The first identified oceanic core complex in the Bangong–Nujiang suture zone, central Tibet: New insights into the early Mesozoic tectonic evolution of the Meso-Tethys Ocean

Zhang, Bo‐Chuan; Fan, Jian‐Jun; Luo, An‐Bo; Zeng, Xiaoyang

doi:10.1016/j.jseaes.2022.105248

Cited by 6 publications

(3 citation statements)

References 107 publications

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“…Recent studies have also identified Jurassic (191–159 Ma; Table S4 in Supporting Information ) Neo‐Tethyan ophiolites formed at (ultra)slow‐spreading ocean basins, which are mainly located at the Bangong–Nujiang and Shiquanhe–Yunzhug–Namco sutures in central Tibet (Figure 8; e.g., X. N. Li et al., 2023; Tang et al., 2021; B. C. Zhang et al., 2022; W. Q. Zhang, Liu, Liu, Zhang, et al., 2022), although some researchers defined these ophiolites as belonging to the Meso‐Tethyan orogen (e.g., Metcalfe, 2006; Zhu et al., 2013). These ophiolites are characterized by the occurrence of diabase dikes in the mantle and lower crust (X. N. Li et al., 2023; Tang et al., 2021; W. Q. Zhang, Liu, Liu, Zhang, et al., 2022), ophicalcites containing fault‐breccias of mantle peridotites (B. C. Zhang et al., 2022), and extrusive lavas directly overlying serpentinized mantle peridotites (Tang et al., 2021). Notably, fossil oceanic core complexes have also been identified in these ophiolites (e.g., B. C. Zhang et al., 2022; W. Q. Zhang, Liu, Liu, Zhang, et al., 2022).…”

Section: Discussionmentioning

confidence: 99%

“…These ophiolites are characterized by the occurrence of diabase dikes in the mantle and lower crust (X. N. Li et al., 2023; Tang et al., 2021; W. Q. Zhang, Liu, Liu, Zhang, et al., 2022), ophicalcites containing fault‐breccias of mantle peridotites (B. C. Zhang et al., 2022), and extrusive lavas directly overlying serpentinized mantle peridotites (Tang et al., 2021). Notably, fossil oceanic core complexes have also been identified in these ophiolites (e.g., B. C. Zhang et al., 2022; W. Q. Zhang, Liu, Liu, Zhang, et al., 2022). The above geological features thus are consistent with those of the Early–Middle Jurassic ophiolites in the western Neo‐Tethys (the Alps, Balkan, and northern Turkey), collectively confirming slow‐ to ultraslow‐spreading oceanic lithospheres are pervasively preserved in the Jurassic Neo‐Tethyan ophiolites (∼190–155 Ma, Figure 1b).…”

Section: Discussionmentioning

confidence: 99%

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Detachment Fault‐Hosted Subduction Re‐Initiation of the (Ultra)Slow‐Spreading Western Neo‐Tethys in the Jurassic

Liu,

et al. 2024

Geochem Geophys Geosyst

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Subduction initiation in oceans is key to understanding regional and global plate tectonics and ocean basin dynamics; however, its genetic mechanism is still enigmatic. The most famous model that predicts intraoceanic subduction initiation along transform faults or fracture zones (i.e., the Subduction Initiation Rule) has been widely used to explain arc‐like geochemical signatures within the Neo‐Tethyan ophiolites, but fails to account for the speculation and/or calculation of a sub‐parallel relationship between the Jurassic subduction zones and paleo ridges of the western Neo‐Tethys. Here, we propose a ridge‐parallel detachment fault‐hosted subduction re‐initiation model for the Jurassic western Neo‐Tethys. Based on field geological and geochemical evidence, we show that the Refahiye ophiolite in the İzmir–Ankara–Erzincan suture of northern Turkey has diagnostic characteristics indicative of (ultra)slow seafloor spreading. An (ultra)slow‐spreading nature also characterizes many Neo‐Tethyan ophiolites from the Alps to Southeast Asia, either at mid‐ocean ridges or in suprasubduction zones. Due to its extremely weak nature, detachment faults were probably a key candidate for the Jurassic intraoceanic subduction re‐initiation of the western Neo‐Tethys in response to far‐field compression after its long‐lived northward subduction. This model is applicable to both the Jurassic and Early Cretaceous ophiolites, but is questionable for the Late Cretaceous ophiolites. Its utility deponds on the kinematics of ancient plate boundaries and compositions of ophiolites. The detachment fault‐hosted subduction re‐initiation model can explain the arc‐like geochemical features of the Jurassic western Neo‐Tethyan ophiolites, but its effect on the structure and component of ophiolites is diverse.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Detachment Fault‐Hosted Subduction Re‐Initiation of the (Ultra)Slow‐Spreading Western Neo‐Tethys in the Jurassic

