| 地幔柱和地幔流体作用与深部找矿应用研究 |
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| 引用本文： | 刘显凡,刘家铎,张成江,吴德超,李佑国,阳正熙.地幔柱和地幔流体作用与深部找矿应用研究[J].地球科学进展,2004(Z1). |
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| 作者姓名： | 刘显凡 刘家铎 张成江 吴德超 李佑国 阳正熙 |
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| 作者单位： | [1]成都理工大学 [2]四川 [3]成都 |
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| 基金项目： | 中国地质调查局综合研究项目(编号:200110200046)资助 |
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| 摘 要： | 地球是一个复杂的系统,自形成以来,一直处于不停地运动、分异和演化过程;它不仅存在着圈层结构,而且伴随其自转和公转的离心力,以及核幔间的温度差、压力差、密度差、粘度差、速度差和放射性蜕变热等动热机制,同时存在着以地幔柱和地幔流体作用方式的物质垂向运动;这一过程,不仅直接向地壳带入核幔成矿物质,而且通过流体自身的超临界性质,将沿途活化已有初步富集的成矿物质转移至地壳适宜部位集中成矿。因此,大多与深大断裂有关的矿床,其成矿作用多与成矿物质的垂向运动密切相关,进而可能具备深部成矿的条件。研究从地幔柱和地幔流体作用入手,探讨了大型和超大型矿床形成的地球化学背景,揭示了开展深部找矿应用的前景。
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| 关 键 词： | 地幔柱 地幔流体 地球化学 超大型矿床 深部找矿 |
THE PROCESSES OF MANTLE PLUME AND MANTLE FLUID AND HTEIR APPLYING STUDY FOR THE DEEP PROSPECTING |
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| LIU Xian-fan,LIU Jia-duo,ZHANG Cheng-jiang,WU De-chao,LI You-guo,YANG Zheng-xi.THE PROCESSES OF MANTLE PLUME AND MANTLE FLUID AND HTEIR APPLYING STUDY FOR THE DEEP PROSPECTING[J].Advance in Earth Sciences,2004(Z1). |
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| Authors: | LIU Xian-fan LIU Jia-duo ZHANG Cheng-jiang WU De-chao LI You-guo YANG Zheng-xi |
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| Abstract: | The earth is a complicated system, and it has been continuously moving differentiating and evolving since it had been formed. Not only has the earth layering structure, but it has vertical movement of materials. The movement is prompted by the mechanism of force and heat of the centrifugal force to be formed by the rotation and revolution of the earth, and difference of temperature, pressure, density, viscosity and velocity in the between core and mantle, and radioactive heat, et al. The expressive means of the mechanism of force and heat are the precesses of mantle plume and mantle fluid. Not only are ore-materials of core and mantle carried directly into crust, but orematerials of crust are activated and accumulated into proper location by the mantle fluid having the supercritical nature. Therefore, in general, the mineralization of the deposits, which are controlled by the deep and huge fractures, are related closely to materials'vertical movement and maybe have the condition of ore-forming in deep. On the basis of the study in processes of mantle plume and mantle fluid, in this paper, geochemical background forming large and superlarge deposits are approached, and the protential reserve for deep prospecting are brought to light. |
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| Keywords: | Mantle plume Mantle fluid Geochemistry Superlarge deposits Deep prospecting |
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