Tectonic evolution, magmatism and metallogeny of the South China Craton — An introduction

2013 ◽  
Vol 74 ◽  
pp. 195-197 ◽  
Author(s):  
Zheng-Xiang Li ◽  
Ru-cheng Wang ◽  
Bor-ming Jahn
Keyword(s):  
South China ◽  
Tectonic Evolution ◽  
The South ◽  
South China Craton

scholarly journals Proterozoic−Phanerozoic tectonic evolution of the Qilian Shan and Eastern Kunlun Range, northern Tibet

2021 ◽  
Author(s):  
Chen Wu ◽  
Jie Li ◽  
Andrew V. Zuza ◽  
Peter J. Haproff ◽  
Xuanhua Chen ◽  
...  
Keyword(s):  
South China ◽  
Tectonic Evolution ◽  
North China ◽  
The South ◽  
The North ◽  
South China Craton ◽  
Late Neoproterozoic ◽  
North And South ◽  
North Qilian ◽  
Early Neoproterozoic

The Proterozoic−Phanerozoic tectonic evolution of the Qilian Shan, Qaidam Basin, and Eastern Kunlun Range was key to the construction of the Asian continent, and understanding the paleogeography of these regions is critical to reconstructing the ancient oceanic domains of central Asia. This issue is particularly important regarding the paleogeography of the North China-Tarim continent and South China craton, which have experienced significant late Neoproterozoic rifting and Phanerozoic deformation. In this study, we integrated new and existing geologic field observations and geochronology across northern Tibet to examine the tectonic evolution of the Qilian-Qaidam-Kunlun continent and its relationships with the North China-Tarim continent to the north and South China craton to the south. Our results show that subduction and subsequent collision between the Tarim-North China, Qilian-Qaidam-Kunlun, and South China continents occurred in the early Neoproterozoic. Late Neoproterozoic rifting opened the North Qilian, South Qilian, and Paleo-Kunlun oceans. Opening of the South Qilian and Paleo-Kunlun oceans followed the trace of an early Neoproterozoic suture. The opening of the Paleo-Kunlun Ocean (ca. 600 Ma) occurred later than the opening of the North and South Qilian oceans (ca. 740−730 Ma). Closure of the North Qilian and South Qilian oceans occurred in the Early Silurian (ca. 440 Ma), whereas the final consumption of the Paleo-Kunlun Ocean occurred in the Devonian (ca. 360 Ma). Northward subduction of the Neo-Kunlun oceanic lithosphere initiated at ca. 270 Ma, followed by slab rollback beginning at ca. 225 Ma evidenced in the South Qilian Shan and at ca. 194 Ma evidenced in the Eastern Kunlun Range. This tectonic evolution is supported by spatial trends in the timing of magmatism and paleo-crustal thickness across the Qilian-Qaidam-Kunlun continent. Lastly, we suggest that two Greater North China and South China continents, located along the southern margin of Laurasia, were separated in the early Neoproterozoic along the future Kunlun-Qinling-Dabie suture.

Zircon U-Pb Chronology and Hf Isotope From the Palawan-Mindoro Block, Philippines: Implication to Provenance and Tectonic Evolution of the South China Sea

Tectonics ◽  
2018 ◽  
Vol 37 (4) ◽  
pp. 1063-1076 ◽  
Author(s):  
Yi Yan ◽  
Deng Yao ◽  
Zhixian Tian ◽  
Chiyue Huang ◽  
Wenhuang Chen ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Tectonic Evolution ◽  
The South China Sea ◽  
Hf Isotope ◽  
The South ◽  
China Sea

Tectonic Evolution of the South China Continental Margin

2001 ◽  
Vol 4 (4) ◽  
pp. 686-687
Author(s):  
Zong-ting Liao ◽  
Chen Yiao-kun ◽  
Ma Ting-ting ◽  
Li Yu-jia
Keyword(s):  
Continental Margin ◽  
South China ◽  
Tectonic Evolution ◽  
The South

scholarly journals Late Permian rifting of the South China Craton caused by the Emeishan mantle plume?

