邯邢地区接触交代型磁铁矿床伴生Co的赋存特征  

Occurrence Characteristics of the Associated Co of Contact Metasomatic Magnetite Deposit in Handan-Xingtai Region

作　　者：梁海廷 

机构地区：[1]五矿邯邢矿业邯郸地质勘查有限公司

出　　处：《现代矿业》2017年第10期16-19,25,共5页Modern Mining

摘　　要：邯邢地区接触交代型磁铁矿床主要赋存于燕山期中性侵入岩和中奥陶统各组、段碳酸盐岩的接触带内,矿石中普遍伴生Co。通过对矿石质量特征的研究,认为Co主要以类质同象形式富集于黄铁矿中,尤其以第二世代黄铁矿中Co含量最高,Co含量与S含量成正相关关系。在同一矿床中Co的分布规律与矿床成因具有密切关系,一般矿床上部Co含量高于下部。根据矿床成因及Co、Ni含量的分析,判断Co的来源为岩浆热液。随着矿山开采和选矿工艺水平的提高,加强对该区域接触交代型磁铁矿床伴生Co的综合开发利用研究,可为该区矿产资源综合回收提供可靠依据。The contact metasomatic magnetite deposit in Handan-Xingtai Region is mainly hosted in the contact zone of the carbonate rocks in the Yanshannian neutral intrusive rocks and Ordovician groups,and generally associated with Co. Through the study of the ore quality characteristics,it is show that Co is mainly enriched in pyrite with isomorphism type,especially for the generation pyrite with the highest Co content,Co content is positively correlated with the S content in ores. The Co distribution regularity is closely related to the deposit genesis in the same deposit,generally speaking,the Co content of the upper of deposit is higher than that of the lower of the deposit. According to the analysis of deposit genesis of Co and Ni contents of ores,it is inferred that the Co source of the ores is magmatic hydrothermal. With the development and improvement of mining techniques and mineral processing techniques,it is of great significance to strength the comprehensive utilization study of associated Co of the contact metasomatic magnetite deposit in Handan-Xingtai Region,so as to provide some reliable reference for the comprehensive recovery of mineral resources.

关 键 词：接触交代型磁铁矿床 赋存特征 矿石质量 类质同象 

分 类 号：P618.31[天文地球—矿床学]