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川西里伍铜矿黑云母矿物化学特征及成矿指示意义

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邹文, 李同柱, 管桦, 何立夫, 张才森. 2020. 川西里伍铜矿黑云母矿物化学特征及成矿指示意义. 沉积与特提斯地质, 40(1): 60-67. doi: 10.19826/j.cnki.1009-3850(2020)01-0060-08
引用本文: 邹文, 李同柱, 管桦, 何立夫, 张才森. 2020. 川西里伍铜矿黑云母矿物化学特征及成矿指示意义. 沉积与特提斯地质, 40(1): 60-67. doi: 10.19826/j.cnki.1009-3850(2020)01-0060-08
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ZOU Wen, LI Tongzhu, GUAN Hua, HE Lifu, ZHANG Caisen. 2020. Chemical composition andmetallogenic significance of biotite from the Liwu copper deposit, western Sichuan Province. Sedimentary Geology and Tethyan Geology, 40(1): 60-67. doi: 10.19826/j.cnki.1009-3850(2020)01-0060-08
Citation: ZOU Wen, LI Tongzhu, GUAN Hua, HE Lifu, ZHANG Caisen. 2020. Chemical composition andmetallogenic significance of biotite from the Liwu copper deposit, western Sichuan Province. Sedimentary Geology and Tethyan Geology, 40(1): 60-67. doi: 10.19826/j.cnki.1009-3850(2020)01-0060-08
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川西里伍铜矿黑云母矿物化学特征及成矿指示意义

  • 1. 九龙县雅砻江矿业有限责任公司, 四川 甘孜 626000;

  • 2. 中国地质调查局成都地质调查中心, 四川 成都 610081

  • 基金项目:

    本文得到中国地质调查局成都地质调查中心项目（编号：CDG2019-KF-SK-001）、国家自然科学基金青年科学基金项目（编号：41902068）的联合资助

详细信息
    作者简介: 邹文(1974-),男,高级工程师,注册安全工程师,从事矿山开发管理工作。E-mail:236581008@qq.com
    通讯作者: 李同柱(1981-),男,高级工程师,从事成矿预测与矿产勘查工作。E-mail:23000347@qq.com

  • 中图分类号: P581

Chemical composition andmetallogenic significance of biotite from the Liwu copper deposit, western Sichuan Province

  • 1. Jiulong Yalongjiang Mining Co., Ltd., Ganzi 626200, Scichuan, China;

  • 2. Chengdu Center, China Geological Survey, Chengdu 610081, Sichuan, China

More Information

    摘要
  • 为了查明川西里伍铜矿黑云母的成因类型、形成的物理化学条件及成矿指示意义，本文对矿化蚀变带中的黑云母开展了电子探针分析。结果显示黑云母具有高SiO2（平均34.67%）、Al2O3（平均19.20%）、FeO（平均22.45%）、MgO（平均7.96%）、K2O（平均9.37%）特征，属于铁质黑云母。形成于低的氧逸度、中高温（平均531℃）、较大压力（平均3.99 kbar）与深度（平均深度为15.08 km）的环境。结合前人研究认为，里伍铜矿矿化蚀变带中的黑云母是原生黑云母重结晶改造而成，里伍式富铜矿床与江浪穹窿成穹过程中的变形-变质作用具有成因联系。
    In order to ascertain the genetic type, physicochemical conditions and metallogenic significance, electron probe analysis of biotite in alteration zone of the Liwu copper deposit is carried out in this paper. The results show that these biotite grains: (1) have high SiO2 (average 34.67%), Al2O3 (average 19.20%), FeO (average 22.45%), MgO (average 7.96%) and K2O (average 9.37%) contents, and are primary iron biotite; (2) were formed in low oxygen fugacity conditions, medium to high temperature environment (average 531℃) and high pressure (average 3.99 kbar). Combined with previous data, it is believed that biotite in the Liwu copper deposit is probably formed by recrystallization of primary biotite, and the Liwu-type high-grade copper deposit is most likely related to the deformation-metamorphism during the doming process of the Jianglang dome.
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出版历程
收稿日期:  2019-09-18
修回日期:  2020-02-10
刊出日期:  2020-03-30

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