| 解洪晶,王玉往,石煜,周明磊,朱裕振.山东省齐河—禹城地区矽卡岩型铁矿地质特征及“三位一体”地质模型构建[J].矿产勘查,2025,16(5):1006-1016 |
| 山东省齐河—禹城地区矽卡岩型铁矿地质特征及“三位一体”地质模型构建 |
| Geological characteristic and "Trinity" prospecting prediction model of the skarn Fe deposits in Qihe-Yucheng area, Shandong Province |
| 投稿时间：2025-03-26 |
| DOI：10.20008/j.kckc.202505006 |
| 中文关键词: 铁矿 地质特征 找矿预测模型 齐河—禹城地区 |
| 英文关键词: iron deposit skarn type geological characteristics "Trinity" prospecting prediction model Qihe-Yucheng area |
| 基金项目:本文受中国地质调查局地质调查项目(DD2016005220)资助。 |
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| 中文摘要: |
| 齐河—禹城地区矽卡岩型铁矿床位于鲁西地区，是近几年勘查发现的深隐伏磁铁矿床。本文通过对该区铁矿详细的钻孔编录及系统研究发现，齐河—禹城地区矽卡岩型铁矿主要赋存于闪长岩与上覆奥陶系灰岩、大理岩/石炭系—二叠系砂岩、粉砂岩地层接触带。矿床的成矿地质体为闪长岩，控矿构造主要为接触带构造和断裂构造。矿床具有明显的蚀变分带特征，从成矿地质体闪长岩到矿体，再到围岩，矿化分带为新鲜闪长岩—透辉石化/钠长石化闪长岩—内矽卡岩—矿体—外矽卡岩—大理岩/粉砂岩。通过对该区铁矿床的详细研究，建立了本区矽卡岩型铁矿的“三位一体”地质模型，研究成果可为该区矽卡岩型铁矿的找矿勘查提供理论依据。 |
| 英文摘要: |
| The skarn-type iron ore deposit in the Qihe-Yucheng, which belong to deep concealed deposits anddiscovered in recent years, are located in western Shandong Province. Through the detailed borehole cataloging and comprehensive research, we concluded that the iron orebodies are hosted in the contact zone between diorite and theoverlying Ordovician limestone and marble/Carboniferous-Permain sandstone and siltstone strata. The metallogenicgeological bodies of the deposits are diorite. The ore controlling structure of the deposits are mainly contact belt struc.ture and fracture structure. The deposits have obvious alteration zoning characteristics from metallogenic geological body to stara: fresh diorite-diopside/albite diorite-inner skarn-orebody-external skarn-marble/siltstone. Through thedetailed study of the iron ore deposits, we establish the "Trinity" prospecting prediction model of skarn type iron oresin this area to provide theoretical basis for the exploration and prospecting of skarn type iron deposits in this area. |
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