Results 131 to 140 of about 206 (165)

The building of south China: collision of Yangzi and Cathaysia blocks, problems and tentative answers

Journal of Southeast Asian Earth Sciences, 1996
Abstract This paper aims to give answers to the questions of timing, tectonic style and geodynamic interpretation of south China geologic development. In the middle Jiangnan segment, Yangzi plate and Cathaysia got clearly welded during a Late Proterozoic orogeny of collisional type, marked by HP/LT metamorphism, ophiolite melange obduction, thrusting
Jacques Charvet, Liangshu Shu, Yangshen Shi, Lingzhi Guo, Michel Faure   +4 more
openaire   +1 more source

Subduction-driven heterogeneity of the lithospheric mantle beneath the Cathaysia block, South China

Journal of Asian Earth Sciences, 2019
Abstract To evaluate the modification of the lithospheric mantle by the Paleo-Pacific Ocean subduction beneath the Cathaysia block, we report major and trace elements, and Li isotopes of olivine from Niutoushan, Mingxi, Xilong and Jiande peridotite xenoliths in South China. Spoon-shaped, convex-upward and highly LREE-enriched chondrite-normalized REE
Yan Xiao, Hong-Fu Zhang, Ben-Xun Su, Zi Liang, Bin Zhu, Patrick Asamoah Sakyi   +5 more
openaire   +1 more source

Amalgamation between the Yangtze and Cathaysia blocks in South China: Evidence from the ophiolite geochemistry

Precambrian Research, 2020
Abstract Neoproterozoic ophiolites in the southeastern margin of the Yangtze Block record tectonic evolution of South China. The ∼1.0 Ga Xiwan ophiolite and the ca. 830 Ma Fuchuan ophiolite indicate a long-term assembly of the Yangtze and Cathaysia blocks during the Neoproterozoic time.
Qi-Wei Li, Jun-Hong Zhao
openaire   +1 more source

Turbidite record of a middle Neoproterozoic active continental margin in the West Cathaysia terrane, South China: Implications for the relationships between the Yangtze and Cathaysia blocks and their positions in Rodinia

Precambrian Research, 2020
Abstract South China is the largest block of Rodinia in southeastern Asia. It consists of the Yangtze and Cathaysia blocks, separated by the Jiangshan-Shaoxing-Pingxiang Fault. Most studies suggest that the two blocks were amalgamated in the early Neoproterozoic, and the middle Neoproterozoic vocano-sedimentary sequences on both blocks were deposited
Lijun Wang, Kexin Zhang, Shoufa Lin, Weihong He, Xiaohu Kou, Xiaohua Zhou   +5 more
openaire   +1 more source

Yangtze Craton, Cathaysia and the South China Block

2012
The Yangzte Craton and Cathaysia were amalgamated, along a northeast-southwest trending fold belt or tectonic zone (Jiangshan-Shaoxing suture; Jiangnan orogen), following north-directed subduction between the Mesoproterozoic and Early Palaeozoic. Together they form the South China Block, separated from the North China Craton by the Qinling-Dabie ...
openaire   +1 more source

Petrogenesis and geodynamic implications of the Gejiu igneous complex in the western Cathaysia block, South China

Lithos, 2013
Abstract The Gejiu tin district in western Cathaysia block comprises a series of igneous rocks including equigranular and porphyritic granites, gabbro and nepheline syenite. Systematic SHRIMP or LA-ICP-MS zircon U–Pb analyses of 15 representative samples from various phases of the Gejiu complex yielded Late Cretaceous ages of 78–85 Ma. Based on their
Cheng, Yanbo, Mao, Jingwen, Spandler, Carl   +2 more
openaire   +2 more sources

Yangtze and Cathaysia blocks of South China: Their separate positions in Gondwana until early Paleozoic juxtaposition

Geology, 2023
The position of South China in Gondwana remains controversial. In all previous models, the Yangtze and Cathaysia blocks, the two major components of South China, were amalgamated by the Tonian, and South China was considered to be a single coherent block in Gondwana.
Lijun Wang, Shoufa Lin, Wenjiao Xiao
openaire   +1 more source

Lithospheric structure in the Cathaysia block (South China) and its implication for the Late Mesozoic magmatism

Physics of the Earth and Planetary Interiors, 2019
Abstract Mesozoic granitoids are widely distributed in South China, but the mechanism for generating the felsic magmas is still in debate. To understand the possible origin of the granitoids, we use joint inversion methods and forward modelling of receiver functions to reveal the lithospheric structure in the Cathaysia block.
Yangfan Deng, Jiangtao Li, Touping Peng, Qiang Ma, Xiaodong Song, Xinlei Sun, Yusong Shen, Weiming Fan   +7 more
openaire   +1 more source

Remnants of the Amalgamation of the East and West Cathaysia Blocks Revealed by a Short-period Dense Seismic Array

2022
To better constrain the amalgamation of the East and West Cathaysia blocks, we deployed a short-period dense seismic array oriented nearly north-south in the southwestern Cathaysia block. According to the 997 teleseismic receiver functions recorded by 527 node geophones, we find that the Mohorovicic discontinuity (Moho) is slightly uplifted towards the
He Huang, Xuzhang Shen, Jian Xu, Rui Gao, Wentian Wang, Qiming Zhou, Qiangqiang Huang   +6 more
openaire   +1 more source

Discovery of a Hadean xenocrystic zircon in the Cathaysia Block

Science Bulletin, 2022
Lu, Youyue, Cao, Jingya, Fu, Jianming, Liu, Lei, Wu, Qianhong, Yang, Xiaoyong, Yang, Shengxiong, Cheng, Shunbo, Qiu, Xiaofei, He, Ding   +9 more
openaire   +3 more sources