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Journal Article

Early Triassic mid-ocean-ridge basalt (MORB)-like diabase swarms in the southeastern segment of the Central Asian Orogenic Belt: A response to lithospheric extension triggered by Paleo-Asian oceanic slab break-off

Yan Jing, Wen-chun Ge, Chen Wang, Hao Yang, Yu Dong, Zheng Ji, Jun-hui Bi, Hong-ying Zhou, De-he Xing
Journal: GSA Bulletin
Published: 12 December 2024
GSA Bulletin (2024)
DOI: https://doi.org/10.1130/B37867.1
... extension-related “hot” environment accompanied by the melting of oceanic slab and the associated melt-mantle wedge interactions in the southeastern segment of the CAOB. It is suggested that the Early Triassic diabase swarms were formed in a slab window, triggered by slab break-off of the Paleo-Asian...
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Subduction history of the Paleo-Asian oceanic slab along the northern margin of the North China Craton: A case study of zircons and cherts from central Jilin Province, NE China

Chen Song, Fuping Pei, Wenliang Xu, Jingyang Wei, Bingqian Ding, Tianjiao Sang, Kai Song, Zhiwei Wang, Hongchen Dong
Journal: GSA Bulletin
Published: 24 April 2024
GSA Bulletin (2024) 136 (11-12): 4761–4774.
DOI: https://doi.org/10.1130/B36704.1
... increased rapidly ( Fig. 8A ), reaching a maximum value of ~58 km. Furthermore, magmatism was widespread during this stage. This may be consistent with progressive, low-angle, southward subduction of the Paleo-Asian oceanic slab. The occurrence of garnet-bearing monzogranite in the southern part of central...
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Paleo-Asian oceanic slab under the North China craton revealed by carbonatites derived from subducted limestones: COMMENT

Xue-Ming Yang
Journal: Geology
Published: 01 May 2017
Geology (2017) 45 (5): e413.
DOI: https://doi.org/10.1130/G39005C.1
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Paleo-Asian Oceanic slab under the North China Craton revealed by carbonatites derived from subducted limestones: REPLY

Chunfei Chen, Yongsheng Liu, Stephen F. Foley, Mihai N. Ducea, Detao He, Zhaochu Hu, Wei Chen, Keqing Zong
Journal: Geology
Published: 01 May 2017
Geology (2017) 45 (5): e414.
DOI: https://doi.org/10.1130/G39077Y.1
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Paleo-Asian oceanic slab under the North China craton revealed by carbonatites derived from subducted limestones

Chunfei Chen, Yongsheng Liu, Stephen F. Foley, Mihai N. Ducea, Detao He, Zhaochu Hu, Wei Chen, Keqing Zong
Journal: Geology
Published: 01 December 2016
Geology (2016) 44 (12): 1039–1042.
DOI: https://doi.org/10.1130/G38365.1
.... However, the possible contribution from the Paleo-Asian oceanic slab to the north is poorly constrained, largely because of the lack of convincing evidence for the existence of this slab under the NCC. We report here carbonatite intruding Neogene alkali basalts in the Hannuoba region, close...
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Schematic illustration of the subduction of the <span class="search-highlight">Paleo</span>-<span class="search-highlight">Asian</span> <span class="search-highlight">Ocean</span> and its e...

Schematic illustration of the subduction of the Paleo-Asian Ocean and its e...

Published: 05 November 2024
was chemically weakened by Paleo-Asian Ocean slab-derived fluids during the subduction; the metasomatic reaction between the subcontinental lithospheric mantle wedge peridotite and the Paleo-Asian Ocean slab-derived fluids would have generated lithologically fertile, geochemically enriched mantle domains. (B
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Illustration of recycling of sedimentary limestone caused by subduction of ...

Illustration of recycling of sedimentary limestone caused by subduction of ...

