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成矿作用     
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  mineralization
    The Yanshanian Granitoids and Their Cosmical Mineralization Interaction in Poly Metallogenic Deposit-Concentrated, Area in Southeastern Hunan
    湘东南多金属矿集区燕山期花岗岩类及其大规模成矿作用
短句来源
    URANIUM MINERALIZATION OF GEOTHERMAL GROUNDWATER AND DISSIPATIVE STRUCTURE
    热水铀成矿作用的耗散结构
短句来源
    Discussion on the Some Mineralization Problems of Pucheng-Sanduao Metallogenic Belt in Fujian Province
    福建浦城-三都澳成矿带几个成矿作用问题的探讨
短句来源
    A STUDY ON GEOLOGICAL BACKGROUND,GEOLOGICAL CONDITIONS AND GOLD MINERALIZATION IN THE NORTH HUAIYANG REGION,ANHUI PROVINCE
    安徽北淮阳地区金成矿地质背景地质条件和成矿作用
短句来源
    GEOCHEMICAL STUDY OF MINERALIZATION ON EPITHERMAL An, Sb, Hg ORE DEPOSITS IN THE WEST OF HUNAN PROVINCE
    湘西低温An、Sb、Hg矿床成矿作用地球化学研究
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  metallogeny
    METALLOGENIC SERIES OF MAIN ORE DEPOSITS AND REGIONAL METALLOGENY IN NORTH QILIAN MOUNTAINS
    北祁连地区主要金属矿床成矿系列及区域成矿作用
短句来源
    On sublatitudinal mesozoic volcanic belts in China and their uranium metallogeny
    中国近东西向中生代火山岩带及其铀成矿作用
短句来源
    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
    ~(40)Ar/~(39)Ar Geochronology of the Tongshankou Cu (Mo) Deposit in the Southeastern Hubei Fe-Cu Province: Implications for Regional Metallogeny
    鄂东南铁铜矿集区铜山口铜(钼)矿床~(40)Ar/~(39)Ar年代学及对区域成矿作用的指示
短句来源
    Discussion on the relationship of magmatism and gold metallogeny in Beishan mountain area
    北山地区岩浆活动与金矿成矿作用关系探讨
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  metallization
    THE RELATIONSHIP OF URANIUM METALLIZATION WITH CRUSTAL EVOLUTION IN SOUTHEASTERN CHINA AND THEIR PROSPECTIVE ANALYSIS
    华南东部铀成矿作用与陆壳演化的关系及其远景分析
短句来源
    ANALYSIS OF POLYGENETIC COMPOUND METALLIZATION OF XIAOQINLING GOLD ORE FIELD
    小秦岭金矿田多因复成成矿作用过程分析
短句来源
    DUCTILE SHEAR ZONE AND GOLD METALLIZATION IN THE SAHENTUOHAI-DASHANKOU METALLOGENIC BELT,SOUTHERN TIANSHAN,CHINA
    中国南天山萨恨托亥-大山口成矿带韧性剪切带与金成矿作用
短句来源
    Preliminary Study on Metallization of Dongsheng U Ore in Ordos Basin
    鄂尔多斯盆地东胜铀矿成矿作用研究
短句来源
    Three relatively isolated metallogenic subsystems formed in their own tectonic regimes. The main metallogenesis of island arc metallogenic subsystem (280Ma, U-Pb; 291.33+2.54Ma, Ar-Ar) is the contact metasomatic type Cu metallization and its possible metallogenesis is volcanic hydrothermal type Cu, Pb-Zn metallization;
    江达构造带不同构造体制下的成矿作用分别构成了三个相对独立的成矿体系:岛弧成矿体系(成岩-成矿定年:280Ma,U-Pb:291.33±2.54Ma,Ar-Ar)的成矿作用主要表现为接触交代型Cu矿化,并可能存在火山热液型Cu、Pb-Zn矿化;
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  the mineralization
    Isotopic Chronological study shows that the fluid inclusion Rb-Sr isochron age (346±30Ma) of mineralized quartz veins is consistent with zircon U-Pb age (340Ma-360Ma) of quartz porphyry in test errors, showing that diagenetic and mineralization events happened during Early Carboniferous to Late Devonian and the mineralization is temporospatially related to the porphyry.
    年代学研究表明,含矿石英脉石英流体包裹体Rb—Sr等时线年龄(346±30Ma)与石英斑岩的锆石U—Pb年龄(340Ma-360Ma)在测定误差范围内一致,表明成岩与成矿作用均发生在早石炭世—晚泥盆世,成矿作用无论从空间上和时间上都与石英斑岩有关。
    The Mineralization of Organism and Organic Matter in the Laerma Gold Deposit
    拉尔玛金矿生物-有机质成矿作用
短句来源
    New understanding of the mineralization of Kuslap Gold Deposit in west Kunlun Mountain Region
    新疆西昆仑地区库斯拉甫金矿成矿作用新认识
短句来源
    2 Jianchaling south ore belt mineralization solution along with mineralization carrying on, the mineralization system from by H_2O-CO_2-KCl primarily hydrothermal system to by H_2O-CO_2-NaCl primarily hydrothermal system transformation.
    2.煎茶岭金矿床南矿带成矿溶液随着成矿作用的进行,成矿体系从以H_2O—CO_2—KCl为主的热液体系向以H_2O—CO_2—NaCl为主的热液体系转化。 与北矿带的演化趋势相似,从初期的氧化、中性溶液向晚期的还原、弱酸性溶液变化,有利于金的沉淀富集。
短句来源
    The study of lead isotope features and minor element components of known massive sulfide deposits shows that the isotope model and systematic rock & ore samples can reflect the mineralization evironments and metallogenic process, and can be used to qualitatively assess the geochemical anomaly.
    本文通过对多处以火山碎屑岩或沉积岩为容矿岩石的块状硫化物型矿床上方岩矿石样品中铅同位素组成特征的研究,总结了不同成因类型矿床铅同位素组成模式及与成矿元素异常之间的关系,指出对于系统采集的岩矿石样品,铅同位素组成能较好的反映成矿环境和成矿作用,对异常起到定性评价作用。
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  mineralization
Potential rates of microbial P immobilization were greater than those of organic P mineralization in mineral soils for both forests.
      
