Tectono-stratigraphy of Late Carboniferous to Triassic successions of the Khorat Plateau Basin, Indochina Block, northeastern Thailand: Initiation of the Indosinian Orogeny by collision of the Indochina and South China blocks

Refined Apparent Polar Wander (APW) paths for the North and South China Blocks (ncb and scb) are presented and the collision between the NCB and SCB discussed. We suggest that the amalgamation of the NCB and SCB was completed in the late Triassic-early Jurassic, during the Indosinian Orogeny. This proposed timing is based on an analysis of palaeomagnetic signatures relating to continental collisions, such as the convergence of palaeolatitude, deflections of declination, hairpin-like loops in and superposition of APW paths. Like the Cenozoic India—Eurasia collision, the Mesozoic NCB- SCB collision reactivated ancient faults in eastern China, converting some of them into transcurrent faults, of which the Tan-Lu fault is the most famous.

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Detrital records for Upper Permian-Lower Triassic succession in the Shiwandashan Basin, South China and implication for Permo-Triassic (Indosinian) orogeny

Journal of Asian Earth Sciences ◽

10.1016/j.jseaes.2014.11.007 ◽

2015 ◽

Vol 98 ◽

pp. 152-166 ◽

Cited By ~ 23

Author(s):

Lisha Hu ◽

Peter A. Cawood ◽

Yuansheng Du ◽

Yajun Xu ◽

Wangchun Xu ◽

...

Keyword(s):

South China ◽

Lower Triassic ◽

Upper Permian ◽

Indosinian Orogeny

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Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island

The Journal of Geology ◽

10.1086/501222 ◽

2006 ◽

Vol 114 (3) ◽

pp. 341-353 ◽

Cited By ~ 223

Author(s):

Xian‐Hua Li ◽

Zheng‐Xiang Li ◽

Wu‐Xian Li ◽

Yuejun Wang

Keyword(s):

South China ◽

Hainan Island ◽

Magmatic Arc ◽

Indosinian Orogeny

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Discovery of Middle–Late Devonian and Early Permian magmatic events in East Asia and their implication for the Indosinian orogeny in South China: Insights from the sedimentary record

Geological Society of America Bulletin ◽

10.1130/b35032.1 ◽

2019 ◽

Vol 131 (9-10) ◽

pp. 1519-1536 ◽

Cited By ~ 6

Author(s):

Xinchang Zhang ◽

Yuejun Wang ◽

Ron Harris ◽

Yi Yan ◽

Yi Zheng

Keyword(s):

East Asia ◽

South China ◽

Hainan Island ◽

Source Rocks ◽

Sediment Provenance ◽

Published Data ◽

Late Devonian ◽

Early Permian ◽

Indosinian Orogeny ◽

T Values

Abstract Whether the driver of the Indosinian orogeny in the South China block was related to the evolution of the Paleotethyan Ocean or the Paleo-Pacific Ocean has been a point of much debate. We applied detrital zircon U-Pb dating to Permian–Triassic sedimentary rocks from South China to trace sediment provenance and to further test these models. Our results, combined with other published data from the Pingxiang, Youjiang, Yong’an, and Yongding Basins, show that 400–350 Ma and 300–260 Ma zircon grains are ubiquitous throughout the entirety of southern South China. This indicates regional magmatic events as potential sources. The discovery of Middle–Late Devonian and Early Permian igneous rocks, tuffs, and volcaniclastic rocks in Southeast Asia and Hainan Island implies the presence of two magmatic events (400–350 Ma and 300–260 Ma) within or beyond the southern margin of South China. This information, together with the mostly negative εHf(t) values of 400–350 Ma and 300–260 Ma zircon grains, arc-like geochemical signatures of the possible source rocks, and the regional geology of East Asia, suggests that they originated from sources related to Paleotethyan and even Proto-Tethyan subduction. Thus, Permian–Triassic sedimentation and the Indosinian orogeny in South China were largely controlled by the evolution of the Tethyan Ocean.

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