A5025209141- earthquake and tectonic studies
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Earthquake Detection and Analysis
- Seismology and Earthquake Studies
- Seismic Imaging and Inversion Techniques
- Geological and Geophysical Studies
- Seismic Waves and Analysis
- Geology and Paleoclimatology Research
- Landslides and related hazards
- Geoscience and Mining Technology
- Geochemistry and Geologic Mapping
- Hydrocarbon exploration and reservoir analysis
- Methane Hydrates and Related Phenomena
- Drilling and Well Engineering
- Remote Sensing and Land Use
- Geological Modeling and Analysis
- Lightning and Electromagnetic Phenomena
- Cephalopods and Marine Biology
- Pacific and Southeast Asian Studies
- Geotechnical and Geomechanical Engineering
- Rock Mechanics and Modeling
- Evaluation Methods in Various Fields
- Environmental Quality and Pollution
- Forest, Soil, and Plant Ecology in China
National Taiwan University
2005-2025
National Central University
2015-2024
Chinese Academy of Geological Sciences
2013
China Minmetals (China)
2013
Hebei Agricultural University
2009-2011
Chinese Academy of Sciences
2011
Xi'an Shiyou University
2009
Reactive oxygen species (ROS) are highly reactive, making them useful for environmental and health applications. Traditionally, photocatalysts piezocatalysts have been used to generate ROS, but their utilization is limited by various physical constraints. This study introduces metal-organic frameworks (MOFs) as modern thermocatalysts efficiently producing hydrogen peroxide (H 2 O ) from small temperature differences. Temperature fluctuations, abundant in daily life, offer tremendous...
Research Article| January 01, 2014 Gouge graphitization and dynamic fault weakening during the 2008 Mw 7.9 Wenchuan earthquake Li-Wei Kuo; Kuo * 1National Taiwan University, 10617 Taipei, Taiwan2State Key Laboratory of Continental Tectonic Dynamics, Institute Geology, Chinese Academy Geological Sciences, Beijing 100037, China *E-mail: liweikuo@ntu.edu.tw. Search for other works by this author on: GSW Google Scholar Haibing Li; Li 2State Steven A.F. Smith; Smith 3Instituto Nazionale di...
To unravel fault zone properties, high-resolution imaging and probing are pivotal. Here we present a comprehensive study utilizing Distributed Dynamic Strain Sensing of 3D array optical fiber with surface-to-depth installation, traversing an active at depth, combined geological analysis drilled cores. We identify asymmetric narrow core, exhibiting notable amplification in strain rate across broad-band frequency range, which is attributed to the presence weak gouge material within much...
The Taiwan Chelungpu‐fault Drilling Project (TCDP) Hole‐A recovered continuous core samples across the rupture zone of 1999 Chi‐Chi earthquake (Mw7.6). Studying in‐situ chemical properties sequentially from fresh‐fault‐zone materials Chelungpu fault provides insight into possible faulting mechanisms. Distinct anomalies mineral assemblages at 1111‐m TCDP are found to be: (1) A decrease in clay content within primary slip (PSZ); and (2) significant decline illite, disappearance chlorite...
Fault rocks are influenced by physical conditions such as frictional properties, temperature, effective normal stress, and differential stress. Their formation is examined with respect to energy distribution in fault zones, slip velocity, etc. In this study, the fault-zone materials were retrieved from Hole-A of MiDAS project at 491.3 m which extremely fractured quartz was found vicinity upper boundary active Milun zone. The analyzed using optical microscopy, X-ray powder diffraction (XRD),...
In this study, we conduct a multi-disciplinary including geophysics, geochemistry, and geology, with help of tens previously drilled exploration wells, to reconstruct geothermal geological models at the shallow 3-5 km, for project in Tatun volcano area, northern Taiwan. Our reconstructed profiles show that volcanoes have ~1-2-km thick lava flows pyroclastic deposits, erupted on top 6-8-km-thick fold-and-thrust belt Miocene sedimentary rocks. The seismic velocity imaging indicates likely main...
The 2018 Hualien earthquake (Mw 6.4) resulted in the Milun fault rupture and caused hundreds of casualties. last Fault occurred 1951, implying a short recurrence interval for Fault. outcropped has not been recognized field, its architecture relevant processes triggered during seismic cycle remain unknown. This represents significant limitation our understanding mechanics hazard assessment.The Drilling All-inclusive Sensing project (MiDAS) was conducted 2020, drilling borehole cores showed...
