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现代矿业 ›› 2023, Vol. 39 ›› Issue (01): 33-.

• 地质·测量 • 上一篇    下一篇

刚果(金)上加丹加省SOKOROSHE 铜钴矿地质特征及找矿标志

李继业   

  1. 天津华北地质勘查总院
  • 出版日期:2023-01-25 发布日期:2023-05-11

Geological Characteristics and Prospecting Signs of the SOKOROSHE Copper-cobalt Deposit in the Haut-Katanga Province of the Democratic Republic of the Congo

LI Jiye   

  1. Tianjin North China Geological Exploration General Institute
  • Online:2023-01-25 Published:2023-05-11

摘要: SOKOROSHE 铜钴矿位于中非铜矿带刚果(金)亚带,褶皱、断裂构造发育,具有良好 的成矿地质条件。从成矿地质背景入手,通过总结矿床地质特征,对相关文献和控矿因素进行分 析研究,进而类比带内典型矿床,指出矿床之间既有共性,也有各自的特殊性。研究结果表明:该 矿床赋矿层位主要为恩古巴群,围岩种类多,赋矿岩性以构造角砾岩为主;矿体呈似层状、脉状,具 有分支复合现象,受断裂构造控制作用明显;矿石矿物组合较简单,主要为孔雀石、黄铜矿、辉铜 矿、水钴矿。恩古巴群地层提供了良好的物源基础和条件,次一级的北西向断裂为矿床形成提供 了空间、动力。该矿床地表孔雀石化是最直接的找矿标志,“铜草”、“钴笋”可作为植物找矿标志, 对于区域内矿床勘查有一定的借鉴意义。

关键词: SOKOROSHE铜钴矿, 地质特征控矿因素, 找矿标志

Abstract: The SOKOROSHE copper-cobalt deposit is located in the Congo (Kinshasa) sub belt of the Central African copper belt,with developed folds and faults,and good metallogenic geological condi⁃ tions. Starting from the ore-forming geological background,this paper summarizes the geological character⁃ istics of the ore deposits,analyzes the related literature and ore-controlling factors,and then analizes the typical ore deposits in the belt,points out that there are both commonalities and particularities among the ore deposits. The research results show that the deposit is mainly located in Enguba Group,with various types of surrounding rocks,and the main ore bearing lithology is structural breccia. The orebodies are strati⁃ fied and veined,with branching and compound phenomena,and obviously controlled by fault structures. The ore mineral assemblage is relatively simple,mainly malachite,chalcopyrite,chalcogenite,hydroco⁃ balt. The strata of Enguba Group provides good provenance foundation and conditions,and the sublevel NW-trending faults provide space,motive force for the formation of deposits. The peacock petritization on the surface of the deposit is the most direct prospecting indicator,and“copper grass”and“cobalt bamboo shoot”can be used as plant prospecting indicator,which has certain reference significance for the mineral deposit exploration in the region.

Key words: SOKOROSHE copper-cobalt deposit, geological features, Ore controlling factors, Prosp ecting marks