Global back-arc extension due to trench-parallel mid-ocean ridge subduction

Liu, Yiming; Liu, Liang; Li, Yanchong; Peng, Dingkun; Wu, Zhang; Cao, Zeng; Li, Sanzhong; Du, Qizhen

doi:10.1016/j.epsl.2022.117889

Cited by 19 publications

(2 citation statements)

References 39 publications

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“…Meanwhile an extensional setting dominated on the continental margin (Figure 2f) in the Sikhote-Alin belt (Liu et al, 2020) and Liaodongwan basin (Figure 2e; Cheng et al, 2015;Yang et al, 2021;Zhou et al, 2022) along with the opening of the Bohai Sea (Figure 2e; Zhu & Xu, 2019). Coeval regional compression and extension is compatible with subduction of the MOR, given that subduction of young and hot oceanic lithosphere with high buoyancy induces shortening while the slab-gap allows upwelling of asthenosphere resulting in extension (e.g., Liu et al, 2020;Liu et al, 2022;, upper panel of Figure 3b).…”

Section: -50 Ma (Phase 2): Mid Ocean Ridge (Mor) Subduction and Assoc...mentioning

confidence: 96%

Coupling Between Exhumation and Subduction: A Case Study From the Southern Great Xing'an Range, NE Asia

Wu,

Li,

Dias

et al. 2023

Geophysical Research Letters

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The link between subduction and continental exhumation is explored using high‐resolution thermal histories from southern Great Xing'an Range (GXR), NE Asia and integrated with a regional low‐temperature thermochronology data synthesis from the NE Asian continental margin. The GXR thermal histories are constrained by multiple thermo‐, geochronometers (zircon, titanite, apatite U‐Pb, zircon, apatite (U‐Th)/He and apatite fission track). These data yield a large range in U‐Pb ages (292–119 Ma) with enhanced exhumation mainly during the early Cretaceous (ca. 155–110 Ma) in an extensional regime linked to roll‐back of the Paleo‐Pacific Ocean and consequent lithospheric thinning and delamination. Integrated with Cretaceous‐Cenozoic low‐temperature thermochronological data from the NE Asian continent margin, three regional phases of exhumation are recognized, which can be linked to changes in the geometry and kinematics of the subduction systems of the Paleo‐Pacific and Pacific oceans, demonstrating coupling between the subducting plate and the continental margin at active plate boundaries.

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Section: -50 Ma (Phase 2): Mid Ocean Ridge (Mor) Subduction and Assoc...mentioning

confidence: 96%

Coupling Between Exhumation and Subduction: A Case Study From the Southern Great Xing'an Range, NE Asia

Wu,

Li,

Dias

et al. 2023

Geophysical Research Letters

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“…Several models have been proposed for estimating paleo-positional relationships (e.g., Otofuji et al 1985;Jolivet et al 1995;Yamakita and Otoh 2000). The selected basins record rifting during the early Cenozoic period of interest (Yi et al 2003;Imaoka et al 2011;Gu et al 2017;Song et al 2018;Zhu et al 2020;Liu et al 2022). The hatched area represents the estimated Izanagi-Pacific Slab gap based on P-wave tomographic observations and is recognized at an approximate depth of around 1000 km (Li et al 2008;Wu et al 2022a, b).…”

Section: Introductionmentioning

confidence: 99%

Clockwise rotation of SW Japan and timing of Izanagi–Pacific ridge subduction revealed by arc migration

Yamaoka,

Wallis

2023

Prog Earth Planet Sci

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Igneous rocks associated with the Cretaceous to Paleogene volcanic arc in SW Japan show ages that young from west to east in a direction parallel to the Median Tectonic Line suggesting corresponding translation of a heat source traditionally interpreted in terms of oblique subduction of a spreading ridge. However, recent oceanic plate reconstructions suggest ridge subduction may be younger than the main arc activity. Age compilations of 1227 points of felsic to intermediate Cretaceous and Cenozoic igneous rocks from the Japan arc show arc magmatism that can be separated into an early active period 130–60 Ma (stage 1), a subsequent period of quiescence 60–46 Ma (stage 2), which is followed by a resumption of igneous activity from 46 Ma onward (stage 3). In southwest Japan, the orientations of the magmatic arcs of stages 1 and 3 show and angular discordance of about 20°. The lack of active arc magmatism and the occurrence patterns of adakitic and high-Mg andesitic magmas indicate that ridge subduction occurred during stage 2. The arc age distribution pattern of stage 1 is explained by the slab shallowing related to a younging of the subducting slab as the ridge approaches. Furthermore, the obliquity of the arcs formed at stages 1 and 3 is explained by a 20° clockwise rotation of the inner zone of southwest Japan during the ridge-subduction phase. Oceanic plate reconstructions show counterclockwise rotation in the subduction direction after the ridge subduction phase, and coupling of the subducting oceanic plate with the upper plate would support microplate rotation in the inner zone. The new proposed tectonic reconstructions provide a framework to related Paleogene subduction of an active spreading ridge along the east Asia margin not only to the distribution of granitic bodies but also to rift-related basin formation on the eastern margin of the Eurasian continent and to rotation of crustal blocks indicated by paleomagnetic data of Cretaceous terranes.

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Characteristics of transfer zones under the influence of pre-existing faults and regional stress transformation: Wenchang A subsag, Zhujiang River Mouth Basin, northern South China Sea

Li,

Cao,

Meng

et al. 2024

J. Ocean. Limnol.

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Global back-arc extension due to trench-parallel mid-ocean ridge subduction

Cited by 19 publications

References 39 publications

Coupling Between Exhumation and Subduction: A Case Study From the Southern Great Xing'an Range, NE Asia

Coupling Between Exhumation and Subduction: A Case Study From the Southern Great Xing'an Range, NE Asia

Clockwise rotation of SW Japan and timing of Izanagi–Pacific ridge subduction revealed by arc migration

Characteristics of transfer zones under the influence of pre-existing faults and regional stress transformation: Wenchang A subsag, Zhujiang River Mouth Basin, northern South China Sea

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