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辽宁鞍本地区铁矿床地质特征及找矿标志分析
引用本文:张朋, 彭明生, 欧阳兆灼, 乔树岩. 辽宁鞍本地区铁矿床地质特征及找矿标志分析[J]. 地质与资源, 2012, 21(6): 516-521. doi: 10.13686/j.cnki.dzyzy.2012.06.010
作者姓名:张朋  彭明生  欧阳兆灼  乔树岩
作者单位:1.沈阳地质矿产研究所, 辽宁 沈阳 110034;; 2.中煤地质工程总公司, 北京 100073
基金项目:中国地质调查局"辽宁鞍山-本溪地区铁矿深部综合研究与找矿预测"项目
摘    要:在区域成矿地质背景分析的基础上,对辽宁鞍山、本溪地区典型条带状铁矿床的矿床地质特征和找矿标志进行了分析总结,研究表明铁矿产于太古宙晚期花岗岩-绿岩带内,主要为条带状含铁建造型铁矿床,鞍山群茨沟岩组、樱桃园岩组是找矿主要层位.矿石具有条带状、块状构造,半自形等粒粒状变晶结构、残留结构等.含铁建造的演化趋势与火山作用密切相关.鞍本凹陷区以及高大磁异常、复杂磁异常、低缓磁异常、深大磁异常和剩余磁异常区是寻找大型、超大型铁矿的最有利部位.

关 键 词:鞍本地区   铁矿   地质特征   找矿标志   辽宁省
收稿时间:2011-05-12
修稿时间:2011-06-15

GEOLOGICAL CHARACTERISTICS AND ORE-SEARCHING GUIDES OF THE IRON DEPOSITS IN ANSHAN-BENXI AREA, LIAONING PROVINCE
ZHANG Peng, PENG Ming-sheng, OUYANG Zhao-zhuo, QIAO Shu-yan. GEOLOGICAL CHARACTERISTICS AND ORE-SEARCHING GUIDES OF THE IRON DEPOSITS IN ANSHAN-BENXI AREA, LIAONING PROVINCE[J]. Geology and Resources, 2012, 21(6): 516-521. doi: 10.13686/j.cnki.dzyzy.2012.06.010
Authors:ZHANG Peng    PENG Ming-sheng    OUYANG Zhao-zhuo    QIAO Shu-yan
Affiliation:1.Shenyang Institute of Geology and Mineral Resources, Shenyang 110034, China;; 2.China Coal Geology Engineering Corporation, Beijing 100073, China
Abstract:Study on the regional geology and metallogenesis of the iron deposits in Anshan-Benxi area,Liaoning Province shows that the iron deposits,hosted in the late Archean granite-greenstone belts,are dominated by banded iron formation(BIF)type.The major ore-bearing beds are Cigou and Yingtaoyuan rock formations of Anshan group.The ores are in banded and massive structures,with hypidioblastic and relict textures.The evolution trend of the iron formation is closely related to volcanic activity.The most advantageous positions of searching for large and superlarge deposits is the AnshanBenxi sag area,as well as the areas with high magnetic anomaly,complex magnetic anomaly,low-gentle magnetic anomaly, big deep magnetic anomaly and residual magnetic anomaly.
Keywords:Anshan-Benxi area  iron deposit  geological characteristics  ore guide  Liaoning Province
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