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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第31卷

期数:

2009年第01期

页码:

42-47

栏目:

基础地质与矿产地质

出版日期:

2009-03-15

文章信息/Info

Title:

Progress in the Research of De'erni Cu(Co)Ore Deposit

文章编号:

1672-6561(2009)01-0042-06

作者:

焦建刚¹; 黄喜峰¹; 袁海潮²; 陈 博³; 孙 涛¹; 刘瑞平³

(1.长安大学 地球科学与资源学院,陕西 西安 710054; 2.西北有色地质勘查局 712总队, 陕西 咸阳 712000; 3.西安地质矿产研究所,陕西 西安 710054)

Author(s):

JIAO Jian-gang¹;  HUANG Xi-feng¹;  YUAN Hai-chao²;  CHEN Bo³;  SUN Tao¹;  LIU Rui-ping³

(1.School of Earth Sciences and Resources, Chang'an University, Xi'an 710054, Shaanxi, China; 2.712 Team of Northwestern Geology Exploration Bureau for Nonferrous Metal Resources, Xianyang 712000, Shaanxi, China; 3.Xi'an Institute of Geology and Mineral Resources, Xi'an 710054, Shaanxi, China)

关键词:

矿床成因; 成矿过程; 海底喷流—沉积; 德尔尼; 青海省

Keywords:

genesis of deposit;  metallogenic process;  submarine exhalation-sedimentation;  De'erni;  Qinghai Province

分类号:

P618

DOI:

-

文献标志码:

A

摘要:

以大比例尺地质填图和实测剖面工作为基础,通过野外详细地质观察,室内电子探针分析对比,再结合前人研究成果,论述了德尔尼铜(钴)矿床成矿晚于超基性岩,矿床主体为海底喷流沉积成因,同时经历了热液叠加成矿作用和构造变位。其成矿过程为:在拉张环境下,蛇绿岩破碎,同时发生了海底喷流—沉积作用,喷流物质沿蛇绿岩中的构造破碎带喷出与沉积,并萃取了超基性岩中大量的钴,矿体形成后又经历了构造变位。

Abstract:

Based on geological mapping and profiling combining with existing study achievements, the authors consider that the mineralization of De'erni Cu(Co)ore deposit should be later than its ultra-basic country rock. The genesis of De'erni ore deposit is mainly submarine exhalation-sedimentation, and it experiences later superimposed hydrothermal mineralization. The metallogenic process is such that in extensional tectonic setting, submarine exhalation-sedimentation occurs, the ophiolite breaks up, exhalative materials emplace in the ultra-basic rock along fault belt and extract large mount of Cobalt element from ultra-basic rock. Then, the ore bodies experience complicated tectonic events.

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备注/Memo

备注/Memo:

收稿日期:2008-04-20
基金项目: 国家自然科学基金项目(40702015)
作者简介: 焦建刚(1976-),男,湖北武汉人,副教授,工学博士,从事矿床学及数学地质研究。E-mail:jiangang@chd.edu.cn

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更新日期/Last Update: 2009-03-20