| 鲁西地区铁矿类型特征及成矿谱系 |
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| 引用本文： | 郝兴中,孙斌,张文,王巧云,郭艳,高华丽,王丽娟.鲁西地区铁矿类型特征及成矿谱系[J].科学技术与工程,2023,23(35):14988-15001. |
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| 作者姓名： | 郝兴中 孙斌 张文 王巧云 郭艳 高华丽 王丽娟 |
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| 作者单位： | 山东省地质调查院 |
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| 基金项目： | 山东省地质勘查项目(2023-02)；山东省自然科学(编号: ZR2020MD033)；中国地质调查局项目(编号: DD2016005223,DD20190166) |
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| 摘 要： | 山东省是全国的铁矿资源大省，其中鲁西地区铁矿成矿地质条件优越，铁矿类型有沉积变质型、接触交代型、热液交代充填—风化淋滤型、沉积型、岩浆型等多个成矿类型；其中尤以沉积变质型铁矿、接触交代型铁矿最为重要，是全省的主要铁矿石来源。本文在梳理鲁西地区各种类型铁矿时空分布特点、分析典型铁矿床特征、控矿要素及矿床成因的基础上，以地质演化史为轴线，建立了鲁西地区各类型铁矿的成矿谱系。研究表明，在地质演化过程中，鲁西地区铁矿的形成是在海底火山喷发、地层沉积、岩浆侵入、区域变质、构造运动、风化淋滤等地质及成矿作用的高度耦合下形成的一系列地质产物；即在新太古代时期形成了沉积变质型铁矿（如韩旺式、苍峄式、杨庄式和济宁式铁矿）和岩浆型铁矿（如肖家沟式铁矿），在晚石炭世时期形成了沉积型铁矿（如山西式铁矿），在早白垩世时期形成了接触交代型铁矿（如莱芜式、莲子汪式铁矿）和热液交代充填—风化淋滤型铁矿（如朱崖式铁矿）。各种类型铁矿床具有地层控矿、岩体控矿、构造控矿和多要素共同控矿的特点。在铁矿勘查过程中，应按其成因类型和控矿要素进行有针对性的勘查部署，以此促进鲁西地区的铁矿勘查及研究工作整体水平得以提升。
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| 关 键 词： | 铁矿 沉积变质型 接触交代型 控矿要素 成矿谱系 鲁西 |
| 收稿时间： | 2023/5/20 0:00:00 |
| 修稿时间： | 2023/11/21 0:00:00 |
Study on Characteristics of Iron Ore Types and Metallogenic Pedigree in Western Shandong Province, China |
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| Hao Xingzhong,Sun Bin,Zhang Wen,Wang Qiaoyun,Guo Yan,Gao Huali,Wang Lijuan.Study on Characteristics of Iron Ore Types and Metallogenic Pedigree in Western Shandong Province, China[J].Science Technology and Engineering,2023,23(35):14988-15001. |
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| Authors: | Hao Xingzhong Sun Bin Zhang Wen Wang Qiaoyun Guo Yan Gao Huali Wang Lijuan |
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| Affiliation: | Shandong Institute of Geological Survey |
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| Abstract: | Shandong Province is a major province of iron ore resources in China, and the ore-forming geological conditions of iron ore are superior in western Shandong. Types of mineral deposits are diverse, including sedimentary metamorphic iron ore, contact metasomatic iron ore, hydrothermal metasomatic filling-weathering leaching iron ore, sedimentary iron ore, magmatic iron ore and other types. In particular, sedimentary metamorphic iron ore and contact metasomatic iron ore are the most important and the main sources of iron ore deposits in the province. On the basis of combing the space-time distribution characteristics of various iron ore types in western Shandong, focusing on the analysis of the characteristics of typical iron ore deposits, ore-controlling factors and genesis of deposit, this study establishes the metallogenic genealogy of various types of iron ore deposits in western Shandong along the axis of the history of geological evolution. This study indicates that in the process of geological evolution, the formation of iron ore in western Shandong is a series of geological products formed under the highly coupling of geological and mineralization processes such as submarine volcanic eruption, sedimentation, magma intrusion, regional metamorphism, tectonic movement, weathering and leaching. Sedimentary metamorphic iron ores (such as Hanwang type, Cangyi type, Yangzhuang type and Jining type iron ores) and magmatic iron ores (Xiaojiagou type iron ore) were formed in the Neo-Archean era. Sedimentary iron ore (Shanxi type iron ore) was formed in the late Carboniferous. Contact metasomatic iron ore (such as Laiwu type and Lianziwang type iron ores) and hydrothermal metasomatic filling-weathering leaching type iron ore (Zhuya type iron ore) were formed in the early Cretaceous. Various types of iron ore deposits in western Shandong have the characteristics of strata ore-controlling, intrusive rock ore-controlling, structural ore-controlling, and multiple elements controlling ore together. In the process of iron ore exploration, targeted arrangement should be carried out according to genetic types and ore-controlling factors, so as to promote the overall in-depth progress of iron ore exploration and research in the western Shandong. |
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| Keywords: | western Shandong iron ore sedimentary metamorphic type contact metasomatic type ore-controlling elements metallogenic lineage |
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