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与前寒武纪含铁建造有关的铁矿床基本特征及研究进展

姚仲友 王天刚 汪建宁

资源调查与环境2012,Vol.33Issue(4):261-267,7.
资源调查与环境2012,Vol.33Issue(4):261-267,7.

与前寒武纪含铁建造有关的铁矿床基本特征及研究进展

Characteristics and research progress of iron deposits related to Precambrian iron-bearing formation

姚仲友 1王天刚 1汪建宁1

作者信息

  • 1. 南京地质矿产研究所,南京210016
  • 折叠

摘要

Abstract

The iron deposits related to Precambrian iron-bearing formation,formed in the environment of Archean and early Proterozoic sea floors,are the most economical iron deposit types in the word.Most of the structures of iron-bearing formation show a banding distribution and are named as banded iron-bearing formation(BIF),which is a non-uniform combination composing of various iron-rich minerals and mineral compoents are mainly of iron-bearing oxide,silicate,carbonate and sulfate.The uncommon granular iron-bearing formation(GIF) are mainly composed of iron-bearing oxide and silicate,while iron-bearing carbonate are rare.According to different structures and compositions,the iron-bearing formation can be divided into two categories: Algoma type and Superior type,and the Superior type iron-bearing formation is the most important host-rock for iron deposit.The iron deposits hosted by superior type iron-bearing formation can be further divided into three types: primary iron-rich iron-bearing formation,hematite-goethite deposits with false appearance and high-grade hematite deposit.In addition,the high-grade hematite ore is the most important deposit which is associated with diagenesis,supergene and deep fluids.In order to obtain prospecting breakthrough,we should strengthen research on genetic study of high-grade mineral deposits in the future work and reconsider the deposits that have a similar geological background.

关键词

高品位赤铁矿/条带状含铁建造/粒状含铁建造/前寒武纪含铁建造

Key words

high-grade hematite/banded iron-bearing formation/granular iron-bearing formation/Precambrian iron-bearing formation

分类

天文与地球科学

引用本文复制引用

姚仲友,王天刚,汪建宁..与前寒武纪含铁建造有关的铁矿床基本特征及研究进展[J].资源调查与环境,2012,33(4):261-267,7.

基金项目

大洋洲地区重要成矿带成矿规律与优势矿产资源潜力分析项目(项目编码:201130D06200123)资助致谢在本文撰写过程中,得到了中国地质调查局南京地质调查中心陆志刚研究员、戚建中研究员和邱永泉研究员的指导和帮助,在此致以诚挚的谢意! ()

资源调查与环境

2096-1871

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