Cenozoic tectonic evolution of Qaidam basin and its surrounding regions (part 2): Wedge tectonics in southern Qaidam basin and the Eastern Kunlun Range

Yin, An; Dang, Yu-Qi; Zhang, Min; McRivette, Michael W.; Burgess, W. Paul; Chen, Xuanhua

doi:10.1130/2007.2433(18)

Cited by 122 publications

(239 citation statements)

References 46 publications

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“…To the north, the sharp contact between the Qaidam Basin and the Qimen Tagh Range has been interpreted as evidence for active north-directed thrusting (e.g., Meyer et al, 1998;Jolivet et al, 2003), whereas field examination suggests that this is a steeply north-dipping unconformity between bedrock in the south and north-dipping Cenozoic strata in the north (Yin et al, 2007).…”

Section: Strike-slip Faulting In the Qimen Tagh Rangementioning

confidence: 99%

“…(N 2 1 xy) decreases towards the Arlar Fault and growth strata develop on both sides of the fault. Based on these features, previous studies interpreted the Arlar Fault as a purely reverse fault that accommodated rapid uplift in the Eastern Kunlun Mountains since the Late Oligocene -Early Miocene (Song and Wang, 1993;Yin et al, 2007;Wang et al, 2010). Since it is very difficult to identify strike-slip faults on seismic profiles (Durand-Riard et al, 2012), these studies did not take into consideration…”

Section: Seismic Section C-c'mentioning

confidence: 99%

“…Yet, the observed thickness pattern of the Cenozoic strata across the Qaidam Basin (Yin et al, 2008) seems poorly compatible with a major south-dipping range-bounding thrust along the northern margin of the Eastern Kunlun Mountains. All the individual Cenozoic units in the basin consistently thicken from the margins towards the center of the basin (Bally, 1986;Huang et al, 1996;Sobel et al, 2003;Wang et al, 2006;Yin et al, 2007Yin et al, , 2008. This isopach pattern contradicts the classic tectonically subsiding foreland-basin model that requires the maximum sediment thickness to be localized near the bounding thrust system (Jordan, 1981).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…Burchfiel et al, 1989;Meyer et al, 1998) or southward thrusting system (e.g. Yin et al, 2007;Wang et al, 2011). …”

Section: Accepted M Manuscriptmentioning

confidence: 99%

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Northward growth of the Qimen Tagh Range: A new model accounting for the Late Neogene strike-slip deformation of the SW Qaidam Basin

Cheng

Jolivet

Fu³

et al. 2014

Tectonophysics

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Northward growth of the Qimen Tagh Range: A new model accounting for the Late Neogene strike-slip deformation of the SW Qaidam Basin. Tectonophysics, Elsevier, 2014, 632, pp.32-47. 10.1016/j.tecto.2014 A C C E P T E D M A N U S C R I P T initially a left-lateral strike-slip fault system rather than a thrusting system. Growth strata indicate an Early Miocene onset age for this strike-slip deformation. However, earthquakes focal mechanisms show that the present-day tectonic pattern of this fault system is dominated by NE-SW transpression. As for the Qimen Tagh fault system, numerous linear geomorphic features and fault scarps indicate that it was again a strike-slip fault system. Deformed sediments within the Adatan Valley prove that strike-slip motion prevailed during the Pleistocene, yet the present day deformation is marked by NE-SW transpression. Collectively, the Kunbei and Qimen Tagh fault systems were initially left-lateral strike-slip fault systems that formed during Early Miocene and Pleistocene respectively. Colligating with these southward younging left-lateral strike-slip faulting ages and the fact that these convex-northward structures converge to the center segment of active Kunlun Fault in the east, we thus considered the Kunbei and Qimen Tagh fault systems as former western segments of the Kunlun Fault once located further south in the present-day location of that fault. These faults gradually migrated northward since the Early Miocene while their kinematics changed from left-lateral strike-slip motion to NE-SW transpression. ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