Liu,

et al. 2024

Geochem Geophys Geosyst

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“…Additionally, the direction of the subduction of the Paleo-Pacific, which is west-northwest (WNW), stands perpendicular to the tectonic stress and deformation direction in the study area [37]. Consequently, the regional tectonic compressions can be likely linked to the northward movement of the Lhasa Plate and the far-field effect of the subduction of the Meso-Tethys Ocean [72][73][74] (Figure 13c).…”

Section: Early Cooling and Late Regional Stabilization In The Mesozoicmentioning

confidence: 98%

The Long-Term Tectonism of the Longshou Shan in the Southwest Alxa Block—Constrained by (U-Th)/He Thermochronometric Data

Feng,

Zheng,

Jia

et al. 2024

Minerals

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The Longshou Shan, located in western China, plays a crucial role in connecting the Tarim Continent with the North China Craton. It provides valuable insights into the Cenozoic intracontinental deformation, the complex dynamics of Eurasian tectonics, and the relationship between the pre-Cenozoic Tethys and Central Asian orogenic systems. Consequently, comprehending the evolution of the Phanerozoic era in this region holds immense significance. Zircon (U-Th)/He (ZHe) dating was conducted on three granite samples (n = 18) collected from the Longshou Shan. The ZHe dates of these granite rocks range from 7.2 to 517.7 Ma, showing a negative correlation with eU values. Furthermore, a limestone sample from the Longshou Shan yielded ZHe (n = 4) ages of 172.0–277.1 Ma and AHe (n = 4) ages of 17–111.9 Ma. The area has undergone complex tectonic processes involving multiple phases of uplift and burial. Using both forward and inverse modeling methods, we aim to establish plausible thermal histories. Our models reveal: (1) Late Paleozoic unroofing; (2) Early Mesozoic cooling and Late Mesozoic regional stabilization; and (3) Cenozoic reheating and subsequent cooling. By investigating the intricate thermal history of the Longshou Shan through multi-method modeling, we compare different approaches and assess the capabilities of single ZHe dating for understanding a thermal history. This research contributes to unraveling the region’s geological complexities and aids in evaluating various modeling methods.

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The Meso-Tethys Ocean: The nature, extension and spatial-temporal evolution

Fan,

Zhang,

Zhou

et al. 2024

Earth-Science Reviews

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The first identified oceanic core complex in the Bangong–Nujiang suture zone, central Tibet: New insights into the early Mesozoic tectonic evolution of the Meso-Tethys Ocean

Cited by 6 publications

References 107 publications

Detachment Fault‐Hosted Subduction Re‐Initiation of the (Ultra)Slow‐Spreading Western Neo‐Tethys in the Jurassic

Detachment Fault‐Hosted Subduction Re‐Initiation of the (Ultra)Slow‐Spreading Western Neo‐Tethys in the Jurassic

The Long-Term Tectonism of the Longshou Shan in the Southwest Alxa Block—Constrained by (U-Th)/He Thermochronometric Data

The Meso-Tethys Ocean: The nature, extension and spatial-temporal evolution

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