湖南西部层控锑矿床
    点此下载全文
引用本文：.1989.Stratabound antimony deposlts in western Hunan[J].Mineral Deposits,8(4):49~60
Hits: 1844
Download times: 1258
Author NameAffiliation
鲍振襄 中国有色金属长沙公司245队 
中文摘要:湘西层控锑矿床主要分布于雪峰隆起带的中段和东段。有两类产状；一为沿控矿地层自然延伸的缓倾斜整合层状、似层状和透镜状矿床；二为沿控矿地层的断裂构造延展的陡倾斜交错脉状矿床。均共生金。矿床赋存于特定的控矿层位或岩性段，成矿物质主要来自地壳深部，与火山喷溢作用有关，成矿与区域变质作用紧密联系在一起，并严格受构造控制，属复理石一类复理石建造之火山沉积一变质热液类型。铅模式年龄和K一Ar同位素年龄主要相当于加里东运动早期，与区域控矿构造——雪峰隆起形成时间一致。
中文关键词:层控锑矿床  地质特征  控矿因素  矿床成因  湖南西部
 
Stratabound antimony deposlts in western Hunan
Abstract:The stratabound antimony deposits in western Hunan are mainly distributed in the middle and eastern sectors of Xuefeng upwarping zone and assume two sorts of attitude: one is gently conformable stratiform, stratoid and lenticu-tar deposit stretching naturally along ore-hosting strata; the other is steeply dipping cross veinlike deposit stretching along the fault structure of ore-hosting strata. Both sorts of ore deposits are associated wi th gold. The ore deposits occur in specific ore-hosting horizon or lithologic portion, and the metallogenic substances probably came from the depth of the crust and were related to volcanic effusion. The metallogenesis was closely associated with regional metamorphism and strictly controlted by structures, belonging to volcanic deposition-metamorphic hydrothermal type.. Their lead model ages and K-Ar isotopic ages correspond mainly to early Caledonian orogeny and are consistent with the formation time of the regional ore-controlling structure-Xuefeng uplift．
View Full Text  View/Add Comment  Download reader
You are a visitor6401399  Beijing ICP for 05032737-5  Beijing 110102004559 male may be prepared
The Competent Units：中国科学技术协会 The Organizer ：中国地质学会矿床地质专业委员会 中国地质科学院矿产资源研究所
Address: 北京市百万庄大街26号 Zip Code ：100037 The Phone ：010-68327284;010-68999546 E-mail： minerald@vip.163.com
本系统由北京勤云科技发展有限公司设计 
手机扫一扫