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2016, 35(4) 968-981 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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Keywords |
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Queershan granitic complex |
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zircon U--Pb ages |
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geochemistry |
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petrogenesis |
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tectonic setting |
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western Sichuan |
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Authors |
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LIU Hai-Yong |
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WANG Mu |
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YAN Wei-Bing |
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ZENG Qiang |
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ZHAO Lei |
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LIAO Bing-Yong |
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YANG Jian-Hong |
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ZHANG Zhi-Hu |
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ZHANG Tie-Ying |
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LUO Wei |
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PubMed |
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Article by Liu, H. Y.
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Article by Wang, M.
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Article by Yan, W. B.
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Article by Zeng, Q.
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Article by Zhao, L.
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Article by Liao, B. Y.
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Article by Yang, J. H.
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Article by Zhang, Z. H.
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Article by Zhang, T. Y.
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Article by Luo, W.
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Zircon U--Pb ages and geochemistry of Queershan granitic complex in western Sichuan and metallogenic specialization |
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LIU Hai-Yong, WANG Mu, YAN Wei-Bing, ZENG Qiang, ZHAO Lei, LIAO Bing-Yong, YANG Jian-Hong, ZHANG Zhi-Hu, ZHANG Tie-Ying, LUO Wei |
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1. College of Earth Sciences��Chengdu University of Technology��Chengdu 610059��China; 2. Sichuan Geology and Mineral Bureau ��egional Geological Survey��Chengdu 610213��China; 3. The Tibet Autonomous ��egion Institute of Geological Survey��Lhasa 850000��China; 4. Geological Exploration Technology Institute of Jiangsu Province��Nanjing 210049��China; 5. Sino Shaanxi Nuclear Industry Group Company��Xi'an 710100��China |
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Abstract��
The study of geochronology and whole-rock geochemistry in Que'ershan granitic complex from the northern Yidun arc collision-orogenic belt��western Sichuan shows that Que'ershan complex consists mainly of gran- odiorite��monzogranite and syenogranite�� The results of zircon LA--ICP--MS U--Pb data indicate that the granodiorite of this granitic complex formed in the Late Triassic (224 ±3 Ma)��and the monzogranite was emplaced in the Early Cretaceous (102 ±1 Ma)�� The geochemical data suggest that the Late Triassic granodiorites belong to the volcanic arc granite series��and might form in a pre-collision subduction setting��whereas the Early Cretaceous monzogranites and syenogranites belong to post-collisional rock serious��and probably formed within plate or continent during the post-orogeny stage�� In combination with regional geological data��the authors propose that the Que'ershan granitic complex were results of subduction-collision-uplift of Yidun arc collision-orogenic belt during Indosinian--Yans- hanian period�� |
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Keywords��
Queershan granitic complex
zircon U--Pb ages
geochemistry
petrogenesis
tectonic setting
western Sichuan
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Received Revised Online: |
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