A5108036124- earthquake and tectonic studies
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geological and Geophysical Studies
- Geochemistry and Geochronology of Asian Mineral Deposits
- Earthquake Detection and Analysis
- Seismic Imaging and Inversion Techniques
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Seismic Waves and Analysis
- Geoscience and Mining Technology
- Seismology and Earthquake Studies
- Geological Studies and Exploration
- Geomechanics and Mining Engineering
- Geophysical and Geoelectrical Methods
- Geomagnetism and Paleomagnetism Studies
- Geology and Paleoclimatology Research
- Magnetic confinement fusion research
- Landslides and related hazards
- Geophysical Methods and Applications
- Remote Sensing and Land Use
- Geotechnical and Geomechanical Engineering
- Liver Disease Diagnosis and Treatment
- Pleistocene-Era Hominins and Archaeology
- Machine Fault Diagnosis Techniques
Tibet University
2023-2024
Chinese Academy of Sciences
2014-2023
Institute of Tibetan Plateau Research
2014-2023
Center for Excellence in Tibetan Plateau Earth Sciences
2014-2023
University of Chinese Academy of Sciences
2008-2023
Yunnan University
2021
Institute of Plasma Physics
2017-2018
Uplift
2017
Institute of Geology, China Earthquake Administration
2004-2013
China Earthquake Administration
2004-2013
The fate of the colliding Indian and Asian tectonic plates below Tibetan high plateau may be visualized by, in addition to seismic tomography, mapping deep discontinuities, like crust-mantle boundary (Moho), lithosphere-asthenosphere (LAB), or discontinuities at 410 660 km depth. We herein present observations with P S receiver function techniques beneath central western Tibet along two new profiles discuss results connection from earlier profiles, which did observe LAB. LAB is well-imaged...
We have obtained velocity images of the uppermost mantle beneath China by performing tomographic inversion both Pn and Sn traveltimes. From Annual Bulletin Chinese Earthquakes, 99,139 arrivals 43,646 were selected. anisotropy was also simultaneously with velocity. Average velocities are 8.05 4.55 km/s, respectively, maximum perturbations about 3–4%. The low in eastern high western China. Particularly associated old basins (for example, Tarim, Junggar, Turpan‐Hami, Qaidam, Sichuan) stable...
Abstract We analyze the teleseismic waveform data recorded by 42 temporary stations from Y2 and ANTILOPE‐1 arrays using P S receiver function techniques to investigate lithospheric structure beneath western Tibet. The Moho is reliably identified as a prominent feature at depths of 55–82 km in stacked traces depth migrated images. It has concave shape reaches deepest location about 80 north Indus‐Yarlung suture (IYS). An intracrustal discontinuity observed ~55 below southern Lhasa terrane,...
Abstract The ongoing India‐Asia collision principally regulates the Cenozoic tectonic deformation of Asian interior, and builds a far‐away but active spectacular intraplate orogen—Tian Shan. However, deep processes dynamics far‐field propagation resultant Tian Shan building remain ambiguous. Here, we construct systematic numerical models with variable thermo‐rheological properties orogen‐featured blocks convergence rates, which reveal that effect on is strongly controlled by direct Indian...
A three‐dimensional P wave velocity model of the crust and upper mantle down to 400‐km depth beneath eastern Tibet is obtained using many temporary seismic stations ASCENT project Namche Barwa Broadband Seismic Network. We collected 16,508 arrival times P, Pn Pg phases from 573 local regional earthquakes 7,450 arrivals seismograms 435 teleseismic events. Our high‐quality data set enables us reconstruct 3‐D structure under in more detail than previous studies. In shallow depth, our results...
Southernmost Tibet exhibits an anomalously twice the normal thickness of average continental crust. There is no available theory to explain and driving mechanism remains uncertain. Here, we interpret a north-striking, 180 km-long deep seismic reflection profile traversing southern Lhasa terrane (SLT) central (CLT). In addition reflections showing subducting Indian crust, our results reveal lateral heterogeneity between SLT CLT, where north-dipping beneath CLT outline tilted crystalline...
Abstract The Pamir plateau protrudes ∼300 km between the Tajik‐ and Tarim‐basin lithosphere of Central Asia. Whether its salient location shape are caused by forceful indentation a promontory Indian mantle is debated. We present new local‐seismicity focal‐mechanism catalog, P‐ wave velocity model eastern part collision system. data suggest south‐dipping Asian slab that overturns in easternmost segment. largest principal stress at depth acts normal on orientated parallel to plate convergence...
Detailed high-resolution images of the crust–mantle and lithosphere–asthenosphere boundaries (the Moho LAB, respectively) have been well observed by applying an S-receiver function technique to data collected Hi-CLIMB (Himalayan-Tibetan Continental Lithosphere During Mountain Building) experiment. The depth variation in range ∼50–70 km is good agreement with that from previous P-receiver results. significant LAB indicates subducting Indian lithosphere drops northwards a ∼80 beneath Himalayas...
Abstract We employ the P and S receiver function technique to data from 44 seismic stations deployed in eastern Himalayan syntaxis investigate crustal thickness, average Poisson's ratio, depth of lithosphere‐asthenosphere boundary (LAB). The observed thickness exhibits an overall NE‐deepening trend, varying 55 75 km. Two anomalous areas lie west east Namche Barwa characterized by thinner thicker crust, respectively. ratios within study area are low north moderate elsewhere with some high...
Abstract The deep crustal deformation in the east Pamir response to Cenozoic collision with Tien Shan and Tarim Basin is so far poorly constrained. We present new insights into structure of its surrounding regions using P receiver functions from 40 temporary permanent seismic stations. thickness reaches a maximum 88 km beneath central southern decreases sharply 50–60 along 41–50 below Basin. most prominent structures involve double Moho, suggesting eastward underthrusting lower crust Pamir,...
Abstract We present detailed lithospheric images of the NE Tibetan Plateau by applying depth migration technique to S receiver functions derived from 113 broadband stations. Our migrated indicate that lithosphere‐asthenosphere boundary (LAB) lies at depths 105–120 km beneath Qilian terrane and reaches 126–140 below Alxa Ordos blocks. The most prominent variation in LAB is presence steps no less than 20 transition zone between active surrounding cratonic blocks, which conflicts with model...
Abstract A comparatively complete layout chart is built by using small shot interval and receiver spacing in Tianjin–Beijing–Chicheng Deep Seismic Sounding profile. Based on the DSS data of profile, crustal structure tectonic coupling are studied rift‐depression basin eastern North China Yanshan mountain uplift. existing researches region, seismic environment further analyzed segment Zhangjiakou–Bohai belt. The result shows that feature interface crystalline basement Craton correlated with...
Tarim basin is usually regarded as a rigid tectonic block that resists the northward expansion of Tibetan plateau associated with ongoing motion Indian plate. The structural complexity its boundaries adjacent units inferred from seismological studies suggests, however, this simple view static under north-south compression needs revision. Here, we demonstrate (from Global Position System data) rotating clockwise (at rate 0.461°/Myr) around (virtual) vertical axis within unit. This rotation...