault Zones ◽  
Deep Borehole ◽  
Earthquake Fault ◽  
Hydraulic Diffusivity ◽  
The Wenchuan Earthquake ◽  
Direct Measurements ◽  
Observation Period

Permeability controls fluid flow in fault zones and is a proxy for rock damage after an earthquake. We used the tidal response of water level in a deep borehole to track permeability for 18 months in the damage zone of the causative fault of the 2008 moment magnitude 7.9 Wenchuan earthquake. The unusually high measured hydraulic diffusivity of 2.4 × 10−2square meters per second implies a major role for water circulation in the fault zone. For most of the observation period, the permeability decreased rapidly as the fault healed. The trend was interrupted by abrupt permeability increases attributable to shaking from remote earthquakes. These direct measurements of the fault zone reveal a process of punctuated recovery as healing and damage interact in the aftermath of a major earthquake.

Internal structure of the Wenchuan earthquake fault zone, revealed by surface outcrop and WFSD-1 drilling core investigation

2014 ◽  
Vol 619-620 ◽  
pp. 101-114 ◽  
Author(s):  
Huan Wang ◽  
Haibing Li ◽  
Jialiang Si ◽  
Zhiming Sun ◽  
Yao Huang
Keyword(s):  
Internal Structure ◽  
Wenchuan Earthquake ◽  
Fault Zone ◽  
Earthquake Fault ◽  
The Wenchuan Earthquake ◽  
Drilling Core

scholarly journals Carbonaceous Materials in the Fault Zone of the Longmenshan Fault Belt: 1. Signatures within the Deep Wenchuan Earthquake Fault Zone and Their Implications

Minerals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 385 ◽  
Author(s):  
Li-Wei Kuo ◽  
Jyh-Rou Huang ◽  
Jiann-Neng Fang ◽  
Jialiang Si ◽  
Haibing Li ◽  
...  
Keyword(s):  
Wenchuan Earthquake ◽  
Fault Zone ◽  
Active Fault ◽  
Carbonaceous Materials ◽  
Coseismic Slip ◽  
Earthquake Fault ◽  
Active Fault Zone ◽  
2008 Wenchuan Earthquake ◽  
Seismic Slip ◽  
Longmenshan Fault

Graphitization of carbonaceous materials (CM) has been experimentally demonstrated as potential evidence of seismic slip within a fault gouge. The southern segment of the Longmenshan fault, a CM-rich-gouge fault, accommodated coseismic slip during the 2008 Mw 7.9 Wenchuan earthquake and potentially preserves a record of processes that occurred on the fault during the slip event. Here, we present a multi-technique characterization of CM within the active fault zone of the Longmenshan fault from the Wenchuan earthquake Fault Scientific Drilling-1. By contrast with field observations, graphite is pervasively and only distributed in the gouge zone, while heterogeneously crystallized CM are present in the surrounding breccia. The composite dataset that is presented, which includes the localized graphite layer along the 2008 Wenchuan earthquake principal slip zone, demonstrates that graphite is widely distributed within the active fault zone. The widespread occurrence of graphite, a seismic slip indicator, reveals that surface rupturing events commonly occur along the Longmenshan fault and are characteristic of this tectonically active region.

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