2004 ◽  
Vol 161 (5) ◽  
pp. 773-781 ◽  
Author(s):  
Xie-Yan Song ◽  
Mei-Fu Zhou ◽  
Zhi-Min Cao ◽  
Paul T. Robinson
Keyword(s):  
Mantle Plume ◽  
South China ◽  
Late Permian ◽  
The South ◽  
South China Craton ◽  
Emeishan Mantle Plume

scholarly journals Paleo - position of the South China Craton in the Rodinia Supercontinent: Evidence from the U - Pb age and Hf isotope of detrital zircon from the Nam Co Complex

2021 ◽  
Vol 62 (3) ◽  
pp. 1-12
Author(s):  
Keyword(s):  
South China ◽  
Detrital Zircon ◽  
Age Distribution ◽  
Detrital Zircons ◽  
East Antarctica ◽  
Hf Isotope ◽  
The South ◽  
Nam Co ◽  
Rodinia Supercontinent ◽  
South China Craton

To constrain the paleo - positions of the South China Cratons in the Rodinia Supercontinent during the Neoproterozoic, the in - situ U - Pb dating, and Hf isotope analysis of the detrital zircon from the Nam Co Complex, Song Ma Suture zone, northwestern Vietnam was performed. The U - Pb isotopic dating on detrital zircons shows that the Nam Co Complex demonstrates the major population (>50%) of around ~850 Ma while the minor population is scattered between ~1.2÷3.0 Ga. The Neoproterozoic age spectrum exhibits a large range of the εHf(t) from strongly negative to positive values ( - 17.418022÷ 14.600527), indicating that the source of the magma for this age range has been not only derived from reworking of the Archean basement rocks, but also generated from the juvenile material. The U - Pb age distribution patterns and Hf isotopic data of the detrital zircon in the Nam Co Complex are compatible with those of the South China Craton rather than those of the Indochina Craton. The data also indicate that sedimentary protoliths of the Nam Co Complex were deposited in a convergent - related basin along the southwestern margin of the South China Craton during the Neoproterozoic. Combined with the similarities of the detrital zircon age between western Cathaysia, Indochina, East Antarctica and East India, it is proved that the South China Craton was situated at the margin of the Rodinia Supercontinent and in close proximity to the Indochina, East Antarctica and East India.

Internal versus external locations of the South China Craton within Rodinia during the Cryogenian: Provenance history of the Nanhua Basin

2020 ◽  
Author(s):  
Guangyou Zhu ◽  
Huichuan Liu ◽  
Tingting Zhang ◽  
Weiyan Chen ◽  
Jianwei Xiao ◽  
...  
Keyword(s):  
Mantle Plume ◽  
South China ◽  
Detrital Zircons ◽  
Source Rocks ◽  
Yangtze Block ◽  
The South ◽  
Isotopic Analyses ◽  
South China Craton ◽  
Late Neoproterozoic ◽  
T Values

Contrasting models for internal versus external locations of the South China Craton (SCC) in the supercontinent Rodinia and associated mantle plume or ocean subduction dominated tectonic processes can be resolved by detrital zircon U-Pb dating and Lu-Hf isotopic analyses on the Cryogenian Nanhua Supergroup in the central SCC. Our results show that samples from the lower Liantuo, Tiesi’ao, and Datangpo formations of the Nanhua Supergroup show three age peaks at 2.50 Ga, 2.05 Ga, and 0.85 Ga, and those of the upper Nantuo Formation yield four peaks at 2.50 Ga, 2.05 Ga, 0.85 Ga, and 0.65 Ga. The Archean and Paleoproterozoic (1.80−2.10 Ga) zircons have εHf(t) values of −16.3 to +4.7 and −23.0 to +4.2, and may be sourced from the Kongling and Douling complexes and Paleoproterozoic intrusions in the northern Yangtze Block, respectively. Early Neoproterozoic (0.70−0.96 Ga) zircon grains show variable εHf(t) values of −20.0 to +15.0. In combination with the absence of Mesoproterozoic detrital zircons in the Nanhua Supergroup, huge volumes of Neoproterozoic granitic intrusions in the northern Yangtze Block are the potential sources for the 0.70−0.96 Ga detrital zircons. Only the siltstone of the Nantuo Formation has late Neoproterozoic (0.63−0.69 Ga) detrital zircons with high and positive εHf(t) values (+7.9 to +9.4). Several granitoid intrusions (0.63−0.68 Ga) in the Wudang and Ankang uplift of the South Qinling belt in the northern Yangtze Block provide the late Neoproterozoic detrital zircons of the Nantuo Formation. These provenance analyses of the Nanhua Supergroup indicate an interior source from the SCC, rather than an exterior source from the Laurentia and Australia cratons. The Neoproterozoic rift basins and magmatic rocks in the SCC were produced by secular episodic subductions and back-arc extensions, rather than a Neoproterozoic super-mantle plume. The SCC occupied a peripheral position adjacent to northern India in Rodinia during the Neoproterozoic. These conclusions will promote our understanding of genetic mechanism and distribution prediction of the several Cryogenian−Cambrian black-shale layers and excellent source rocks in the SCC.

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