Pre-cenozoic evolution of the northern Qilian Orogen from zircon geochronology: Framework for early growth of the northern Tibetan Plateau

Li, Bing; Zuza, Andrew V.; Chen, Xuanhua; Wang, Zengzhen; Shao, Zhaogang; Levy, Drew A.; Wu, Chen; Xu, Shenglin; Sun, Yujun

doi:10.1016/j.palaeo.2020.110091

Cited by 32 publications

(23 citation statements)

References 113 publications

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“…The detrital zircon age populations from our Devonian sandstone sample in Longshou Shan (i.e., sample WC 09-17-14 [2a]) constrains that the provenance is similar to Qilian Shan, this suggests that the collision between North China and Kunlun-Qaidam continents was completed in this period (e.g., B. Li et al, 2020a).…”

Section: Early Paleozoic Geology In the Qilian Shan And Longshou Shanmentioning

confidence: 99%

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Punctuated Orogeny During the Assembly of Asia: Tectonostratigraphic Evolution of the North China Craton and the Qilian Shan From the Paleoproterozoic to Early Paleozoic

Zuza

Yin

et al. 2021

Tectonics

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Asian and the Tethyan oceanic domains are separated by the Tarim and North China cratons whose geologic histories are critical for deciphering the interactions of the two orogenic systems to the north and south. A major obstacle for establishing the geologic history of Tarim and North China cratons is that the two tectonic entities are currently bounded by Cenozoic structures along the southern margin of the Tian Shan and the northern margin of the Tibetan plateau (Figure 1). These structures have either reactivated or strongly modified the earlier tectonic configurations of the region (e.g., Yin & Nie, 1996). For example, Cenozoic structures that bound the southern margin of Tarim and North China cratons overprinted Mesozoic extensional basins (X.

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Section: Early Paleozoic Geology In the Qilian Shan And Longshou Shanmentioning

confidence: 99%

“…445-440 Ma (e.g., C. F. Liu et al, 2019;Zuza et al, 2018) (Figure 14e). Alternatively, early Paleozoic plutons in the Longshou Shan may be evidence for bivergent subduction of the Qilian Ocean (e.g., X. H. Chen et al, 2019;B. Li et al, 2020a).…”

Section: Paleoproterozoic-early Paleozoic Tectonic Evolution Of Northern Tibetmentioning

confidence: 99%

Punctuated Orogeny During the Assembly of Asia: Tectonostratigraphic Evolution of the North China Craton and the Qilian Shan From the Paleoproterozoic to Early Paleozoic

Zuza

Yin

et al. 2021

Tectonics

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Section: Introductionmentioning

confidence: 99%

“…However, the characteristics of that pre-Cenozoic landscape are also debated, especially the potential occurrence of a Mesozoic plateau [23][24][25][26][27]. Therefore, while the Qilian Shan represents a unique object to assess and quantify the geodynamic processes that controlled the formation and extent of the Tibetan Plateau, many uncertainties still remain that require further data [2,[28][29][30][31][32]. The numbers in white circles refer to published fluvial detrital zircon analysis studies; (C) schematic geological cross-section of the a-a′ trace in Figure 1B (Modified from [16]); (D) simplified geological map and granite zircon U-Pb sampling locations along the upper reaches of the Hei River.…”

Section: Introductionmentioning

confidence: 99%

“…U-Pb geochronology, applied to basement rocks and associated to structural and petrographic studies has been widely used to constrain the Paleozoic early formation of the North Qilian Shan, a sub-range corresponding to the frontal part of the Qilian Shan. This early evolution proved to be geodynamically complex, implying major exhumation phases driven by crustal growth, accretion, and collision events [32,42,43]. In contrast, the effects of the Cenozoic phase appear more limited, with exhumation being restricted to the upper crust.…”

Section: Introductionmentioning

confidence: 99%

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The Formation of the North Qilian Shan through Time: Clues from Detrital Zircon Fission-Track Data from Modern River Sediments

