Late Paleozoic-Early Mesozoic tectonic evolution of the Paleo-Asian Ocean: geochronological and geochemical evidence from granitoids in the northern margin of Alxa, Western China

2017 ◽  
Vol 12 (1) ◽  
pp. 191-214
Author(s):  
Xin Sha ◽  
Jinrong Wang ◽  
Wanfeng Chen ◽  
Zheng Liu ◽  
Xinwei Zhai ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Western China ◽  
Late Paleozoic ◽  
Northern Margin ◽  
Geochemical Evidence ◽  
Early Mesozoic

A synthesis of late Paleozoic and early Mesozoic sedimentary provenances and constraints on the tectonic evolution of the northern North China Craton

2019 ◽  
Vol 185 ◽  
pp. 104029 ◽  
Author(s):  
Rui Zhou ◽  
Dongna Liu ◽  
Anchao Zhou ◽  
Yu Zou ◽  
Jinqiang Xie
Keyword(s):  
North China Craton ◽  
Tectonic Evolution ◽  
North China ◽  
Late Paleozoic ◽  
Early Mesozoic

Zircon U–Pb geochronology and petrogenesis of the Late Paleozoic–Early Mesozoic intrusive rocks in the eastern segment of the northern margin of the North China Block

Lithos ◽  
2013 ◽  
Vol 170-171 ◽  
pp. 191-207 ◽  
Author(s):  
Hua-Hua Cao ◽  
Wen-Liang Xu ◽  
Fu-Ping Pei ◽  
Zhi-Wei Wang ◽  
Feng Wang ◽  
...  
Keyword(s):  
North China ◽  
Late Paleozoic ◽  
North China Block ◽  
Northern Margin ◽  
The North ◽  
Early Mesozoic ◽  
Intrusive Rocks ◽  
Eastern Segment

Late Paleozoic-Early Mesozoic tectonic evolution in the east margin of the Jiamusi massif, eastern northeastern China

2015 ◽  
Vol 9 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Xing Zhou Zhang ◽  
Ye Guo ◽  
Jian Bo Zhou ◽  
Zhen Zeng ◽  
Jian Bin Pu ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Northeastern China ◽  
Late Paleozoic ◽  
Early Mesozoic

Late Paleozoic- Early Mesozoic tectonics of Hainan Island: Key to understanding Paleotethyan geology

2020 ◽  
Author(s):  
Huiying He ◽  
Peter Cawood ◽  
Yuejun Wang
Keyword(s):  
South China ◽  
Tectonic Evolution ◽  
Hainan Island ◽  
Igneous Rocks ◽  
Late Paleozoic ◽  
Calc Alkaline ◽  
Early Mesozoic ◽  
History Of ◽  
Back Arc ◽  
T Values

<p>In Southeast Asia, establishing the origin and associated tectonic setting of Late Paleozoic-Early Mesozoic igneous rocks is complicated by structural overprinting and the complex tectonic evolution of the Paleotethyan regime. Hainan Island, located at the south-eastern margin of the Paleotethys, and lacking significant tectonic overprints is a key to understand amalgamation history of the Indochina and South China blocks and to constraining the tectonic evolution of Paleotethys ocean in southeast Asia.</p><p>The Late Paleozoic-Early Mesozoic record of igneous rocks on Hainan Island includes the following. 1) ca. 350 Ma island arc andesites and ca. 330 Ma metabasites, the latter with both MORB- and arc-like geochemical affinities, positive ε<sub>Nd</sub>(t) values of +5.86 – +9.85 and rare inherited zircons with a zircon age of 1400 Ma inferred to be derived from a MORB source with the input of a slab-derived component. Together with the ~350 Ma island arc andesites, the Carboniferous tectonic environment is supposed to be a continental back-arc basin setting. 2) Late Permian gneiss granitoids (272-252 Ma) characterized by a gneissic foliation and calc-alkaline I-type geochemical affinities with negative Nb-Ta and Ti anomalies, related to metasomatized mantle wedge modified by the sediment-derived component in a continental arc setting. 3) ca. 257 Ma arc-like andesites, which further validate a subduction-related setting. 4) Peraluminious Early-Middle Triassic massive granitoids (251–243 Ma) with slightly high A/CNK ratios, δ<sup>18</sup>O values (up to 11.75 ‰) and Sr/Y ratios, inferred to have formed in a compressive regime from a mixed source of greywacke and metabasite. 5) Middle-Late Triassic (242–225 Ma) high-K calc-alkaline granitoids with high zircon temperatures (842–867°C) and geochemical signatures of A-type granites. They show slightly low whole-rock ε<sub>Nd</sub>(t) and zircon ε<sub>Hf</sub>(t) values, suggestive of the derivation from a metabasite–greywacke source in an extensional setting. 6) ca. 240 Ma gabbro-dolerites showing enrichment in LILEs, depletion in HFSEs, negative ε<sub>Nd</sub> (t)-ε<sub>Hf</sub> (t) values (−8.45 to −1.05 and −5.9 to −2.7, respectively) and crustal-like δ<sup>18</sup>O values (7.26–8.70‰), it is implied that the Hainan Island entered into post-collisional environment in response to the asthenosphere upwelling shortly after the closure of back-arc basin.</p><p>Thus, Hainan Island provides a record of Carboniferous back-arc basin opening, followed by an extended Permian–Triassic history of subduction-related consumption leading to orogenic assembly and extensional collapse between the South China and Indochina blocks. Such a tempo-spatial pattern is consistent with that along the Song Ma–Ailaoshan suture zone rather than the magmatic history of eastern South China and indicates that the Paleotethys extended west to at least Hainan Island in the Late Paleozoic-Early Mesozoic.</p>

Late Paleozoic tectonic evolution of the central Great Xing'an Range, northeast China: geochronological and geochemical evidence from igneous rocks

2017 ◽  
Vol 53 (1) ◽  
pp. 282-303 ◽  
Author(s):  
Ying Zhang ◽  
Fu-Ping Pei ◽  
Zhi-Wei Wang ◽  
Wen-Liang Xu ◽  
Yu Li ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Northeast China ◽  
Igneous Rocks ◽  
Late Paleozoic ◽  
Geochemical Evidence ◽  
Great Xing’An Range

Late Paleozoic to Early Mesozoic tectonic evolution of northeast Tibet: Evidence from the Triassic composite western Jinsha-Garzê-Litang suture

Tectonics ◽  
2012 ◽  
Vol 31 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
T.-N. Yang ◽  
Z.-Q. Hou ◽  
Y. Wang ◽  
H.-R. Zhang ◽  
Z.-L. Wang
Keyword(s):  
Tectonic Evolution ◽  
Late Paleozoic ◽  
Early Mesozoic

scholarly journals Late Paleozoic–Early Mesozoic granitoids in the Khangay-Khentey basin, Central Mongolia: Implication for the tectonic evolution of the Mongol-Okhotsk Ocean margin

Lithos ◽  
2021 ◽  
pp. 106455
Author(s):  
Ariuntsetseg Ganbat ◽  
Tatsuki Tsujimori ◽  
Laicheng Miao ◽  
Inna Safonova ◽  
Daniel Pastor-Galán ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Late Paleozoic ◽  
Central Mongolia ◽  
Early Mesozoic ◽  
Mesozoic Granitoids
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