One moderate- to large-magnitude earthquake (M > 6) nucleates in Earth's crust every three days on average, but the geological record of ancient fault slip at meters-per-second seismic velocities (as opposed subseismic slow-slip creep) remains debated because lack established fault-zone evidence slip. Here we show that irreversible temperature-dependent transformation carbonaceous material (CM, a constituent many gouges) into graphite is reliable tracer We sheared CM-bearing rocks laboratory...
The main objective of the Taiwan Chelungpu-fault Drilling Project (TCDP) was to conduct an in-depth probe into a fault zone recent major activity so as gain better understanding and more insight physical, mechanical chemical properties involved.By end 2004, with completion drilling Hole-A, cuttings from 0 431.34 m cores 431.34-to 2003.26-mdepth had been obtained.Stratigraphically, Pliocene Pleistocene Cholan Formation is found surface 1029-m depth predominantly composed sandstone...
Abstract Understanding the stress state before and after an earthquake is essential to study how on faults evolves during seismic cycle. This integrates wellbore failure analysis, laboratory experiments, edge dislocation model Chi‐Chi earthquake. The post‐earthquake in‐situ observed along boreholes of Taiwan Chelungpu‐fault Drilling Project (TCDP) heterogeneous due lithological variations. Along borehole, we observe that drilling‐induced tensile fractures are only present in sandstones,...
Abstract Typical rocks at shallow depths of seismogenic faults are fluid-rich gouges. During earthquakes, on-fault frictional heating may trigger thermal pressurization and dynamic fault weakening. We show that melting, rather than pressurization, occurred during the 2008 MW 7.9 Wenchuan earthquake, China. One year after we found an ~2-mm-thick, glass-bearing pseudotachylyte (solidified melt) in gouges retrieved 732.6 m depth from first borehole Earthquake Fault Scientific Drilling Project....
Research Article| June 01, 2012 An earthquake slip zone is a magnetic recorder Yu-Min Chou; Chou 1Department of Geosciences, National Taiwan University, 1, Roosevelt Road Section 4, Taipei 10617, Taiwan2Géosciences & Environnement Cergy, Université de Cergy-Pontoise, 5 mail Gay Lussac, Neuville sur Oise, 95031 Cergy-Pontoise cedex, France Search for other works by this author on: GSW Google Scholar Sheng-Rong Song; Song * Taiwan3International Laboratory (LIA) ADEPT, CNRS-NSC, France-Taiwan...
Abstract Fault mirrors (FMs) are naturally polished and glossy fault slip surfaces that can record seismic deformation at shallow depths. They important for investigating the processes controlling dynamic slip. We characterize FMs in borehole samples from hanging wall damage zone of active Hsiaotungshi reverse fault, Taiwan. Here we report first documented occurrence combination silica gel melt patches coating FMs, with resembling those observed on experimentally formed were cataclastically...
Abstract Experimental results demonstrate that amorphous materials can be generated by frictional sliding at a wide range of conditions and once formed the strength fault is reduced. Nevertheless, have not been described in many natural faults, their importance systems well understood. We identified within 3‐mm‐thick slip zone (i.e., narrow band) Chihshang Fault, Taiwan, as submicrometer thick band distributed network scaly clays. The clays resemble those developed other faults demonstrably...
Taiwan Chelungpu-fault Drilling Project (TCDP) was initiated to understand the physical mechanisms involved in large displacements of 1999 Chi-Chi earthquake. Continuous measurements cores (including laboratory work) and a suite geophysical downhole logs, including P- S-wave sonic velocity, gamma ray, electrical resistivity, density, temperature, borehole images dipole-shear imager, were acquired Hole-A over depth 500–2003 m. Integrated studies logs facilitate qualitative quantitative...
In recent works on the determination of graphitization carbonaceous materials (CM) within principal slip zone (PSZ) Longmenshan fault (China), we demonstrated that formation graphite, resulted from strain and frictional heating, could be evidence past seismic slip. Here utilize Raman Spectroscopy CM (RSCM) CM-bearing gouges in belt, at borehole depth 760 m (FZ760) Wenchuan earthquake Fault Scientific Drilling project-1 (WFSD-1), to quantitatively characterize further retrieve ancient...