scholarly journals Petrogenesis and tectonic significance of Early Paleozoic magmatism in the northern margin of the Qilian block, northeastern Tibetan Plateau

Lithosphere ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 365-385 ◽  
Author(s):  
Changfeng Liu ◽  
Chen Wu ◽  
Zhijie Song ◽  
Wencan Liu ◽  
Hongyuan Zhang
Keyword(s):  
Tibetan Plateau ◽  
Early Paleozoic ◽  
Northern Margin ◽  
Northeastern Tibetan Plateau ◽  
Tectonic Significance

scholarly journals Petrogenesis and tectonic significance of the early Paleozoic Delenuoer ophiolite in the Central Qilian Shan, northeastern Tibetan Plateau

2020 ◽  
Vol 11 (6) ◽  
pp. 2017-2029
Author(s):  
Zhen Ma ◽  
Jinrong Wang ◽  
Liangliang Zhang ◽  
Yixin Liu ◽  
Yunyun Gao ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Early Paleozoic ◽  
Northeastern Tibetan Plateau ◽  
Tectonic Significance

Early Paleozoic intrusive rocks from the eastern Qilian orogen, NE Tibetan Plateau: Petrogenesis and tectonic significance

Lithos ◽  
2015 ◽  
Vol 224-225 ◽  
pp. 13-31 ◽  
Author(s):  
He Yang ◽  
Hongfei Zhang ◽  
Biji Luo ◽  
Jie Zhang ◽  
Ziliang Xiong ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Early Paleozoic ◽  
Tectonic Significance ◽  
Intrusive Rocks ◽  
Qilian Orogen ◽  
Ne Tibetan Plateau

scholarly journals Provenance and tectonic significance of the Zhongwunongshan Group from the Zhongwunongshan Structural Belt in China: insights from zircon geochronology

2020 ◽  
Vol 12 (1) ◽  
pp. 25-43
Author(s):  
Yuan Peng ◽  
Yongsheng Zhang ◽  
Eenyuan Xing ◽  
Linlin Wang
Keyword(s):  
Detrital Zircon ◽  
Sedimentary Basin ◽  
Early Paleozoic ◽  
Granitic Gneiss ◽  
Metamorphic Belt ◽  
Early Devonian ◽  
Tectonic Environment ◽  
Tectonic Significance ◽  
North Qaidam ◽  
Back Arc

AbstractThe Zhongwunongshan Structural Belt (ZWSB) locates between the Olongbruk Microblock of North Qaidam and the South Qilian Block in China, and it has important implication for understanding the tectonic significance of North Qaidam. Nowadays, there are few discussion on the Caledonian tectonothermal events of the Zhongwunongshan Structural Belt, and there exist different opinions on provenance and tectonic environment of the Zhongwunongshan Group in the ZWSB and its adjacent North Qaidam. In this study, a comprehensive analysis of the detrital zircon geochronological research was carried out on the Zhongwunongshan Group. The detrital zircon U-Pb dating results showed two major populations. The first was Neoproterozoic (966-725 Ma) with a ∈Hf(t) = −15.9 to 9.5, and the other was late Early Paleozoic (460-434Ma) with a ∈Hf(t) = −9.6 to −3.1. In combination with previous research, the dominated provenances were found to be the Neoproterozoic granitic gneiss of the Yuqia-Shaliuhe HP-UHP metamorphic belt and the late Early Paleozoic granite of the Tanjianshan ophiolite-volcanic arc belt in North Qaidam. The Zhongwunongshan Group was deposited in the back-arc sedimentary basin related to the Caledonian collisional orogeny during Middle Silurian-Early Devonian (434-407.9 Ma).

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