Fission track evidence for the Mesozoic-Cenozoic tectonic uplift of Mt. Bogda, Xinjiang, northwest China

Shen, Chuanbo; Mei, Lianfu; Lei, Peng; Zhang, Shiwan; Lin, Liu; Tang, Juxing

doi:10.1007/bf02872174

Cited by 20 publications

(11 citation statements)

References 13 publications

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“…Late Cenozoic cooling has also been reported from areas within the Chinese Tianshan, generally limited to areas near major faults. Several studies have reported Oligocene‐Miocene ages from Bogda Shan (Shen et al, , ), to the immediate east of Urumqi, and a wide range of Cenozoic ages from major faults in the ranges of the Tianshan to the west of the city (Dumitru et al, ; Hendrix et al, ; Jolivet et al, ; Lü et al, ; Wang, Li, et al, ). However, Cenozoic AFT ages were not found in this study, suggesting that in contrast to the ranges farther to the west, Cenozoic exhumation in the easternmost Tianshan was not extensive enough to expose rocks that record Cenozoic cooling.…”

Section: Discussionmentioning

confidence: 99%

“…The easternmost extent of the mountain belt is located within the Xinjiang Uyghur Autonomous Region of China, terminating just short of the Mongolian border (Figure ). A multitude of low‐temperature thermochronological studies utilizing the apatite fission track (AFT) and/or (U‐Th)/He (AHe) systems have attempted to constrain the cooling history of the Tianshan, generally concluding that the onset of modern mountain building occurred at ~25–15 Ma in response to the India‐Eurasia convergence (Bande et al, ; De Grave et al, ; Dumitru et al, ; Glorie & De Grave, ; Glorie et al, ; Hendrix et al, ; Käßner et al, ; Macaulay et al, , ; Shen et al, ; Sobel, Chen, et al, ; Sobel & Dumitru, ; Wang, Li, et al, ). These Oligocene‐Miocene ages were mainly obtained for samples taken in the vicinity of the major fault zones and associated steep topography within the Tianshan in Kyrgyzstan, Tajikistan and western Xinjiang.…”

Section: Introductionmentioning

confidence: 99%

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Differential Exhumation and Crustal Tilting in the Easternmost Tianshan (Xinjiang, China), Revealed by Low‐Temperature Thermochronology

et al. 2017

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The easternmost Tianshan forms the eastern extremity of the modern Central Asian Orogenic Belt and represents a key locality to investigate strain propagation from the Meso‐Cenozoic plate margins to the Eurasian interior. The Tianshan as a whole has been reactivated multiple times throughout the Meso‐Cenozoic, but the extent of these reactivation events is yet to be fully understood. This study applies apatite fission track and apatite (U‐Th‐Sm)/He thermochronology to the mountain ranges of the easternmost Tianshan. Our new results suggest that the area experienced two phases of rapid cooling in the Mesozoic—during the Early to Middle Triassic and the Late Cretaceous. These cooling phases are linked to tectonic events at the distant plate margins such as the Permian to Middle Triassic closure of the Paleoasian Ocean and the Late Jurassic to Early Cretaceous Mongol Okhotsk orogeny. Fault‐controlled differential exhumation and block tilting are recorded in the distribution of apatite fission track ages across the region. Finally, we show through a combination of multiple thermochronometers and the integration of structural analysis that the easternmost Tianshan has experienced insufficient exhumation to constrain the timing of reactivation in response to the Cenozoic collision of India with Eurasia and instead records older, Mesozoic tectonic events.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differential Exhumation and Crustal Tilting in the Easternmost Tianshan (Xinjiang, China), Revealed by Low‐Temperature Thermochronology

et al. 2017

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“…AFT analysis of samples 8-1, 8-2, and 8-9 was performed at the Institute of High Energy Physics of the Chinese Academy of Sciences, Beijing, following the procedures of Yuan et al (2006) and Shen et al (2006). The apatite mounts were etched in 6.6% HNO 3 for 30 s at 25°C.…”

Section: Methodsmentioning

confidence: 99%

Multi-chronometric dating of the Huarong granitoids from the middle Yangtze Craton: Implications for the tectonic evolution of eastern China

Shen

Mei

Min

et al. 2012

Journal of Asian Earth Sciences

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“…For the subset of seven samples, AFTA was conducted at the Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, applying the procedures of Yuan et al (2006) and Shen et al (2006Shen et al ( , 2012, and detailed information on the analytical procedures can be found there. After the separation of apatite using conventional techniques, grains were mounted in epoxy resin on glass slides, ground, and polished to expose grain internal surfaces.…”

Section: Methodsmentioning

confidence: 99%

Thermo‐tectonic history of the Northeast Sichuan Basin, Southwest China, using apatite fission‐track analysis, vitrinite reflectance, and basin modelling: Implications for hydrocarbon prospectivity

et al. 2020

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Analysis of apatite fission‐track and vitrinite reflectance combined with 1‐D basin modelling was used to reconstruct the thermo‐tectonic history of the northeast Sichuan Basin, China. The study indicates that the basin has evolved through multi‐phase tectonic regimes involving a series of subsidence and tectonic uplift phases exerting significant control on the thermal history. Heating and cooling processes were largely related to deep burial and intense exhumation, respectively. Exhumation that extended from 122 to 2.5 Ma has resulted in at least 4 km of sedimentary removal. The rate of exhumation and removal (denudation) was found to have reached 58 and 35 m/Myr, respectively. The results show that the denudation magnitude is significantly higher in the eastern part reaching 5.5 km, compared with 2.2 km in the western part of the study area. The fission‐track ages demonstrate the occurrence of three cooling phases: initial‐gradually increasing (~120–70 Ma), stagnant (70–15 Ma), and rapid (15 Ma to present). This suggests that cooling was associated with different compressive thermo‐structural events that began in the mid‐Lower Cretaceous (~122 Ma) marking the subsidence climax period. With the sedimentary section approximating 8‐km thickness by the time of maximum burial, the modelled average maximum temperature and vitrinite reflectivity coefficient reached roughly 232°C, and 3.5% for the Lower Triassic Feixianguan Formation (T1f1), thus indicating the conditions of dry gas generation. The Meso‐Cenozoic thermo‐structural evolution that postdated the onset of hydrocarbon generation has been critical for the evolution of the petroleum play, including the Feixianguan Formation in the marine carbonates of the Early Triassic and the Xujiahe Formation in the non‐marine sandstones of the Upper Triassic. This resulted in the modification of primary hydrocarbon accumulations, mostly in the lower petroleum play, and development of secondary accumulation in the newly formed structural traps in the upper petroleum play. Therefore, accurate thermo‐tectonic history reconstruction is valuable for understanding the geological history and hydrocarbon prospectivity.

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Fission track evidence for the Mesozoic-Cenozoic tectonic uplift of Mt. Bogda, Xinjiang, northwest China

Cited by 20 publications

References 13 publications

Differential Exhumation and Crustal Tilting in the Easternmost Tianshan (Xinjiang, China), Revealed by Low‐Temperature Thermochronology

Differential Exhumation and Crustal Tilting in the Easternmost Tianshan (Xinjiang, China), Revealed by Low‐Temperature Thermochronology

Multi-chronometric dating of the Huarong granitoids from the middle Yangtze Craton: Implications for the tectonic evolution of eastern China

Thermo‐tectonic history of the Northeast Sichuan Basin, Southwest China, using apatite fission‐track analysis, vitrinite reflectance, and basin modelling: Implications for hydrocarbon prospectivity

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