First Direct Evidence of Pan-African Orogeny Associated with Gondwana Assembly in the Cathaysia Block of Southern China [PDF]
Scientific Reports, 2017 Metamorphic zircon from a hornblendite in the South China Block (SCB) yield U-Pb age of 533 ± 7 Ma and Hf model ages from 900 to 1200 Ma. Geochemical and isotopic characteristics indicate that primary magma of the hornblendites was probably derived from ...
Longming Li +4 more
doaj +5 more sources
Compression-extension transition of continental crust in a subduction zone: A parametric numerical modeling study with implications on Mesozoic-Cenozoic tectonic evolution of the Cathaysia Block. [PDF]
PLoS ONE, 2017 The Cathaysia Block is located in southeastern part of South China, which situates in the west Pacific subduction zone. It is thought to have undergone a compression-extension transition of the continental crust during Mesozoic-Cenozoic during the ...
Xuran Zuo, Lung Sang Chan, Jian-Feng Gao
doaj +2 more sources
Seismically imaged lithospheric delamination and its controls on the Mesozoic Magmatic Province in South China [PDF]
Nature Communications, 2023 The current lithospheric root of the South China Block has been partly removed, yet what mechanisms modified the lithospheric structure remain highly controversial.
Haijiang Zhang +7 more
doaj +2 more sources
Diversity in early crustal evolution: 4100 Ma zircons in the Cathaysia Block of southern China. [PDF]
Sci Rep, 2014 Zircons are crucial to understanding the first 500 Myr of crustal evolution of Earth. Very few zircons of this age (>4050 Ma) have been found other than from a ~300 km diameter domain of the Yilgarn Craton, Western Australia. Here we report SIMS U-Pb and O isotope ratios and trace element analyses for two ~4100 Ma detrital zircons from a Paleozoic ...
Xing GF +7 more
europepmc +4 more sources
Geophysical Research Letters, 2019 The origin of the Cathaysia block and its position in Columbia supercontinent are still enigmatic. Paleoproterozoic magmatisms developed in the Cathaysia block due to two episodes of continental back‐arc extension range in ages of circa 1.88–1.85 and 1 ...
Yan Xia, Xisheng Xu
doaj +2 more sources
New identification and significance of Early Cretaceous mafic rocks in the interior South China Block [PDF]
Scientific Reports, 2021 Early Cretaceous mafic rocks are first reported in the northern Guangxi region from the western Qin-Hang belt in the interior South China Block. A systematic investigation of zircon U–Pb dating, whole-rock geochemistry, Sm–Nd isotopes and zircon Hf–O ...
Hui-Min Su +5 more
doaj +2 more sources
Earthquake ScienceThe Cathaysia block in Southeast China has undergone complex compression, collision and tectonic evolution processes, which have led to the formation of rich granites and polymetallic ores.
Ao Li +4 more
doaj +2 more sources
Seismic Evidence for a Geosuture between the Yangtze and Cathaysia Blocks, South China. [PDF]
Sci Rep, 2013 AbstractSouth China, composed of the Yangtze and Cathaysia Blocks and the intervening Jiangnan orogenic belt, has been central to the debate on the tectonic evolution of East Asia. Here we investigate the crustal structure and composition of South China from seismic data employing theH-kstacking technique.
He C, Dong S, Santosh M, Chen X.
europepmc +5 more sources
Constraining timing and tectonic implications of Neoproterozoic metamorphic event in the Cathaysia Block, South China [PDF]
Precambrian Research, 2017 Abstract The Cathaysia Block of the South China Craton includes a Proterozoic basement that experienced a prolonged Precambrian crustal evolution but to date lacks evidence of Proterozoic metamorphic ages. At Lichuan and Jianning, in the Wuyi Domain of the eastern Cathaysia Block, Proterozoic rock units include migmatized paragneiss of the Wanyuan ...
Yao, Jinlong +3 more
openaire +5 more sources
Crustal deformation in the Cathaysia Block, South China: insights from receiver function analysis
Frontiers in Earth ScienceThe Cathaysia Block, a pivotal tectonic unit in South China, possesses a complex crustal architecture shaped by multi-phase tectonic evolution. This study integrates harmonic analysis of crustal anisotropy with an advanced H-κ-c stacking method applied ...
Ping Tan +5 more
doaj +2 more sources