田京辉,倪培,范建国.永平铜矿成矿流体特征研究[J].地质找矿论丛,2001,(1):24-27 |
永平铜矿成矿流体特征研究 |
ORE-FORMING FLUID CHARACTERISTICS RESEARCH OF YONGPING COPPER DEPOSIT |
投稿时间:2000-06-28 修订日期:2000-12-18 |
DOI:10.6053/j.issn.1001-1412.2001.1. 005 |
中文关键词: 成矿流体 流体包裹体 永平铜矿 江西 |
英文关键词:ore-forming fluid fluid inclusion Yongping copper deposit Jiangxi |
基金项目:国家自然科学基金项目(编号:49133130;49702023)资助 |
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全文下载次数: 2011 |
中文摘要: |
江西永平铜矿床产于萍乡—乐平断裂拗陷带中,受中石炭统叶家湾组砂页岩和灰岩地层控制。流体包裹体和硫、铅同位素数据表明,成矿流体主体为海水,并可能有部分深源流体加入,盐度w(NaCl)eq=1.5%~5%。成矿作用可以分为3个阶段:在220~350℃阶段形成层状矿体;在280~360℃阶段形成脉状矿体;在180~300℃阶段形成后期混合岩中的硫化物-石英脉。是一个类似于黑矿型和塞浦路斯型的华南型喷流沉积块状硫化物矿床。 |
英文摘要: |
Yongping copper deposit, Jiangxi province, occurs in the Yejiawan Formation (middle Carboniferous period). It is controlled by Pingxiang Leping fault depression. The ore-forming fluid is composed mostly of sea-water with possiblely a few amount of deep derived fluid and salinities mostly range fromt 1.5 to 5 eq.wt.%NaCl. The metallogenesis can be divided into three stages: formation of straified deposit at 220~350℃;formation of veined deposit at 280~360℃;formation of sulfide-quartz stockwork at 180~300℃. It is a Sedex-type massive sulphide deopsit similar to Kuruko-type and Cyprus-type. |
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