| 新疆希勒库都克铜钼矿区岩浆混合作用: 来自锆石U-Pb年代学的证据 |
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| 引用本文： | 龙灵利,王玉往,王京彬,王莉娟,李秋立,王书来,蒲克信,张会琼,廖震.新疆希勒库都克铜钼矿区岩浆混合作用: 来自锆石U-Pb年代学的证据[J].岩石学报,2010,26(2):449-456. |
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| 作者姓名： | 龙灵利 王玉往 王京彬 王莉娟 李秋立 王书来 蒲克信 张会琼 廖震 |
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| 作者单位： | 1. 北京矿产地质研究院,北京,100012
2. 中国科学院地质与地球物理研究所离子探针中心,北京,100029 |
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| 基金项目： | 国家重点基础研究发展规划项目(2007CB411304和2001CB409806)资助 |
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| 摘 要： | 新疆北部富蕴县内希勒库都克铜钼矿区的花岗闪长岩及其包体岩相学、矿物化学和岩石地球化学特征及野外地质特征显示其为岩浆混合作用的结果。本文获得花岗闪长岩及其中暗色微粒包体玄武安山玢岩、细粒辉长闪长岩锆石U-Pb年龄为326.8±2.1Ma、327.6±2.4Ma、329.3±2.3Ma,年龄值基本一致,这一结果从年代学角度为花岗闪长岩及其中暗色微粒包体的岩浆混合作用成因提供证据。偏酸性的花岗闪长质与偏基性玄武安山质岩浆混合作用形成了331.9±2.1Ma的安山玢岩脉。
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| 关 键 词： | 岩浆混合 锆石U-Pb年代学 希勒库都克铜钼矿区 新疆 |
| 收稿时间： | 2009/4/30 0:00:00 |
| 修稿时间： | 2009/12/2 0:00:00 |
Magma mixing in the Xilekuduke Cu-Mo ore district in Xinjiang: Evidence from zircon U-Pb chronology |
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| Long LL,Wang YW,Wang JB,Wang LJ,Li QL,Wang SL,Pu KX,Zhang HQ and Liao Z.Magma mixing in the Xilekuduke Cu-Mo ore district in Xinjiang: Evidence from zircon U-Pb chronology[J].Acta Petrologica Sinica,2010,26(2):449-456. |
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| Authors: | Long LL Wang YW Wang JB Wang LJ Li QL Wang SL Pu KX Zhang HQ and Liao Z |
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| Affiliation: | Beijing Institute of Geology for Mineral Resources, Beijing 100012, China;Beijing Institute of Geology for Mineral Resources, Beijing 100012, China;Beijing Institute of Geology for Mineral Resources, Beijing 100012, China;Beijing Institute of Geology for Mineral Resources, Beijing 100012, China;The Center of Ion Microprobe, Institute of Geology and Geophysics, Chinese Academy of Science, Beijing 100029, China;Beijing Institute of Geology for Mineral Resources, Beijing 100012, China;Beijing Institute of Geology for Mineral Resources, Beijing 100012, China;Beijing Institute of Geology for Mineral Resources, Beijing 100012, China;Beijing Institute of Geology for Mineral Resources, Beijing 100012, China |
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| Abstract: | Lithological, mineral chemical and lithogeochemical characteristics of granodiorite and its enclaves from Xilekuduke Cu-Mo ore district in Fuyun County, northern Xinjiang and its field geological features indicate that they are the products of magma mixing. This paper got the zircon U-Pb ages of 326.8±2.1Ma, 327.6±2.4Ma, 329.3±2.3Ma from the granodiorite and its mafic microgranular enclaves of basalt-andesite porphyrite and fine-grained grabbo-diorite, and the dating result provides the proof for magma mixing origin of granodiorite and its enclaves from the angle of chronology. That mixing between acid granodioritic magma and basic basalt-andesitic magma has produced andesitic porphyrite with 331.9±2.1Ma. |
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| Keywords: | Magma mixing Zircon U-Pb chronology Xilekuduke Cu-Mo ore district Xinjiang |
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