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characteristics of deposits    
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  特征的矿床
    In general, the mineral deposition is a complex nonlinear dynamic process. Minerals in hydrothermal system will finally deposit at appropriate place through a complex nonlinear feedback effect among the structural stress, fluid flow and fluid-rock reaction and lead to the fractal and chaotic characteristics of deposits and grade distribution.
    总之 ,成矿物质的沉淀过程是一个复杂的非线性动力学过程 ,矿物在热液体系中通过构造应力、流体流动、流体岩石反应等之间的复杂非线性反馈作用 ,最终在合适部位沉淀下来 ,形成了各种具分形与混沌特征的矿床和品位分布
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  characteristics of deposits
By studying characteristics of deposits under various deposition conditions, we confirmed that the best conditions of manufacturing catalyst support are a lower pressure and a lower concentration.
      
Relationship between magnetic fabric parameters and dynamic characteristics of deposits in different environments
      
This paper reports specific mineralogical and geochemical characteristics of deposits from the local depressions of the Derugin Basin.
      


The important occurrence places of Sb deposits of Yunnan province are in Southeast Yunnan. These Sb deposits can be put into two forms of stratoid and vein-like occurrence.They belong to the sedimentary-intensively transformed stratabound deposit according to the origin of metallogenic material, metallogenesis form, formation of wall-rock and ore,distribution characteristics of deposit. The commercial Sb deposits are only occurred in a fixed period, horizon and favourable lithologic...

The important occurrence places of Sb deposits of Yunnan province are in Southeast Yunnan. These Sb deposits can be put into two forms of stratoid and vein-like occurrence.They belong to the sedimentary-intensively transformed stratabound deposit according to the origin of metallogenic material, metallogenesis form, formation of wall-rock and ore,distribution characteristics of deposit. The commercial Sb deposits are only occurred in a fixed period, horizon and favourable lithologic character assemblage; the metallogenic material is merely formed in a specified sedimentary environment; the structure is the important condition of distribution, transformation and concentration of Sb ore; and the Sb metallogenesis concentration is closely correlated with silicification alteration. According to the established ore-prospecting model of "strata, lithologic charater, lithologic facies,structure, alteration", the best tape and oreprospecting area of Sb deposit are put forward in this paper.

滇东南是云南省重要的锑矿产地。矿床可划分为似层状和脉状两种产出形式。根据成矿物质来源、成矿作用方式、围岩和矿石建造、矿床分布特征,属沉积-强烈改造层控矿床。具工业意义的锑矿床只产于一定时代、层位和有利的岩性组合内;成矿物质只在特定的沉积环境中形成;构造是锑矿分布、改造富集的重要条件;硅化蚀变与锑矿化富集密切相关。根据拟建的“地层、岩性、岩相、构造、蚀变”的找矿模式,提出了锑矿找矿的最佳类型和最佳找矿地段。

After detailed geological prospecting and evaluation on Zhangyan copper deposit, the level of investigation on the geological characteristics of deposit has been raised. At the time to continue affirming the ore-generation of deposit has been controlled strictly by the contact belt between granodiorite body and Jinshan group,the layer of out-contact belt i. e. Jinshan group represented as a main ore-bearing rock-layer, has been divided in detail. The structure form of Jinshan group has been...

After detailed geological prospecting and evaluation on Zhangyan copper deposit, the level of investigation on the geological characteristics of deposit has been raised. At the time to continue affirming the ore-generation of deposit has been controlled strictly by the contact belt between granodiorite body and Jinshan group,the layer of out-contact belt i. e. Jinshan group represented as a main ore-bearing rock-layer, has been divided in detail. The structure form of Jinshan group has been set up. The roles represented by component rock kinds of Jinshan group in ore-generation have been also collected in detail.

通过详查评价,提高了对矿床地质特征的研究程度。在继续肯定矿床的成矿严格受张堰花岗闪长岩体与金山群的接触带控制的同时,对矿床的主要赋矿地层即外接触带金山群的分层,构造及其各类岩性组成在成矿过程中的作用进行了详尽的厘定。金山群自上而下由上角岩段,矽卡岩段和下角岩段组成。矽卡岩又有钙质和镁质之分,钙质矽卡岩为主要成分,而薄层的镁质矽卡岩则稳定而断续地夹生于钙质矽卡岩之间。百家村矿段西部的金山群构成一个近乎直立的紧密背斜构造。钙质矽卡岩是主要的容矿层位,矿体的形态和产状与钙质矽卡岩完全一致。镁质矽卡岩不含矿,在矿化矽卡岩中起着隔离层的作用。上、下角岩段在成矿过程中对矿液起着屏敝层的作用。张堰铜矿床的成因应归属于与中酸性岩浆的侵入活动有关的接触交代矽卡岩型矿床,具有较明显的层控特征。

Along with the development of China's nuclear power undertaking, the guarantee for uranium resources will increasingly be in an urgent need. Here the guarantee for uranium resources referred to should include both quantity and benefits, and the superlarge uranium deposits can simultaneously meet the demand of these two aspects, Therefore, to prospect forthe superlarge uranium deposits in China is an urgent task. In order to establish theprospecting targets, the author attempts to present a classification...

Along with the development of China's nuclear power undertaking, the guarantee for uranium resources will increasingly be in an urgent need. Here the guarantee for uranium resources referred to should include both quantity and benefits, and the superlarge uranium deposits can simultaneously meet the demand of these two aspects, Therefore, to prospect forthe superlarge uranium deposits in China is an urgent task. In order to establish theprospecting targets, the author attempts to present a classification scheme of the superlargeuranium deposits which integrates the geological occurrence characteristics of deposit withthe economic benefits, and three types with 13 sub-types have been distinguished. Based onChina's specific situation, the author cogsiders that three out of seven prospective types arethe most hopeful to be proven in China, that is, Ⅰ -2, Ⅱ -1 and Ⅲ-5,especially the Ⅲ-5. Atlast, with reference to the foreign experience in prospecting for superlarge uranium deposits,the author has proposed four points of opinions on the strengthen.ing the exploration forChina's superlarge uranium deposits.

随着核电事业在我国的发展,对铀资源保证的要求将越来越迫切。这里所指的铀资源保证应包含数量和效益两层意思,而超大型铀矿床则能同时满足对这两方面的要求。因此,在我国寻找超大型铀矿床是一项刻不容缓的任务。为了确立找矿目标,作者尝试提出了一种将矿床产出地质特征和经济效益相结合的超大型铀矿床分类方案,共划分出3大类13个亚类。结合我国情况,作者认为在7个有远景的类型中,有3个(即Ⅰ-2、Ⅱ-1和Ⅲ-5)在我国最有突破的希望,特别是Ⅲ-5。最后,作者参考国外超大型铀矿床的找矿经验,对于加强我国对超大型铀矿床的探索提出了四点具体意见。

 
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