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hydrothermal metallogeny
相关语句
  热液成矿
     THE POLYGENETIC HYDROTHERMAL METALLOGENY
     热液成矿多元论
短句来源
     THE SILICA BRIDGE PROBLEM WITH SPECIAL REFERENCE TO CONCEPT CHANGES IN HYDROTHERMAL METALLOGENY
     硅桥问题——兼及当代热液成矿理论的概念更新
短句来源
     Theory of orogenic gold deposit was put up. New evidence for magmatic and metamorphic hydrothermal metallogeny has been found, that is magmatic fluid exists more popularly during gold metallogenic process.
     岩浆热液和变质热液成矿理论获得了新的证据,在金矿成矿作用过程中岩浆流体较普遍存在,变质去挥发分作用所产生的大量热液是金矿成矿所需的低盐度流体。
短句来源
     The average grade of gold is up to 20.70 ~~~~~~~~~~~~ 10 - 6 . The ore deposit, belonging to altered hydrothermal gold deposit in nature formed by diagenism and postmagmatic hydrothermal metamorphism, is formed in 4 periods, volcanic sedimentary period,regional metamorphism period,tectonic metallogeny period,and magma hydrothermal metallogeny period.
     品位较高,矿床平均品位达20.70×10-6。 矿床形成经历了火山沉积期、区域变质期、构造热液成矿期及岩浆热液成矿期4个阶段,属沉积变质-岩浆期后热液叠加改造的变质热液金矿床。
短句来源
  热液成矿学说
     THE SIGNIFICANT RESEARCH PROGRESS OF THE SOURCE OF HYDROTHERMAL SOLUTION AND “TRIPLE-SOURCE”METASOMATIC HYDROTHERMAL METALLOGENY
     热液源研究的重要进展和“三源”交代热液成矿学说
短句来源
  “hydrothermal metallogeny”译为未确定词的双语例句
     HYDROTHERMAL METALLOGENY OF THE SHANGGONG GOLD DEPOSIT,EAST QINLING:RADIOGENIC ISOTOPE GEOCHEMISTRY
     东秦岭上宫金矿流体成矿作用:放射成因同位素地球化学研究
短句来源
     SILICA ENIGMA AND IGNORANCE IN ALKALI——TWO NEGLECTED PROBLEMS IN MODERN HYDROTHERMAL METALLOGENY
     硅谜与碱盲——近代热液成矿学的两大暗区
短句来源
     SUBVOLCANIC HYDROTHERMAL METALLOGENY OF THE CIHAI IRON(COBALT)DEPOSIT,XINJIANG
     新疆磁海铁(钴)矿床次火山热液成矿学
短句来源
     OVERPRESSURED FLUIDS IN FAULT ZONES AND THEIR ROLES IN EARTHQUAKE AND HYDROTHERMAL METALLOGENY
     断层带中超压流体及其在地震和成矿中的作用
短句来源
     HYDROTHERMAL METALLOGENY OF THE SHANGGONG GOLD DEPOSIT,EAST QINLING:STUDIES ON ORE GEOLOGY AND FLUID INCLUSION GEOCHEMISTRY
     东秦岭上宫金矿流体成矿作用:矿床地质和包裹体研究
短句来源
更多       
  相似匹配句对
     THE POLYGENETIC HYDROTHERMAL METALLOGENY
     热液成矿多元论
短句来源
     Metallogeny
     成矿学
短句来源
     SUBVOLCANIC HYDROTHERMAL METALLOGENY OF THE CIHAI IRON(COBALT)DEPOSIT,XINJIANG
     新疆磁海铁(钴)矿床次火山热液成矿学
短句来源
     ON HYDROTHERMAL ROCK
     关于热液岩
短句来源
     Hydrothermal Eruption
     水热爆炸
短句来源
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  hydrothermal metallogeny
Structural control and history of origin of hydrothermal metallogeny in western Cuba
      


The source of hydrothermal solutions is one of the cruxes of the genesis of hy-drothermal deposits. In the past, as one of the important reasons,because of lack of effec-tive means to study the source of hydrothermal fluids the genesis of hydrothermal depositshas been a problem long in dispute.In the last 30 years the rapid development of high-pre-cise and rapid analytical techniques enable us to create reliable methods to determine thesources of hydrothermal solutions and ore-forming elements.Following methods...

The source of hydrothermal solutions is one of the cruxes of the genesis of hy-drothermal deposits. In the past, as one of the important reasons,because of lack of effec-tive means to study the source of hydrothermal fluids the genesis of hydrothermal depositshas been a problem long in dispute.In the last 30 years the rapid development of high-pre-cise and rapid analytical techniques enable us to create reliable methods to determine thesources of hydrothermal solutions and ore-forming elements.Following methods are usu-ally used:(1) determination (or calculation) of δ ̄(18)O and δD of hydrothermal solution;(2) δ ̄(18)O variations of country rocks;(3) relationship between the geographic position ofhydrothermal deposits and the δ ̄(18)O and δD compositions of hydrothermal fluids;(4) com-positions of fluid inclusions;(5)relationship between the distribution of hydrothermal de-posits and the water content of country rocks;(6) variation of ore-forming elements incountry rocks.Utilizing the above-mentioned methods a series of important results on thesources of hydrothermal solutions have been obtained.On the basis of above studies,aheat-driven convective circulation metallogenic model was proposed,which has been pro-ceed to the “triple-source” metasomatic hydrothermal metallogeny.According to this the-ory,new prognostic criteria and metallogenic regularity have been established which havebeen used successfully in the ore prospecting practise.However,research in this field isstill at the beginning stage,many important metallogenic problems need to be solved.

