A new vision of the intracontinental evolution of the eastern Kunlun Mountains, Northern Qinghai-Tibet plateau, China

Yuan, Wanming; Zhang, X.-T.; Dong, Jibao; Tang, Yuangui; Yu, Feng; Wang, S.-C.

doi:10.1016/s1350-4487(03)00151-3

Cited by 40 publications

(7 citation statements)

References 7 publications

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“…Available chronologic evidence indicates that the onset of Cenozoic deformation in the Eastern Kunlun region occurred in the late Oligocene to early Miocene at 30–20 Ma, possibly related to initiation of slip on the Kunlun fault (Liu et al, ; Mock et al, ; F. Wang,Lo, et al, ; G. C. Wang, Wang, et al, ; Wang et al, ). Apatite fission‐track studies indicate that the Eastern Kunlun region experienced rapid and widespread cooling at ~20–10 Ma (e.g., X. H. Chen, McRivette, et al, ; Duvall et al, ; He et al, ; Jolivet et al, ; Liu et al, ; McRivette et al, ; Yuan et al, , ; F. Wang, Lo, et al, ; G. C. Wang, Wang, et al, ; Wu et al, ). Earlier circa 40‐ to 35‐Ma exhumation of the Eastern Kunlun Range has also been proposed (e.g., Clark et al, ; Wang et al, ).…”

Section: Phanerozoic Deformation History Of the Kunlun‐qaidam Terranementioning

confidence: 99%

Tectonics of the Eastern Kunlun Range: Cenozoic Reactivation of a Paleozoic‐Early Mesozoic Orogen

Zuza

Chen

et al. 2019

Tectonics

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The Eastern Kunlun Range in north Tibet, located along the northern margin of the eastern Tethyan orogenic system, records evidence for continental break‐up and ocean development in the Neoproterozoic, Paleozoic‐early Mesozoic subduction and continental collision, Mesozoic intracontinental extension, and Cenozoic contractional deformation. The Kunlun region is marked by active left‐lateral strike‐slip deformation of Kunlun fault system, one of the major intracontinental strike‐slip faults in Tibet that developed in response India‐Asia. To better constrain the tectonic evolution of the Eastern Kunlun Range and the closure of the various Kunlun oceans, we conducted detailed investigation integrating new geologic mapping, geochronology, and whole‐rock geochemistry with a synthesis of existing datasets across north Tibet. The Eastern Kunlun Range experienced three major deformation events in the Neoproterozoic, early Paleozoic, and Late Paleozoic‐early Mesozoic, which were associated with collision of the Proto‐, Paleo‐, and Neo‐Kunlun arcs, respectively. Our new detrital zircon analyses from Mesoproterozoic‐Cenozoic strata constrain stratigraphic age and sediment provenance and highlight the importance of three periods of arc activity. Our stratigraphic synthesis, including new field observations, provides new insights into connections between sediment dispersal and changes in tectonism and paleogeography. Miocene‐to‐present strike‐slip activity on the Kunlun fault and the associated strain pattern can be explained by clockwise rotation of the Kunlun fault and its wall rock as a bookshelf‐fault system, which has been proposed for northern Tibet as a result of distributed north‐south right‐lateral shear. The development of this fault system was facilitated by the presence of a Triassic suture that provided a preexisting weakness.

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Section: Phanerozoic Deformation History Of the Kunlun‐qaidam Terranementioning

confidence: 99%

Tectonics of the Eastern Kunlun Range: Cenozoic Reactivation of a Paleozoic‐Early Mesozoic Orogen

Zuza

Chen

et al. 2019

Tectonics

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“…This is an active epicontinental belt in geological history. The Middle Kunlun Fault Zone (MKFZ) and the South-Kunlun Fault Zone (SKFZ) are paleosutures, dipping to the north and stretching more than 1000 km in the EWW extension (Chen et al, 1999;Yuan et al, 2003). The EKM can be subdivided into three blocks: the NorthKunlun Block (NKB), Middle-Kunlun Block (MKB) and South-Kunlun Block (SKB), separated by large deep faults.…”

Section: Boron and Lithium Sources Of The Rivermentioning

confidence: 99%

Geothermal constraints on enrichment of boron and lithium in salt lakes: An example from a river-salt lake system on the northern slope of the eastern Kunlun Mountains, China

Tan

Rao

Zhang

et al. 2012

Journal of Asian Earth Sciences

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“…The two selected sandstone samples for AFT experiments were crushed to screen apatite out, and every single apatite was polished into a thin section. Then, the apatite was etched in nitric acid solution at a 25 C temperature to reveal natural fission tracks (Yuan et al, 2003(Yuan et al, , 2006. In addition, the apatite was induced to generate fission tracks under a neutron irradiation using fission track glass standard, with a conjoined low uranium muscovite as the external detector.…”

Section: Aft Experimentsmentioning

confidence: 99%

Gas migration for terrestrial gas hydrates in the Juhugeng mining area of Muli basin, Qilian Mountains, Northwest China

Wang

Wei

et al. 2020

Energy Exploration & Exploitation

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The Juhugeng mining area in the Qilian Mountains is the only district of China where terrestrial gas hydrate has been found. This paper aimed at studying the gas migration for gas hydrates based on fluid inclusion and apatite fission track experiments with samples being collected in both the hanging wall (Triassic strata, non-hydrocarbon source rocks) and footwall (Jurassic strata, hydrocarbon source rocks) of drilling cores. Fluid inclusions are found in both the hanging wall and footwall, and are characterized by two generations: the first generation includes gaseous and liquid hydrocarbon fluid inclusions with the homogenization temperature of concomitant saline water inclusions being 83–115°C, and the second generation includes gaseous fluid inclusions with the concomitant homogenization temperature of saline water inclusions being 115–149 °C, suggesting two periods of gas migration. Combining with the reconstruction of the burial and thermal histories, the gas migration history can be elaborated as follows: (1) In the Late Paleogene period (>30 Ma), the gas in the footwall migrated to the hanging wall because of the thrusting of Triassic strata, with the temperature being more than 110 ± 10°C (derived from apatite fission track results), corresponding well with the homogenization temperature of the saline water inclusions of the first generation being 115–149 °C; (2) In the Late Neogene to Quaternary (<8 Ma), the study area were impacted by the intensive faults, leading to the second gas migration with a good match between temperature lower than 110 ± 10°C (derived from apatite fission track results) and the homogenization temperature of saline water inclusions in the second generation (83–115 °C), and the geological age of the second gas migration can be restricted from 8 to 1.8 Ma. The permafrost was formed in Quaternary, so the controversial gas hydrate formation pattern can be determined that the gas should be accumulated before the permafrost was formed.

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A new vision of the intracontinental evolution of the eastern Kunlun Mountains, Northern Qinghai-Tibet plateau, China

Cited by 40 publications

References 7 publications

Tectonics of the Eastern Kunlun Range: Cenozoic Reactivation of a Paleozoic‐Early Mesozoic Orogen

Tectonics of the Eastern Kunlun Range: Cenozoic Reactivation of a Paleozoic‐Early Mesozoic Orogen

Geothermal constraints on enrichment of boron and lithium in salt lakes: An example from a river-salt lake system on the northern slope of the eastern Kunlun Mountains, China

Gas migration for terrestrial gas hydrates in the Juhugeng mining area of Muli basin, Qilian Mountains, Northwest China

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