Jolivet

Liu‐Zeng

et al. 2022

Geosciences

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Understanding the formation of the North Qilian Shan in the NE Tibetan Plateau provides insights into the growth mechanisms of the northern region of the plateau across time. Detrital zircon fission-track (ZFT) analyses of river sediments can provide a comprehensive understanding of the exhumation history during prolonged orogenesis. Here, we applied the detrital thermochronology approach to the Qilian Shan orogenic belt. This work presents the first single-grain detrital ZFT data from river-bed sediments of the upper Hei River catchment in North Qilian Shan. The single ZFT ages are widely distributed between about 1200 Ma and about 40 Ma. These data record the protracted history of the Qilian Shan region from the Neoproterozoic evolution of Rodinia and late Paleozoic amalgamation of Central Asia to the accretion of the Gondwanian blocks during the Meso-Cenozoic era. Strong post-magmatic cooling events occurred in North Qilian Shan at 1200~1000 Ma, corresponding to the assembly of the Rodinia supercontinent. The age population at 800 Ma documents the oceanic spreading in the late Neoproterozoic dismantling of Rodinia. ZFT ages ranging from about 750 Ma to 550 Ma (with age peaks at 723 Ma and 588 Ma) are consistent with the timing of the opening and spreading of the Qilian Ocean. The age peaks at 523 Ma and 450 Ma mark the progressive closure of that ocean ending with the collision of the Qilian block with the Alxa block—North China craton in the Devonian. The Qilian Ocean finally closed in Late Devonian (age peak at 375 Ma). In the late Paleozoic (275 Ma), the subduction of the Paleotethys Ocean led to extensive magmatic activity in the North Qilian Shan. During the Lower Cretaceous (145 Ma), the accretion of the Lhasa block to the south (and potentially the closure of the Mongol-Okhotsk Ocean to the northeast) triggered a renewed tectonic activity in the Qilian Shan. Finally, a poorly defined early Eocene exhumation event (50 Ma) suggests that the NE Tibetan Plateau started to deform nearly synchronously with the onset of the India-Asia collision. This study demonstrates the usefulness of combining modern-river detrital thermo-/geochronological ages and bedrock geochronological ages to understand large-scale orogenic evolution processes.

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Differential deformation mechanism of E–W‐trending Weiningbeishan fold‐thrust belt from central Ningxia, NW China

Zhou,

Chen,

Shao

et al. 2024

Geological Journal

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The Weiningbeishan fold‐thrust belt (WFTB), located in the transitional zone of the Tibetan Plateau, Alxa Block and Ordos Basin, is an ancient intracontinental orogenic belt. In this article, structural analysis is conducted to more finely reveal differential deformation between the Devonian and Carboniferous strata in the WFTB. We found that the E–W‐trending open folds are mainly developed in the Upper Devonian Zhongning Formation (D3z), while the E–W‐trending close and tight folds are mainly developed in the Carboniferous strata. The N–S minimum shortening strain of the bottom boundary of Member 2 of the Upper Devonian Zhongning Formation (D3z2) is 21.1%, whereas the N–S minimum shortening strain of the bottom boundary of Member 2 of the Upper Carboniferous Danliangshan Formation (C2d2) is 64.1%. We propose that the E–W‐trending open folds in the Upper Devonian Zhongning Formation (D3z) and E–W‐trending close and tight folds in the Carboniferous strata were formed under the N–S compression during the Middle–Late Triassic. The Zhangyigou and Laoyagou faults are the main tear faults to accommodate differential displacement on the surface between the Upper Devonian Zhongning Formation (D3z) in the east and Carboniferous strata in the middle, which change into a décollement fault in the deep part of the Dafosigou fold area in the middle to accommodate differential deformation between the deep Upper Devonian Zhongning Formation (D3z) and Carboniferous strata. This study enables us to better understand the Mesozoic intracontinental deformation in response to far‐field plate‐boundary convergence in NW China.

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Pre-cenozoic evolution of the northern Qilian Orogen from zircon geochronology: Framework for early growth of the northern Tibetan Plateau

Cited by 32 publications

References 113 publications

Punctuated Orogeny During the Assembly of Asia: Tectonostratigraphic Evolution of the North China Craton and the Qilian Shan From the Paleoproterozoic to Early Paleozoic

Punctuated Orogeny During the Assembly of Asia: Tectonostratigraphic Evolution of the North China Craton and the Qilian Shan From the Paleoproterozoic to Early Paleozoic

The Formation of the North Qilian Shan through Time: Clues from Detrital Zircon Fission-Track Data from Modern River Sediments

Differential deformation mechanism of E–W‐trending Weiningbeishan fold‐thrust belt from central Ningxia, NW China

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