热液来源在很大程度上决定了热液矿床的成因。过去由于缺乏研究热液来源的有效手段使矿床成因长期争论不休。近30年来,热液水和成矿物质来源都有较好的测定方法,如热液的δ ̄(18)O、δD的测定,根据围岩的δ ̄(18)O变化、热液矿床的地理位置与热液水的δ ̄(18)O和δD的关系、流体包裹体的成分、矿床分布与围岩含水性的关系等确定热液水的类型和来源,根据围岩中成矿金属含量的变化而确定矿质来源等。这样在热液来源方面取得了一系列重要成果,在此基础上提出了热驱动对流循环成矿模式,进而发展为“三源”交代热液成矿学说。并根据新学说总结出新的成矿规律,建立了新的在实践中有明显效果的预测方法。但这方面的研究还刚刚开始,许多重要的成矿问题尚待研究。

It is well known that the binary diagram of silicate-water and the residual magma-solution illustrated and proposed by Niggli are the theoretical basis of post-magmatic hydrothermal metallogeny. Based on recent experimental data on the silicate-water system, the calculation results derived from the experiments and the geological facts, it can be proved that Niggli's binary diagram of silicate-water and the vapor tension curve in the process of evolution of magma are unreasonable. The fact is that the miscibility...

It is well known that the binary diagram of silicate-water and the residual magma-solution illustrated and proposed by Niggli are the theoretical basis of post-magmatic hydrothermal metallogeny. Based on recent experimental data on the silicate-water system, the calculation results derived from the experiments and the geological facts, it can be proved that Niggli's binary diagram of silicate-water and the vapor tension curve in the process of evolution of magma are unreasonable. The fact is that the miscibility between silicate and water is not unlimited. The crystallization process is terminated at the solidus and before reaching the solidus the surplus water escapes in the vapor state from the magmat therefore, the evolution process can not produce residual solutions in which water is the main component. From the above discussion the conclusion can be reached that Niggli's binary diagram is groundless and that residual magma solution is inexistent.Consequently, post-magmatic hydrothermal metallogeny is without foundation.

根据岩浆与水的有限混溶,含水岩浆结晶都以固相线温度告终或当固相线温度时未结晶的岩浆全部共结,且岩浆中超过饱和度的多余水在共结前均呈水气相释放。笔者认为,含水岩浆结晶时,在结晶期或结晶期前释放出水气相,并可能成为热液,但不生成由岩浆结晶逐渐演化而成以水为主的残余溶液。因此,尼格里推断的硅酸盐-水的二元相图依据不足,“残余溶液”是不存在的。所以,岩浆期后热液成矿理论也是缺乏基础的。

The influences of overpressured fluids on mechanical and chemical processes in faults are very important. Based on the summary of the former research accomplishments, discussion is given in this paper on evidences and mechanism for overpressure of fluids in faults and their relation to earthquake and hydrothermal metallogeny. The following conclusions are induced from the present related information and theory knowledge. The overpressured fluids located in faults are formed by tectonic compaction of country...

The influences of overpressured fluids on mechanical and chemical processes in faults are very important. Based on the summary of the former research accomplishments, discussion is given in this paper on evidences and mechanism for overpressure of fluids in faults and their relation to earthquake and hydrothermal metallogeny. The following conclusions are induced from the present related information and theory knowledge. The overpressured fluids located in faults are formed by tectonic compaction of country rock sourced fluids and injection of high pressured fluids from depth, under the precondition that the permeability structures are varied greatly in time and space. When the fluid pressures rise to a threshold, the catastrophic ruptures are broken out, that is earthquake, creating high permeability in the fault zone. Simultaneously, the overpressured fluids quickly flow to low pressured places, and a lot of aqueous soluble species, including metallogenic materials, are precipitated from the flowing fluids, resulting from dramatically dropping of fluid pressures and resulting in decreasing of permeability of the fault zone. These processes can be circulated by alternatively running of the seismic pumping and the fluid overpressure mechanism.

地震断层带中局部存在对其力学和化学过程有着重要影响的超压流体 ,对这种超压流体的证据、超压机制及其在地震活动和成矿中的作用等进行了探讨。流体超压是在断层带中渗透性构造发生强烈时空变化的前提下产生的 ,其主要原因是构造加压及深源高压流体的注入。当流体压力升至一临界值时 ,断层发生灾难性破裂 ,即地震 ,增加断层的渗透性 ,超压流体快速向低压带 (室或域 )流动 ,同时因减压流体所携载水溶物种 (包括成矿物质 )大量沉淀析出 ,降低断层带的渗透性。地震泵吸和流体超压机制的交替作用使得这一过程得以周期性地进行。

 
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