| 北祁连山石居里辉长岩的同位素年龄及其地质意义 |
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| 引用本文： | 宋忠宝,李文渊,李怀坤,李惠民,栗亚芝,李长安,张江华,王伟,李丽,陈博.北祁连山石居里辉长岩的同位素年龄及其地质意义[J].地球学报,2007,28(1):7-10. |
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| 作者姓名： | 宋忠宝 李文渊 李怀坤 李惠民 栗亚芝 李长安 张江华 王伟 李丽 陈博 |
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| 作者单位： | 西安地质矿产研究所,陕西西安710054;西安地质矿产研究所,陕西西安710054;天津地质矿产研究所,天津300170;天津地质矿产研究所,天津300170;西安地质矿产研究所,陕西西安710054;西安地质矿产研究所,陕西西安710054;西安地质矿产研究所,陕西西安710054;西安地质矿产研究所,陕西西安710054;西安地质矿产研究所,陕西西安710054;西安地质矿产研究所,陕西西安710054 |
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| 基金项目： | 国土资源部资源补偿费项目“甘肃省肃南裕固族自治县雪泉铜(锌)矿普查”(编号:中国地调发【1003】18号文) |
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| 摘 要： | 首次利用锆石U-Pb方法测得北祁连山西段石居里辉长岩的生成年龄为(457.9±1.2)Ma.在空间上,石居里辉长岩与石居里铜矿紧密相关,石居里辉长岩位于石居里铜矿的下部;在时间上,虽然目前尚无石居里铜矿的成矿时代年龄,但研究认为与石居里辉长岩同属加里东期,而且成岩时代早于成矿时代,因此推测石居里辉长岩为可能为石居里铜矿提供了热源.由于该区有较多的中酸性岩体存在,该成岩时代的确定对于在该区寻找塞浦路斯型块状硫化物矿床有重要的理论和实际意义.
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| 关 键 词： | 石居里铜矿 辉长岩 成岩时代 成矿时代 北祁连山 |
Isotopic Age of Shijuli Gabbro in North Qilian Mountain and Its Geological Significance |
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| SONG Zhong-bao,LI Wen-yuan,LI Huai-min,LI Hui-min,LI Ya-zhi,LI Chang-an,ZHANG Jiang-hu,WANG Wei,LI Li and CHEN Bo.Isotopic Age of Shijuli Gabbro in North Qilian Mountain and Its Geological Significance[J].Acta Geoscientia Sinica,2007,28(1):7-10. |
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| Authors: | SONG Zhong-bao LI Wen-yuan LI Huai-min LI Hui-min LI Ya-zhi LI Chang-an ZHANG Jiang-hu WANG Wei LI Li and CHEN Bo |
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| Institution: | Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054;Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054;Tianjin Institute of Geology and Mineral Resources, Tianjin 300170;Tianjin Institute of Geology and Mineral Resources, Tianjin 300170;Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054;Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054;Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054;Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054;Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054;Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054 |
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| Abstract: | The U-Pb isotopic age of Shijuli gabbro in North Qilian Mountain is (457.9±1.2) Ma. The Shijuli gabbro is located in the south of the Shijuli copper deposit and is obviously related to this deposit. Although the metallogenic age of this deposit is not known, studies show that it was formed in Caledonian, with the rock-forming age earlier than the ore-forming age. This possibly suggests that the rock body provided heat for the deposit. As this area has many intermediate-acid rocks, the determination of the rock-forming age has an important theoretical and practical significance in search for the Cyprus massive sulfide ore deposits in this area. |
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| Keywords: | Shijuli gold deposit gabbro rock-forming age ore-forming age north Qilian mountains |
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