云南省晋宁县天井铁矿地质特征与找矿预测

doi:10.13776/j.cnki.resourcesindustries.20160615.011

资源与产业 ›› 2016, Vol. 18 ›› Issue (3): 86-92.DOI: 10.13776/j.cnki.resourcesindustries.20160615.011

云南省晋宁县天井铁矿地质特征与找矿预测

崔中良，钱恒之

（昆明理工大学〖KG*2〗国土资源工程学院，云南昆明 650093）

出版日期:2016-06-26 发布日期:2016-06-26

GEOLOGY AND PROSPECTING FORECAST OF TIANJING IRON DEPOSIT IN JINNING COUNTY, YUNNAN PROVINCE

Cui Zhongliang, Qian Hengzhi

(School of Land & Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China)

Online:2016-06-26 Published:2016-06-26

摘要/Abstract

摘要：

天井铁矿床位于康滇地轴铁矿带上，成矿条件优越。文章在对区域成矿地质背景、矿区地质特征、矿体特征、矿石特征等进行仔细研究的基础上，分析认为该矿区原生矿床成因为中低温热液矿床，而残积坡则是原生矿风化后堆积形成的，并提出应进行重点找矿的3个区域。结果表明，矿体主要赋存于中元古界下昆阳群大龙口组地层中，矿区成矿有两次成矿事件：1）晋宁期基性岩浆顺断层侵入形成中低温热液矿床，2）燕山运动使地层抬升，浅部的矿体遭受剥蚀风化，形成了残坡积的赤铁矿、褐铁矿。

关键词: 天井铁矿床, 矿床成因, 地质特征, 找矿预测

Abstract:

Tianjing iron deposit, located in Kangdian axis iron belt, where is good for iron mineralization. Based on its regional metallogenic settings, ore deposit geology, ore bodies and ores, the genesis of the primary deposit is regarded as mediumlow temperature hydrothermal mineralization, the diluvial slope deposit as the aggregate of weathered primary. This paper presents 3 key areas of high potential resources. The ore bodies are mainly hosted in lower Kunyang group Dalongkou formation strata, the middle Proterozoic. There are two metallogenic evets, the mediumlow temperature hydrothermal deposits formed from the intrusion of basic magma during Jinning period, the hematite and limonite deposits in the form of diluvial slope deposit from eroded and weathered shallow part, which had been lifted during Yanshan period.

Key words: Tianjing iron ore deposit, deposits genesis, geology, prospecting forecast

中图分类号:

F205
F407.1

崔中良，钱恒之. 云南省晋宁县天井铁矿地质特征与找矿预测[J]. 资源与产业, 2016, 18(3): 86-92.

Cui Zhongliang, Qian Hengzhi. GEOLOGY AND PROSPECTING FORECAST OF TIANJING IRON DEPOSIT IN JINNING COUNTY, YUNNAN PROVINCE[J]. Resources & Industries, 2016, 18(3): 86-92.

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云南省晋宁县天井铁矿地质特征与找矿预测

GEOLOGY AND PROSPECTING FORECAST OF TIANJING IRON DEPOSIT IN JINNING COUNTY, YUNNAN PROVINCE

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