河南省镇平县郭岗铁矿床地质特征及成因分析

详细信息

收稿日期: 2012-01-09

修回日期: 2012-02-17

刊出日期: 2012-04-30

GEOLOGY AND GENESIS OF THE GUOGANG IRON DEPOSIT IN ZHENPING COUNTY, HENAN PROVINCE

Received Date: 09 January 2012

Revised Date: 17 February 2012

Publish Date: 30 April 2012

摘要: 郭岗铁矿位于南秦岭褶皱带东段，属于隐伏型铁矿床.目前已发现的2个工业铁矿体Ⅰ和Ⅱ呈层状或似层状产出，垂向相距约25 m，赋矿围岩为泥盆系南湾组.矿石矿物主要为磁铁矿，矿石构造为块状和条带状构造等.矿床具典型的地层控制特征.微量元素和稀土元素地球化学特征均揭示其盆地沉积属于活动陆缘沉积，稀土元素地球化学特征还证明含矿物质主要来源于华北板块上地壳.郭岗铁矿床成因属于沉积变质型铁矿床.
- 郭岗铁矿 /
- 南湾组 /
- 磁铁矿 /
- 矿床成因 /
- 沉积变质型 /
- 河南省
Abstract: The Guogang iron deposit, located in the east section of Southern Qinling fold belt, is a concealed deposit. Two discovered industrial iron orebodies, which are about 25 meters apart vertically, show layered and stratiform-like structures. The host rock is the Devonian Nanwan Formation. The main ore mineral is magnetite, with massive and banded structures. The iron deposit is strictly controlled by stratum. Geochemistry of the trace elements and REE indicates its basin deposition formed in active continental margin. The REE patterns imply that the ore-forming materials are from upper crust of North China plate. The Guogang iron deposit belongs to sedimentary-metamorphic type in genesis.
- Guogang iron deposit /
- Nanwan Formation /
- magnetite /
- genesis /
- sedimentary-metamorphic type /
- Henan Province