Thermal history of the giant Qulong Cu-Mo deposit, Gangdese metallogenic belt, Tibet: Constraints on magmatic-hydrothermal evolution and exhumation | |
Zhao, JX (Zhao, Junxing)1,2,3; Qin, KZ (Qin, Kezhang)1; Xiao, B (Xiao, Bo)1; McInnes, B (McInnes, Brent)2; Li, GM (Li, Guangming)1; Evans, N (Evans, Noreen)2; Cao, MJ (Cao, Mingjian)1; Li, JX (Li, Jinxiang)4; Qin, KZ | |
Source Publication | GONDWANA RESEARCH |
2016 | |
Volume | 36Issue:0Pages:390-409 |
DOI | 10.1016/j.gr.2015.07.005 |
Abstract | complete thermal history for the Qulong porphyry Cu-Mo deposit, Tibet is presented. Zircon U-Pb geochronology indicates that the mineralization at Qulong resulted from brecciation-veining events associated with the emplacement of a series of intermediate-felsic intrusions. Combined with previously published ages, our results reveal a whole intrusive history of the Qulong composite pluton. Causative porphyries were emplaced at similar to 16.0 Ma as revealed by Ar-40-Ar-39 dating of hydrothermal biotite (15.7 +/- 0.2 Ma) and sericite (15.7 +/- 02 Ma). Zircon and apatite (U-Th)/He (ZHe and AHe) dating of Qulong revealed that both followed similar, monotonic thermal trajectories from 900 degrees C (U-Pb ages: 17.5-15.9 Ma) to 200 degrees C (ZHe: 15.7-14.0 Ma), and that the causative porphyries experienced faster cooling at a maximum rate of greater than 200 degrees C/myr. The Qulong deposit was exhumed between 13.6 Ma and 12.4 Ma (AHe) at an estimated rate of 0.16-0.24 mm/y, which is consistent with previous estimates for other Gangdese Miocene porphyry deposits. Our AHe thermochronology results suggest that neither the Gangdese thrust system, nor the Yadong-Gulu graben affected or accelerated exhumation at the Qulong deposit. (C) 2015 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved. |
Subject Area | 地质学 |
WOS ID | WOS:000384702900021 |
Language | 英语 |
Indexed By | SCI |
Keyword | Fission-track Thermochronology Porphyry Copper-deposit Beneath Southern Tibet Zircon U-pb Volcanic-rocks Lower Crust (U-th)/he Thermochronology Experimental Calibration Geochemical Constraints Structural Evolution |
Cooperation Status | 国际 |
Department | 碰撞与隆升 |
Subtype | Article |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itpcas.ac.cn/handle/131C11/7632 |
Collection | 图书馆 |
Corresponding Author | Qin, KZ |
Affiliation | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beitucheng West Rd 19, Beijing 100029, Peoples R China 2.Curtin Univ, Dept Appl Geol Appl Phys, John Laeter Ctr Isotope Res, TIGeR, Perth, WA 6945, Australia 3.James Cook Univ, Econ Geol Res Ctr EGRU, Sch Earth & Environm Sci, Townsville, Qld 4811, Australia 4.Chinese Acad Sci, Inst Qinghai Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uphft, 4A Datun Rd, Beijing 100085, Peoples R China |
Recommended Citation GB/T 7714 | Zhao, JX ,Qin, KZ ,Xiao, B ,et al. Thermal history of the giant Qulong Cu-Mo deposit, Gangdese metallogenic belt, Tibet: Constraints on magmatic-hydrothermal evolution and exhumation[J]. GONDWANA RESEARCH,2016,36(0):390-409. |
APA | Zhao, JX .,Qin, KZ .,Xiao, B .,McInnes, B .,Li, GM .,...&Qin, KZ.(2016).Thermal history of the giant Qulong Cu-Mo deposit, Gangdese metallogenic belt, Tibet: Constraints on magmatic-hydrothermal evolution and exhumation.GONDWANA RESEARCH,36(0),390-409. |
MLA | Zhao, JX ,et al."Thermal history of the giant Qulong Cu-Mo deposit, Gangdese metallogenic belt, Tibet: Constraints on magmatic-hydrothermal evolution and exhumation".GONDWANA RESEARCH 36.0(2016):390-409. |
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