Tectonics of Western Tibet, between the Tarim and the Indus

Matte, Philippe

doi:10.1016/0012-821x(96)00086-6

Cited by 448 publications

(432 citation statements)

References 35 publications

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“…With sparse GPS observations, Li [9] presented an upper bound on present-day slip rates of less than 2 mm/year. Approximately 5 mm/year convergence was inferred for structures within the western Kunlun fault [16]; (2) Another segment is the left-slip Karakax fault parallel to the western Kunlun thrust system, which is a re-activating Jurassic-Cretaceous left-lateral shear zone along the northern boundary of the western Kunlun batholith [17]. Using GPS data between 1993 and 1998, Shen et al [18] estimated a slip rate of~9 mm/year, which is very different from the geological result of~20 mm/year from Landsat images [19].…”

Section: Geological Backgroundmentioning

confidence: 99%

Deformation and Source Parameters of the 2015 Mw 6.5 Earthquake in Pishan, Western China, from Sentinel-1A and ALOS-2 Data

Wen

Liu

et al. 2016

Remote Sensing

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Abstract:In this study, Interferometric Synthetic Aperture Radar (InSAR) was used to determine the seismogenic fault and slip distribution of the 3 July 2015 Pishan earthquake in the Tarim Basin, western China. We obtained a coseismic deformation map from the ascending and descending Sentinel-1A satellite Terrain Observation with Progressive Scans (TOPS) mode and the ascending Advanced Land Observation Satellite-2 (ALOS-2) satellite Fine mode InSAR data. The maximum ground uplift and subsidence were approximately 13.6 cm and 3.2 cm, respectively. Our InSAR observations associated with focal mechanics indicate that the source fault dips to southwest (SW). Further nonlinear inversions show that the dip angle of the seimogenic fault is approximate 24˝, with a strike of 114˝, which is similar with the strike of the southeastern Pishan fault. However, this fault segment responsible for the Pishan event has not been mapped before. Our finite fault model reveals that the peak slip of 0.89 m occurred at a depth of 11.6 km, with substantial slip at a depth of 9-14 km and a near-uniform slip of 0.2 m at a depth of 0-7 km. The estimated moment magnitude was approximately Mw 6.5, consistent with seismological results.

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Section: Geological Backgroundmentioning

confidence: 99%

Deformation and Source Parameters of the 2015 Mw 6.5 Earthquake in Pishan, Western China, from Sentinel-1A and ALOS-2 Data

Wen

Liu

et al. 2016

Remote Sensing

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“…In the Late Jurassic-early Cretaceous period, the Qiangtang and Lhasa blocks collided along the BangongNujiang suture (Matte et al 1996;Yin and Harrison 2000). This collision resulted in volcanic activity and changed the depositional facies from marine to nonmarine in the Banggong-Nujiang zone ).…”

Section: Regional Tectonic Settingmentioning

confidence: 99%

Mesozoic and Cenozoic Cooling History of the Qiangtang Block, Northern Tibet, China: New Constraints from Apatite and Zircon Fission Track Data

Song¹,

Wang²,

Fu³

et al. 2013

Terr. Atmos. Ocean. Sci.

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This study used a new set of zircon and apatite fission track ages to quantitatively document the tectonic evolution and cooling histories of the Qiangtang block of the central Tibetan Plateau. The results indicate that the Qiangtang block underwent three cooling stages at ~148 -73, ~50 -20, and ~20 -0 Ma. The three-stage cooling history and tectonic exhumation were controlled by the closure of the Bangong-Nujiang Suture during the Late Jurassic-Late Cretaceous, the India-Asia collision in the Paleogene, and the underthrusting of the India Plate during the Late Cenozoic. In addition to revealing the Late JurassicLate Cretaceous cooling events, the annealing patterns of the zircon fission track samples indicate different burial depths, which may help identify the Jurassic basin characteristics of the Qiangtang block. The apatite fission track (AFT) ages range from 60 ± 5 Ma to 26 ± 3 Ma, with a mean age of 44 Ma. These ages indicate that the Cenozoic exhumation of the Qiangtang block may have started in the Eocene. Inverse modeling of the AFT data shows that the Qiangtang block had a relatively slow cooling rate of approximately 0.5 -1°C Myr -1 from 50 to 20 Ma. After ~20 Ma, most of the samples show evidence for a rapid cooling stage with a cooling rate of 4 -6°C Myr -1 .

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“…The protoliths to the Precambrian metamorphic rocks had undergone amphibolite facies metamorphism in the Neoproterozoic (ca. 1.0-0.9 and 0.8 Ga) (Matte et al, 1996;Yuan et al, 2002Yuan et al, , 2003Xiao et al, 2003;Zhang et al, 2003aZhang et al, , 2007. The basement is overlain by a low-grade metamorphosed Upper Neoproterozoic (Sinian; ca.…”

Section: Regional Geologymentioning

confidence: 99%

Geological characteristics and age of the Dahongliutan Fe-ore deposit in the Western Kunlun orogenic belt, Xinjiang, northwestern China

Wang

Huang

et al. 2016

Journal of Asian Earth Sciences

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Tectonics of Western Tibet, between the Tarim and the Indus

Cited by 448 publications

References 35 publications

Deformation and Source Parameters of the 2015 Mw 6.5 Earthquake in Pishan, Western China, from Sentinel-1A and ALOS-2 Data

Deformation and Source Parameters of the 2015 Mw 6.5 Earthquake in Pishan, Western China, from Sentinel-1A and ALOS-2 Data

Mesozoic and Cenozoic Cooling History of the Qiangtang Block, Northern Tibet, China: New Constraints from Apatite and Zircon Fission Track Data

Geological characteristics and age of the Dahongliutan Fe-ore deposit in the Western Kunlun orogenic belt, Xinjiang, northwestern China

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