| 初论成矿场与矿产勘查意义 |
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| 引用本文： | 魏俊浩.初论成矿场与矿产勘查意义[J].地质科技通报,2020,39(1):114-129. |
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| 作者姓名： | 魏俊浩 |
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| 作者单位： | 中国地质大学（武汉）资源学院 |
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| 基金项目： | 国家自然科学基金项目"辽宁五龙金矿田岩浆深部演化与金成矿作用:年代学及微区地球化学制约"41772071中国地质调查局项目"青海都兰沟里金矿整装勘查区矿产地质调查与找矿预测"DD20190159-05 |
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| 摘 要： | 成矿场是指地质历史时期某成矿地区引起岩石变形的应力场,承载成矿作用引起流体效应的流体场,以及成矿元素迁移、沉淀、富集、叠加改造形成的物质场的总称.分析了一个成矿地区应力场、流体场、物质场的空间关系、研究内容与研究方法.根据成矿背景、控制因素、成矿环境将其分为7类成矿场,即:逆冲(推覆)-后伸展构造背景成矿场、走滑-伸展(伸展-走滑)-后逆冲构造背景成矿场、中酸性火山(次火山)岩浆活动背景成矿场、基性-超基性岩浆活动背景成矿场、盆地裂谷-海底喷流环境成矿场、外生海相建造环境成矿场、外生陆相建造环境成矿场.对前5类成矿场(以内生矿产为主)进行了系统的内涵表述.在此基础上对前5类成矿场的矿产勘查过程中关键地质因素进行了归纳分析,这对具体矿产勘查工作具有现实的指导意义.
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| 关 键 词： | 成矿场 应力场 流体场 物质场 矿产勘查 |
| 收稿时间： | 2019-12-14 |
Preliminary discussion on the theory of ore-forming field and its significant role for mineral exploration |
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| Wei Junhao.Preliminary discussion on the theory of ore-forming field and its significant role for mineral exploration[J].Bulletin of Geological Science and Technology,2020,39(1):114-129. |
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| Authors: | Wei Junhao |
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| Institution: | (Faculty of Earth Resources,China University of Geosciences(Wuhan),Wuhan 430078,China) |
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| Abstract: | The ore-forming field is a geological term including the stress field that caused rock deformation in a certain ore-forming area, the fluid field that controlled the migration of ore-forming fluids, and the material field that consisted of migration, precipitation, enrichment and superimposition of ore-forming elements in a certain geological period.The spatial relations, research contents and research methods of stress field, fluid field and material field in a metallogenic area are studied.According to the metallogenic background, controlling factors and metallogenic environment, ore-forming field can be divided into seven types, namely thrust (nappe)-post extensional tectonic setting, strike slip-extensional (extensional-strike slip) tectonic setting, intermediate acid volcanic (subvolcanic) magmatism environment, mafic-ultramafic magmatism context, basin rift-submarine exhalation setting, exogenetic marine sedimentary formation environment, and exogenetic continental sedimentary formation context.The first five categories (dominantly endogenous mineralization) are systematically elaborated.The key geological factors in the mineral exploration process for these five types of ore forming fields are then summarized, which are important in guiding the specific mineral exploration work. |
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| Keywords: | ore-forming field stress field fluid field material field mineral exploration |
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