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Section: Strike-slip Faulting In the Qimen Tagh Rangementioning

confidence: 99%

Section: Seismic Section C-c'mentioning

confidence: 99%

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…Burchfiel et al, 1989;Meyer et al, 1998) or southward thrusting system (e.g. Yin et al, 2007;Wang et al, 2011). …”

Section: Accepted M Manuscriptmentioning

confidence: 99%

See 2 more Smart Citations

Northward growth of the Qimen Tagh Range: A new model accounting for the Late Neogene strike-slip deformation of the SW Qaidam Basin

Cheng

Jolivet

Fu³

et al. 2014

Tectonophysics

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“…However, early Cenozoic activation of some of the northernmost structures of the Tibetan plateau (Yin et al, 2002(Yin et al, , 2007(Yin et al, , 2008a(Yin et al, , 2008bHorton et al, 2004;Dupont-Nivet et al, 2004) shows that much Cenozoic sedimentation took place in a hinterland setting, rather than foreland basin. Tibetan hinterland basins show large variations in total thickness and accumulation rate.…”

Section: Basin Overviewmentioning

confidence: 99%

Cenozoic Evolution of Hinterland Basins in the Andes and Tibet

Horton

2011

Tectonics of Sedimentary Basins

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Sedimentary basins have been generated in hinterland regions of the Andean and Himalayan-Tibetan orogens during Cenozoic plate convergence. These hinterland basins record nonmarine sediment accumulation (commonly in high-elevation, lowrelief, internally drained, arid/semiarid settings) during protracted deformation and surface uplift of continental crust. In South America, Andean hinterland basins are produced between the western magmatic arc and craton-directed fold-thrust belt to the east. In the India-Asia collision zone, hinterland basins develop as elements of the growing Tibetan plateau between the Himalayan thrust belt and Asian plate interior to the north. Hinterland sedimentary basins in the Andes and Tibet are distinguished from foreland basins adjacent to their respective fold-thrust belts by structural position, elevation, and stratigraphic evolution. Sediment accommodation in these hinterland basins is created by flexure, fault-induced subsidence, and topographic ponding, with common examples of remnant foreland basins succeeded by younger hinterland basins.

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Paleomagnetism of Eocene and Miocene sediments from the Qaidam basin: Implication for no integral rotation since the Eocene and a rigid Qaidam block

Guan

et al. 2014

Geochem Geophys Geosyst

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The Qaidam basin is the largest topographic depression inside the Tibetan Plateau and it is a key factor to understanding the Cenozoic evolution of the northern Tibetan Plateau. Paleomagnetic data was obtained from the middle to late Eocene Xiaganchaigou Formation and the early to middle Miocene Xiayoushashan Formation from seven localities. The paleomagnetic results indicate that the Qaidam basin has not undergone obvious basin-scale vertical axis rotation with respect to the Eurasia Plate since the Eocene. Local clockwise rotation took place only at a few special locations along the northern margin of the Qaidam basin. The uniform paleomagnetic results at different localities support that the Qaidam basin is a relatively rigid block. Regional paleomagnetic and geodetic observations also suggest that crust south of the Kunlun fault moves eastward faster than crust north of the Kunlun fault.

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Cenozoic tectonic evolution of Qaidam basin and its surrounding regions (part 2): Wedge tectonics in southern Qaidam basin and the Eastern Kunlun Range

Cited by 122 publications

References 46 publications

Northward growth of the Qimen Tagh Range: A new model accounting for the Late Neogene strike-slip deformation of the SW Qaidam Basin

Northward growth of the Qimen Tagh Range: A new model accounting for the Late Neogene strike-slip deformation of the SW Qaidam Basin

Cenozoic Evolution of Hinterland Basins in the Andes and Tibet

Paleomagnetism of Eocene and Miocene sediments from the Qaidam basin: Implication for no integral rotation since the Eocene and a rigid Qaidam block

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