| 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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| 关键词:Shijuli gold deposit gabbro rock-forming age ore-forming age north Qilian mountains |
| 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) |
| 作者 | 单位 | E-mail | | 宋忠宝 | 西安地质矿产研究所,陕西西安710054 | xaszhongbao@cgs.gov.cn | | 李文渊 | 西安地质矿产研究所,陕西西安710054 | | | 李怀坤 | 天津地质矿产研究所,天津300170 | | | 李惠民 | 天津地质矿产研究所,天津300170 | | | 栗亚芝 | 西安地质矿产研究所,陕西西安710054 | | | 李长安 | 西安地质矿产研究所,陕西西安710054 | | | 张江华 | 西安地质矿产研究所,陕西西安710054 | | | 王伟 | 西安地质矿产研究所,陕西西安710054 | | | 李丽 | 西安地质矿产研究所,陕西西安710054 | | | 陈博 | 西安地质矿产研究所,陕西西安710054 | |
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| Isotopic Age of Shijuli Gabbro in North Qilian Mountain and Its Geological Significance |
| 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. |
| SONG Zhong-bao,LI Wen-yuan,LI Huai-min,LI Hui-min,LI Ya-zhi,LI Chang-an,ZHANG Jiang-hua,WANG Wei,LI Li,CHEN Bo.2007.Isotopic Age of Shijuli Gabbro in North Qilian Mountain and Its Geological Significance[J].Acta Geoscientica Sinica,28(1):7-10. |
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