Qing Qian

Abstract: The Heiyingshan granite and the Laohutai granite plutons exposed in the Southwest Tianshan resemble A‐type granites geochemically. Analysis shows that the both are ferron calc‐alkalic peraluminous or ferron alkali‐calcic peraluminous with a relatively high concentration of SiO 2 (>70%), high alkali contents (Na 2 O + K 2 O = 7.14%‐8.56%; K 2 O>N 2 O; A/CNK = 0.99‐1.20), and pronounced negative anomales in Eu, Ba, Sr, P and Ti. A SHRIMP zircon U‐Pb age of 285±4 Ma was obtained for the Heiyingshan hornblende biotite granite intrusion. The geochemical and age dating data reported in this paper indicate that these granites were formed during the post‐collisional crustal extension of the Southwest Tianshan orogenic belt, in agreement with the published data for the granites in the South Tianshan.

Hornblende

10.1111/j.1755-6724.2008.tb00592.x

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Citations (53)

The collision between the Yili and Tarim blocks of the Southwestern Altaids: Geochemical and age constraints of a leucogranite dike crosscutting the HP–LT metamorphic belt in the Chinese Tianshan Orogen

Tectonophysics (2011)

Jun Gao Reiner Klemd Qing Qian Xi Zhang Jilei Li

Leucogranite

Dike

10.1016/j.tecto.2011.01.001

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Citations (266)

Episodic formation of Neotethyan ophiolites (Tibetan plateau): Snapshots of abrupt global plate reorganizations during major episodes of supercontinent breakup?

Earth-Science Reviews (2020)

Qing Qian Jörg Hermann Feiyu Dong Lin Liang Baolu Sun

Supercontinent

Forearc

Peridotite

Obduction

10.1016/j.earscirev.2020.103144

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Citations (41)

Genetically and geochronologically contrasting plagiogranites in South Central Tianshan ophiolitic mélange: Implications for the breakup of Rodinia and subduction zone processes

Journal of Asian Earth Sciences (2014)

Tuo Jiang Jun Gao Reiner Klemd Qing Qian Xi Zhang

Rodinia

Lile

Continental arc

10.1016/j.jseaes.2014.10.015

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Citations (26)

Variations of clinopyroxene/melt element partitioning during assimilation of olivine/peridotite by low-Mg diorite magma

Chemical Geology (2015)

Qing Qian Jörg Hermann Yanling Wang Jinghui Guo Fu Liu

Peridotite

Diorite

10.1016/j.chemgeo.2015.10.036

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Citations (12)

Record of assembly and breakup of Rodinia in the Southwestern Altaids: Evidence from Neoproterozoic magmatism in the Chinese Western Tianshan Orogen

Journal of Asian Earth Sciences (2015)

Jun Gao Xinshui Wang Reiner Klemd Tuo Jiang Qing Qian

Rodinia

Continental arc

10.1016/j.jseaes.2015.02.002

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Citations (110)

Was Triassic Continental Subduction Solely Responsible for the Generation of Mesozoic Mafic Magmas and Mantle Source Enrichment in the Dabie-Sulu Orogen?

International Geology Review (2003)

Qing Qian Mei‐Fei Chu Sun‐Lin Chung Tung-Yi Lee Xian-Ming Xiong

Mesozoic mafic rocks in the Dabie-Sulu orogen (DSO) are enriched in large-ion lithophile elements (LILE, e.g., Rb, K, Sr, Ba), relatively depleted in high-field strength elements (HFSE, e.g., Nb, Ta, P, Ti), and have strongly fractionated rare-earth elements (REE) and highly "enriched" Sr-Nd isotope ratios. These "arc-type" geochemical signatures have been generally ascribed to mantle source enrichment beneath the DSO by fluids/melts released from deeply subducted Triassic continental crust, i.e., part of the South China block (SCB). However, contemporaneous mafic rocks are widespread in the North China block (NCB) and possess similar elemental and Sr-Nd isotopic characteristics. Given that most of the NCB mafic rocks were emplaced at a considerable distance from the DSO, their arc-type geochemical features are unlikely to have been caused by Triassic continental subduction. Therefore, we argue that subduction of the SCB is a potential, but not necessarily the only, mechanism responsible for mantle enrichment beneath the DSO. We propose instead that the lithospheric mantle beneath the DSO and NCB was enriched prior to Triassic subduction, and that generation of the mafic rocks in both regions was due to a shared, regional-scale geological event, which we attribute to post-collisional delamination of the mantle lithosphere.

Lile

Continental arc

Lithophile

10.2747/0020-6814.45.7.659

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Citations (1)

SHRIMP dating of volcanic rocks from Ningwu area and its geological implications

Science in China Series D Earth Sciences (2003)

Qi Zhang Ping Jian Dunyi Liu Yuanlong Wang Qing Qian

Basement

10.1007/bf02879526

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