TY - JOUR
T1 - Reconstructing South China in the Mesoproterozoic and its role in the Nuna and Rodinia supercontinents
AU - Liu, Huichuan
AU - Zi, Jian Wei
AU - Cawood, Peter A.
AU - Cui, Xiang
AU - Zhang, Liming
PY - 2020/2
Y1 - 2020/2
N2 - South China, consisting of the Yangtze and Cathaysia blocks (including Hainan Island), is characterized by episodic magmatism and lithospheric-scale tectonism during 1.7–1.0 Ga, and is important in the Nuna and Rodinia reconstruction. Three newly identified Mesoproterozoic magmatic intervals at 1.76–1.60 Ga, 1.53–1.37 Ga, and 1.25–1.05 Ga, were accompanied by three mineralization events at 1.65 Ga, 1.45 Ga, and 1.05 Ga. These events are also recorded by detrital zircon from ca. 1.05 Ga equivalent sedimentary sequences in both western Yangtze and central Hainan Island. These findings indicate a common Proterozoic tectonic history shared by central Hainan and Yangtze, contradicting models invoking Grenvillian-aged tectonism in South China. The Yangtze Block occupied an intracratonic position (between Laurentia and Australia) in Nuna, before it drifted away and docked to Western Australia and northern India in the reconfigured Rodinia. The Cathaysia was located close to northern India during the Proterozoic.
AB - South China, consisting of the Yangtze and Cathaysia blocks (including Hainan Island), is characterized by episodic magmatism and lithospheric-scale tectonism during 1.7–1.0 Ga, and is important in the Nuna and Rodinia reconstruction. Three newly identified Mesoproterozoic magmatic intervals at 1.76–1.60 Ga, 1.53–1.37 Ga, and 1.25–1.05 Ga, were accompanied by three mineralization events at 1.65 Ga, 1.45 Ga, and 1.05 Ga. These events are also recorded by detrital zircon from ca. 1.05 Ga equivalent sedimentary sequences in both western Yangtze and central Hainan Island. These findings indicate a common Proterozoic tectonic history shared by central Hainan and Yangtze, contradicting models invoking Grenvillian-aged tectonism in South China. The Yangtze Block occupied an intracratonic position (between Laurentia and Australia) in Nuna, before it drifted away and docked to Western Australia and northern India in the reconfigured Rodinia. The Cathaysia was located close to northern India during the Proterozoic.
KW - Grenvillian orogeny
KW - Hainan
KW - Mesoproterozoic
KW - South China
KW - Supercontinent
UR - http://www.scopus.com/inward/record.url?scp=85076142952&partnerID=8YFLogxK
U2 - 10.1016/j.precamres.2019.105558
DO - 10.1016/j.precamres.2019.105558
M3 - Article
AN - SCOPUS:85076142952
VL - 337
JO - Precambrian Research
JF - Precambrian Research
SN - 0301-9268
M1 - 105558
ER -