| 王凤宇,贠孟超.山西大营铁矿床成因探讨[J].矿产勘查,2019,(12):2964-2972 |
| 山西大营铁矿床成因探讨 |
| Discussion on genesis of Daying iron ore deposit in Shanxi |
| 投稿时间：2019-03-15 |
| DOI： |
| 中文关键词: 大营铁矿 成矿地质背景 控矿因素 矿床成因 山西 |
| 英文关键词: Daying iron ore, geological background of mineralization, ore-controlling factors, genesis of the deposit, Shanxi |
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| 中文摘要: |
| 大营铁矿赋存于新太古界五台群石咀亚群金岗库组中,赋矿岩性为闪石磁铁石英岩,矿床类型属沉积变质型铁矿,矿体受后期褶皱构造变形、剥蚀冲刷、断裂构造及岩浆岩体入侵的破坏改造,产状和形态复杂化,产状同围岩产状基本一致。文章通过阐述该区成矿地质背景、矿区地质特征(地层、构造、岩浆岩、变质作用、地球物理特征)、矿床地质特征,分析了区内磁铁矿成矿控制因素主要表现在古沉积环境、基性火山岩活动、变质作用和后期构造改造4个方面,总结了其矿床成因。 |
| 英文摘要: |
| Daying Iron Mine occurs in Jingangku Formation of Shizui Subgroup of Wutai Group in Neoarchaean.The ore-hosting lithology is amphibole magnetite quartzite.The deposit type belongs to sedimentary metamorphic iron ore deposit.The orebody is transformed by later fold structural deformation, erosion, fracture structure and intrusion of magmatic rock mass, and its occurrence and morphology are complicated.Its occurrence is basically consistent with that of surrounding rock.This paper expounds the metallogenic geological background, geological characteristics (strata, structure, magmatic rocks, metamorphism, geophysical characteristics) and geological characteristics of the deposit in this area, and analyses the controlling factors of magnetite mineralization in this area, which are mainly manifested in four aspects:Paleo-sedimentary environment, basic volcanic rock activity, metamorphism and late structural transformation, and summarizes the genesis of the deposit. |
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