| 地壳结构与深部矿产资源立体探测技术实验——SinoProbe-03项目介绍 |
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| 引用本文：吕庆田,常印佛,SinoProbe-03项目组.2011.地壳结构与深部矿产资源立体探测技术实验——SinoProbe-03项目介绍[J].地球学报,32(S1):49-64. |
| DOI：10.3975/cagsb.2011.s1.04 |
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| 基金项目:国家专项“深部探测技术与实验研究”(编号: SinoProbe-03) |
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| 中文摘要:无论是成矿学研究, 还是资源勘查, 认识深部、精细了解深部十分重要。地壳、上地幔结构、物质和动力学过程是矿床形成和分布的一级控制因素, 是建立区域成矿理论的基础; 矿集区深部(0～10 km)结构、构造, 尤其是断裂、地层、岩浆岩的空间分布及相互关系是控制内生矿床形成的直接因素, 它们控制了成矿流体迁移、富集和沉淀过程; 矿田和矿区深部(0～2 km)精细结构是查明容矿、控矿构造深部延伸、进行深部成矿预测的关键, 对指导深部找矿具有重要意义。为了深入研究中国大陆成矿的构造背景、典型矿集区的成矿环境, 拓展深部找矿空间, 国家启动了《深部探测技术与实验研究(SinaProbe)》科技专项, 专项设立了“深部矿产资源立体探测技术及实验研究”项目, 主要目标任务是: 选择我国东部南岭、长江中下游成矿带及典型矿集区: 铜陵、庐枞、于都-赣县, 开展三个层次(40～50 km、10 km和2 km)的立体探测和浅表2 km的示矿异常钻探试验, 揭示代表性矿集区形成的深部构造背景、动力学过程及其对成矿系统形成和演化的制约; 精细刻画矿集区10 km结构框架和物质组成, 揭示成矿系统结构; 追踪主要容矿、控矿构造、含矿岩体的深部延伸, 拓展资源勘查深度, 指明深部找矿方向。开展典型矿床的3D地球物理探测, 研究深部控矿规律, 建立深部成矿模式, 开展深部成矿预测。开展2000 m钻探, 直接验证重要异常和成矿靶区, 揭示地壳浅层金属垂向变化规律, 建立深部勘查地球物理异常解释“标尺”, 提高对深部成矿规律的认识。通过示范研究, 形成三个层次深部资源探测的技术方案, 攻克若干技术难题, 建立研究基地, 培养研究团队, 取得样板性成果, 为“地壳探测工程”的顺利实施奠定技术基础 |
| 中文关键词:成矿带 矿集区 地壳结构 立体探测 成矿模式 |
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| Crustal Structure and Three-dimensional Deep Exploration Technology for Mineral Resources: An Introduction to SinoProbe-03 Project |
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| Abstract:In both mineralization study and resources exploration, the detailed understanding of the depth of the earth is very important. The structures, materials and dynamic processes of the Earth’s crust and the upper mantle are the first-order controlling factors in the formation of mineral deposits, and also constitute the foundation of the regional metallogenetic theory. The composition and structure of the deep part(0～10 km)of the ore concentration area, especially the spatial distribution and relationships of faults, strata and magmatic rocks are direct factors controlling the formation of endogenetic mineral deposits and govern the migration, enrichment and precipitation of the ore-forming fluids. The fine structures of the deep part of the orefield and ore district constitute the crux for finding out deep extension of the ore-hosting and ore-controlling structure and making deep ore prognosis, thus being of great significance in guiding deep ore-prospecting work. For the purpose of making a thorough study of the structural background of mineralization in China’s mainland and the ore-forming environment of typical ore concentration areas as well as expanding ore-prospecting space in the depth, China has started the special techno-logical project “Deep Exploration Technology and Experimentation (SinoProbe)”. Under this special project, the project “Three-dimensional Deep Exploration Technology and Experimentation for Mineral Resources” has been set up. The main targets and tasks of this project are as follows: Select Nanling, middle and lower Yangtze River metallogenetic belt and typical ore concentration areas (Tongling, Luzong, Yudu-Ganxian) in eastern China to conduct three-dimensional exploration at three levels ((40～50 km, 10 km and 2 km)as well as drilling test for shallow ore-indicating anomalies of 2 km so as to reveal deep structural background and dynamic process of the typical ore concentration area and their restricting role in the formation and evolution of the metalogenetic system; Depict structural framework and material composition of the ore concentration area in the depth range of 10 km so as to disclose the structure of the metallogenetic system; Trace deep extensions of main ore-hosting and ore-controlling structures and ore-bearing intrusive bodies so as to extend the depth of resources exploration and indicate ore-prospecting orientation in the depth; Carry out three-dimensional geophysical exploration of typical ore deposits so as to study deep ore-controlling regularity, establish deep metallogenetic model and conduct deep ore prognosis; Perform drilling to the depth of 2000 m so as to make direct verification of important anomalies and ore-forming targets, reveal vertical variation regularity of metals in the shallow part of the Earth’s crust and estab-lish the scale for deep exploration geophysical interpretation, and deepen the understanding of metallogenic regu-larity; Through demonstration study, form technological plan for deep resources exploration at three levels, solve a number of technological thorny problems, establish research base areas, train the research group and acquire model achievements, so as to lay the technological foundation for the successful implementation of the “Earth’s Crust Exploration Engineering”. |
| keywords:metallogenetic belt ore concentration area crustal structure three-dimensional exploration ore- forming model |
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