| 山东铁矿成矿规律及潜力分析 |
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| 关键词:Shandong Province iron ore ore-controlling elements metallogenic regularity minerogenetic series prospecting prospect |
| 基金项目:山东省自然科学基金项目(编号: ZR2020MD033);中国地质调查局“全国重要矿集区找矿预测”项目(编号: DD2016005223);“重要锡;锰等矿集区矿产地质调查”(编号: DD20190166);山东省矿产资源国情调查(编号: 鲁矿保[2020]1号) |
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| 摘要: |
| Metallogenic Regularity and Potential Analysis of Iron Ore in Shandong Province |
| Shandong Province is located in the east of China and has experienced a long history of geological evolution. It is divided into two main blocks of western Shandong and eastern Shandong. The geology and mineral resources have their own distinct characteristics. Among these, the iron ore-forming geological conditions in the area are superior, the genetic types are diverse, the deposits are widely distributed, and the resources reserves are abundant. It is an important iron ore development base in China. The purpose of this study is to summarize the geological and mineral data of the province, analyze the iron metallogenic regularity of the province from the aspects of stratigraphic ore-hosting, structural ore-controlling, magmatic ore-forming and geophysical anomaly prospecting, and further study the iron ore resource potential of the province. This study found that the iron ore types in the province are divided into 14 ore deposit types, including Cangyi type, Laiwu type, Lianziwang type, and Zhuya type, etc. The study on the metallogenic regularity of iron ore showed that each type of iron ore is controlled by geological structure evolution, strata, magmatic rock and structure; For example, in terms of strata ore-controlling, sedimentary metamorphic type and chemical sedimentary type are more prominent; in terms of magmatic rock ore-controlling, magmatic type iron ore is the most prominent; while contact metasomatic type iron ore is the result of the combined ore-controlling of strata, magmatic rock and structure. With the continuous advancement of deep prospecting, the focus of future exploration work is to summarize geophysical anomalies prospecting carefully, and the exploration of low slow magnetic anomaly areas is the key to making great progress. Based on the comparative analysis of the temporal and spatial distribution characteristics of iron ore in the whole region and the study of metallogenic regularity, the metallogenic series of iron ore in the whole province are divided, and the comprehensive prospecting prediction model was summarized. The study established a comprehensive iron ore exploration technology system in the study area. The study has delineated 36 iron ore prospecting areas, including Cangyi iron ore prospecting area, Laiwu iron ore prospecting area, Zihe iron ore prospecting area and Laiyang West iron ore prospecting area; Among them, there are 15 sedimentary metamorphic type iron ores, 9 contact metasomatic type iron ores, 4 magmatic hydrothermal type iron ores and 8 magmatic type iron ores. There are 18 class A prospecting areas, 13 class B prospecting areas and 5 class C prospecting areas in the 36 iron ore prospecting area above. In the future exploration of various iron ore types, sedimentary metamorphic iron ore and contact metasomatic iron ore are the focus of future exploration. This study provides the deployment basis and exploration direction for the future iron ore prospecting work in the province. |
| HAO Xing-zhong,XIAO Ke-yan,WANG Qiao-yun,ZHU Xue-qiang,LI Ying-ping,ZHI Yun-bao,ZHANG Wen,ZHANG Zhi-gang,PENG Guan-feng,LIU Fang,LIU Bin-bin.2023.Metallogenic Regularity and Potential Analysis of Iron Ore in Shandong Province[J].Acta Geoscientica Sinica,44(5):834-848. |
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