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Геодинамика и тектонофизика

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ZIRCON U-PB AND HF ISOTOPIC STUDY OF THE KAWABULAKE OPHIOLITE EASTERN TIANSHAN: IMPLICATION FOR THE TECTONIC EVOLUTION OF CAOB

https://doi.org/10.5800/GT-2017-8-3-0249

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Аннотация

The Eastern Tianshan belt, located in the southern CAOB, played an important role in the crustal evolution, particularly because it links the Southern Tianshan suture to the west with the Inner Mongolia Solonker suture to the east. However, some critical issues, such as the exact position and formation age of the final suture zone of the Paleo-Asian ocean are still obscure or in controversy. Thus, here we have performed detailed studies of the Kwabulake ophiolit zone, a key part of the southern suture of the CAOB. New LA- ICPMS zircon U–Pb ages, Hf isotopic values, and whole-rock geochemical data have been presented to: (1) constrain the age of the Kawabulake ophiolite, (2) understand the petrogenesis of the granodiorites and their tectonic setting, and (3) reveal their implications for geodynamics of the Eastern Tianshan belt.

Об авторах

Songjian Ao
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences
Китай
Beijing 100029


Wenjiao Xiao
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences; Xinjiang Research Center for Mineral Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences
Китай

Beijing 100012;

Urumqi 830011



Qigui Mao
Beijing Institute of Geology for Mineral Resources
Китай
Beijing 100012


Brian F. Windley
The University of Leicester
Великобритания

Department of Geology,

Leicester LE1 7RH

 



Для цитирования:


Ao S., Xiao W., Mao Q., Windley B. ZIRCON U-PB AND HF ISOTOPIC STUDY OF THE KAWABULAKE OPHIOLITE EASTERN TIANSHAN: IMPLICATION FOR THE TECTONIC EVOLUTION OF CAOB. Геодинамика и тектонофизика. 2017;8(3):409. https://doi.org/10.5800/GT-2017-8-3-0249

For citation:


Ao S., Xiao W., Mao Q., Windley B. ZIRCON U-PB AND HF ISOTOPIC STUDY OF THE KAWABULAKE OPHIOLITE EASTERN TIANSHAN: IMPLICATION FOR THE TECTONIC EVOLUTION OF CAOB. Geodynamics & Tectonophysics. 2017;8(3):409. https://doi.org/10.5800/GT-2017-8-3-0249

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ISSN 2078-502X (Online)