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Zircon and apatite fission track analyses on mineralization ages and tectonic activities of Tuwu-Yandong porphyry copper deposit in northern Xinjiang, China
Yuan, WM; Bao ZK(保增宽); Dong JQ(董金泉); Bao, ZK; Dong, JQ; Guo, ZJ; Deng, J
2007
发表期刊SCIENCE IN CHINA SERIES D-EARTH SCIENCES
卷号50期号:12页码:1787-1795
通讯作者China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Anal Techn, Beijing 100039, Peoples R China ; Peking Univ, Dept Geol, Beijing 100871, Peoples R China
文章类型Article
摘要The mineralization ages reported in the past in the Tuwu-Yandong copper district not only are different, but also fall into the Hercynian epoch. This study has achieved 9 zircon and 7 apatite fission track analysis results. The zircon fission track ages range from 158 Ma to 289 Ma and the apatite ages are between 64 Ma and 140 Ma. The mineralization accords with the regional tectonics in the copper district. We consider that the zircon fission track age could reveal the mineralization age based on annealing zone temperature of 140-300 degrees C and retention temperature of similar to 250 degrees C for zircon fission track, and metallogenetic temperature of 120-350 degrees C in this ore district. Total three mineralization epochs have been identified, i.e., 289-276 Ma, 232-200 Ma and 165-158 Ma, and indicate occurrence of the mineralization in the Indosinian and Yanshan epochs. Corresponding to apatite fission track ages, the three tectonic-mineralizing epochs are 140-132 Ma, 109-97 Ma and 64 Ma, which means age at about similar to 100 degrees C after the mineralization. The three epochs lasted 146 Ma, 108 Ma and about 100 Ma from similar to 250 degrees C to similar to 100 degrees C and trend decrease from early to late. It is shown by the fission track modeling that this district underwent three stages of geological thermal histories, stable in Cretaceous and cooling both before Cretaceous and after 20 Ma.
关键词mineralization age tectonic epoch fission track zircon apatite Tuwu-Yandong Xinjiang
学科领域Geology
DOI10.1007/s11430-007-0130-9
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语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000251020300004
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239525
专题多学科研究中心
中国科学院高能物理研究所_人力资源处
作者单位中国科学院高能物理研究所
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Yuan, WM,Bao ZK,Dong JQ,et al. Zircon and apatite fission track analyses on mineralization ages and tectonic activities of Tuwu-Yandong porphyry copper deposit in northern Xinjiang, China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2007,50(12):1787-1795.
APA Yuan, WM.,保增宽.,董金泉.,Bao, ZK.,Dong, JQ.,...&Deng, J.(2007).Zircon and apatite fission track analyses on mineralization ages and tectonic activities of Tuwu-Yandong porphyry copper deposit in northern Xinjiang, China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,50(12),1787-1795.
MLA Yuan, WM,et al."Zircon and apatite fission track analyses on mineralization ages and tectonic activities of Tuwu-Yandong porphyry copper deposit in northern Xinjiang, China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 50.12(2007):1787-1795.
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