Published: 01 December 2016
Figure 4. Illustration of recycling of sedimentary limestone caused by subduction of the Paleo-Asian oceanic slab. PAOS—Paleo-Asian oceanic slab; HR—Huairen; ZL— Zhuolu.
Journal Article

How does a soft collision orogen uplift and collapse? Insight from the eastern Central Asian Orogenic Belt

Honghui Wang, Xinghua Ma, Chris J. Hawkesworth, Reimar Seltmann, Yong Lai, Chunli Guo, Di-Cheng Zhu, Simon A. Wilde
Journal: GSA Bulletin
Published: 01 November 2024
GSA Bulletin (2025) 137 (3-4): 1628–1648.
DOI: https://doi.org/10.1130/B37750.1
... to rollback of the subducting Paleo-Asian Oceanic slab. This region underwent a further slight increase in crustal thickness to 61 ± 2 km at ca. 254–237 Ma in response to limited tectonic shortening associated with soft collision orogeny before it thinned to 45 ± 13 km at ca. 236–210 Ma due to lithospheric...
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High-magnesium igneous associations record final-stage geodynamic process of the southeastern segment of the Central Asian Orogenic Belt

Yan Jing, Wen-chun Ge, Hao Yang, Yu Dong, Zheng Ji, Jun-hui Bi, Hong-ying Zhou, De-he Xing
Journal: GSA Bulletin
Published: 16 March 2023
GSA Bulletin (2023) 135 (11-12): 3128–3142.
DOI: https://doi.org/10.1130/B36472.1
... of delaminated mafic lower crust subsequently interacted with mantle materials. These two-stage abnormal Triassic high-Mg rocks archive a hot slab window triggered by the break-off of the Paleo-Asian oceanic slab and lower crustal delamination related to collapse of the southeastern segment of the Central Asian...
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Late Paleozoic Tectonomagmatic Evolution of the Eastern Tianshan, Northwest China: Insights from Geochronology and Geochemistry of Volcanic Rocks from the Dananhu–Lop Nur Area

Xinqi Yu, Xiu Liu, Jun Hu, Wei Li, Zongxiu Wang, Weifeng Xiao
Published: 01 September 2022
The Journal of Geology (2022) 130 (5): 357–380.
DOI: https://doi.org/10.1086/722751
... the intraplate evolution stage. On the basis of other findings regarding the ages of igneous rocks and synthetic analysis, the northward subduction of the Paleo-Asian oceanic slab can preferably explain the relationship between the distinctive tectonic environment and the age variation trend in the study area...
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Cartoons showing the Paleozoic tectonic evolution of the northern accretion...

Cartoons showing the Paleozoic tectonic evolution of the northern accretion...

Published: 01 May 2017
Figure 11. Cartoons showing the Paleozoic tectonic evolution of the northern accretionary zone of the eastern Central Asian orogenic belt (CAOB; modified from Y.L. Li et al., 2014b , 2016 ). (A) Northward intra-oceanic subduction of the Paleo–Asian oceanic slab beneath the South Mongolian
Journal Article

Late Paleozoic slab rollback events in the southeastern part of the Central Asian orogenic belt: Implications for Paleo-Asian Ocean subduction and continental crust growth

Qiang Gao, Mao-Qiang Yan, Jan Marten Huizenga, Lian-Xin Lai, Bin Li, Hong-Hong Zeng, Robert Moritz, Jun-Hao Wei
Journal: GSA Bulletin
Published: 15 October 2024
GSA Bulletin (2025) 137 (3-4): 1355–1378.
DOI: https://doi.org/10.1130/B37429.1
... southward subduction-accretion of the Paleo-Asian Ocean. The first phase corresponded to the transformation of low- to medium-angle slab subduction, while the second phase led to subduction-related extension. Considering the tectonic-magmatic evolution, crustal maturity, and thickness variations in the late...
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How long did the Paleo-Asian Ocean take from initial subduction to slab rollback?: Revelation of early Paleozoic magmatism in the eastern Boshchekul-Chingiz arc

Yi Zhang, Jiafu Chen, Yuqi Liu, Xu Ma, Baofu Han, Yifan Zhang
Journal: GSA Bulletin
Published: 11 September 2024
GSA Bulletin (2025) 137 (1-2): 769–789.
DOI: https://doi.org/10.1130/B37726.1
...) of the Junggar Ocean (a branch of the Paleo-Asian Ocean) since 502 Ma. Then it transformed from a nascent arc to a mature island arc with the advancing migration of magmatism during the Late Ordovician–middle Silurian. Rollback of the Junggar oceanic slab occurred during the middle Silurian–Early Devonian...
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Geochemical evidence for terrigenous sediment recycling in the Late Permian subcontinental lithospheric mantle of the northern North China Craton

Zhigang Wang, Li-Qun Dai, Zi-Fu Zhao, Wei Fang
Journal: GSA Bulletin
Published: 05 November 2024
GSA Bulletin (2025) 137 (3-4): 1670–1686.
DOI: https://doi.org/10.1130/B37739.1
... was chemically weakened by Paleo-Asian Ocean slab-derived fluids during the subduction; the metasomatic reaction between the subcontinental lithospheric mantle wedge peridotite and the Paleo-Asian Ocean slab-derived fluids would have generated lithologically fertile, geochemically enriched mantle domains. (B...
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Illustration showing the tectonic evolution of the eastern Central <span class="search-highlight">Asian</span> Or...

