西昆仑赞坎铁矿地质和地球化学特征及矿床类型探讨

李智泉, 张连昌, 薛春纪, 郑梦天, 郝延海, 石玉君. 西昆仑赞坎铁矿地质和地球化学特征及矿床类型探讨[J]. 地质科学, 2015, 50(1): 100-117. doi: 10.3969/j.issn.0563-5020.2015.07
引用本文: 李智泉, 张连昌, 薛春纪, 郑梦天, 郝延海, 石玉君. 西昆仑赞坎铁矿地质和地球化学特征及矿床类型探讨[J]. 地质科学, 2015, 50(1): 100-117. doi: 10.3969/j.issn.0563-5020.2015.07
Li Zhiquan, Zhang Lianchang, Xue Chunji, Zheng Mengtian, Hao Yanhai, Shi Yujun. Geological and geochemical characteristics of Zankan iron deposit in the West Kunlun Mountains[J]. Chinese Journal of Geology, 2015, 50(1): 100-117. doi: 10.3969/j.issn.0563-5020.2015.07
Citation: Li Zhiquan, Zhang Lianchang, Xue Chunji, Zheng Mengtian, Hao Yanhai, Shi Yujun. Geological and geochemical characteristics of Zankan iron deposit in the West Kunlun Mountains[J]. Chinese Journal of Geology, 2015, 50(1): 100-117. doi: 10.3969/j.issn.0563-5020.2015.07

西昆仑赞坎铁矿地质和地球化学特征及矿床类型探讨

详细信息
    作者简介:

    李智泉,男,1990年1月生,硕士研究生,矿床学与地球化学专业.E-mail:lzq90118@aliyun.com

    通讯作者: 张连昌,男,1959年10月生,博士,研究员,矿床学和地球化学专业.E-mail:lczhang@mail.iggcas.ac.cn
  • 中图分类号: P588;P618.31

Geological and geochemical characteristics of Zankan iron deposit in the West Kunlun Mountains

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    Corresponding author: Zhang Lianchang
  • 赞坎铁矿位于西昆仑造山带塔什库尔干地块西段, 是近年新发现的一个大型沉积变质型磁铁矿床.铁矿体的顶—底板围岩分别为古元古代布伦阔勒群斜长角闪片岩和黑云母石英片岩; 矿区南部出露早古生代花岗岩岩体; 矿石类型以条带状及浸染状磁铁矿石为主, 兼具少量块状磁铁矿石.在详细矿区地质观察的基础上, 本文报道了矿石的地球化学特征与锆石U-Pb年代学分析结果.元素地球化学分析表明, 条带状铁矿石具有较高的稀土总量, 明显富集轻稀土, 未呈现明显Ce和Y元素的异常(Ce/Ce* =0.93~1.12、Y/Y* =0.74~1.30); 部分矿石显示Eu正异常(Eu/Eu* =1.66~4.46), 稀土配分形式与沉积变质型铁矿相似.矿体围岩变粒岩锆石U-Pb年龄为2 416±54 Ma, 大致反映沉积铁矿的形成时代, 而807±51 Ma的年龄反映变质作用时代.矿区一有铁矿捕虏体的花岗岩锆石U-Pb年龄为504±26 Ma.该期花岗岩的侵入对铁矿有明显的改造和叠加作用.
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出版历程
收稿日期:  2013-12-10
修回日期:  2014-05-06
刊出日期:  2015-01-25

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