Illustration showing the tectonic evolution of the eastern Central Asian Or...

Published: 17 November 2021
Fig. 11. Illustration showing the tectonic evolution of the eastern Central Asian Orogenic Belt (CAOB). ( a ) Subduction of the paleo-Asian Ocean, ca. 340–270 Ma, formed arc magmas, and ( b ) break-off of the subducted oceanic slab, ca. 250 Ma, with closure of the paleo-Asian Ocean. Melts derived
Journal Article

Terminal subduction processes of the Paleo-Asian Ocean: Insights from podiform chromitites in the Solonker suture zone, southeastern Central Asian Orogenic Belt

Dong Fu, Qunye Qian, Bo Huang
Journal: GSA Bulletin
Published: 24 February 2025
GSA Bulletin (2025)
DOI: https://doi.org/10.1130/B38176.1
... conclude that the Solonker ophiolite and podiform chromitite formed in a suprasubduction zone forearc environment that was likely induced by subduction reinitiation and/or slab rollback of the southern segment of the Paleo-Asian oceanic lithosphere. This geodynamic model provides new insights...
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Two-stage crust-mantle interactions from oceanic subduction to post-collisional extension in the northern margin of the North China Craton: Insights from Paleozoic to Mesozoic magmatism

Ying-Shuai Zhang, Yong-Mei Zhang, Xue-Xiang Gu, Jia-Lin Wang, Bo Yao, Hai-Peng Sui
Journal: GSA Bulletin
Published: 15 November 2023
GSA Bulletin (2024) 136 (7-8): 2767–2788.
DOI: https://doi.org/10.1130/B37209.1
... that the early Carboniferous bimodal intrusive rocks formed in a localized back-arc extensional regime that was probably triggered by slab rollback of the Paleo-Asian Ocean. However, the Late Triassic plutons formed in a post-collisional extensional regime in response to slab breakoff or lithospheric...
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Continental crustal growth in the post-collisional setting: Insights from the Late Triassic high-Mg andesites in the eastern Central Asian Orogenic Belt

Liying Zhang, Feng Huang, Jifeng Xu, Xijun Liu, Xuli Yang, Zhao Zhang, Man Zhang, Yunchuan Zeng, Massimiliano Zattin
Journal: GSA Bulletin
Published: 25 October 2024
GSA Bulletin (2025) 137 (3-4): 1521–1537.
DOI: https://doi.org/10.1130/B37578.1
... wedge. Considering that the final closure of the Paleo-Asian Ocean took place before the Late Triassic, these andesites probably erupted in a post-collisional setting. The formation of these HMAs could be best explained by the upwelling asthenosphere triggered by the break-off of the oceanic slab, which...
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Balkatach hypothesis: A new model for the evolution of the Pacific, Tethyan, and Paleo-Asian oceanic domains

Andrew V. Zuza, An Yin
Journal: Geosphere
Published: 11 September 2017
Geosphere (2017) 13 (5): 1664–1712.
DOI: https://doi.org/10.1130/GES01463.1
... suturing. (5) The closure of the Paleo-Asian Ocean in the early Permian was accompanied by a widespread magmatic flare up, which may have been related to the avalanche of the subducted oceanic slabs of the Paleo-Asian Ocean across the 660 km phase boundary in the mantle. (6) The closure of the Paleo-Tethys...
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Tectonic evolution of the Beishan orogen in central Asia: Subduction, accretion, and continent-continent collision during the closure of the Paleo-Asian Ocean

Jie Li, Chen Wu, Xuanhua Chen, Andrew V. Zuza, Peter J. Haproff, An Yin, Zhaogang Shao
Journal: GSA Bulletin
Published: 06 July 2022
GSA Bulletin (2023) 135 (3-4): 819–851.
DOI: https://doi.org/10.1130/B36451.1
... by collision between the North and South Beishan microcontinental blocks, (3) northward slab rollback of the south-dipping subducting Paleo-Asian oceanic plate at ca. 450–440 Ma along the northern margin of the North Beishan block that led to the formation of a northward-younging extensional continental arc...
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