The decomposition study showed that A450 exhibited significantly higher decomposition rate, mineralization rates of N, P and K as well as much shorter N and P net immobilization periods.
      
They show potential as carriers for drug controlled delivery and templates for biomimetic mineralization.
      
Effects of pH and initial Ca2+-H2PO4- concentration on fibroin mineralization
      
In the present study, the effects of pH and initial Ca2+-H2PO4- (Ca-P) concentration on fibroin mineralization were studied.
      
更多          
  metallogeny
Geochemistry and Metallogeny of Phosphorus in the Russian Platform during the Jurassic-Cretaceous
      
The composition and metallogeny of igneous rocks and relevant weathering crusts of Jurassic-Cretaceous provenances of the Russian Platform are considered.
      
The presented overview of hypergene metallogeny of the Urals is largely based on original data of the author.
      
Geoblocks in the basement of ancient continental platforms, their internal divisibility, and metallogeny of ore districts based
      
The study of problems of gold metallogeny was initiated in Russian geological science by Yu.A.
      
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  metallization
Simulation of the metallization of a fragment of a deoxyribonucleic acid molecule with gold nanoparticles
      
Qualitative gas dynamic model of the laser-electric metallization of holes in dielectrics
      
A gas dynamic model of the laser-electric hole metallization process is considered.
      
The values of metallization pressure are calculated for both infinite crystals and nano-size samples.
      
The dimensional dependence of metallization pressure is revealed, namely, the dependence of the value of phase transition pressure on the initial size of crystal.
      
更多          
  the mineralization
The conditions for the mineralization of biological materials were optimized for autoclave and microwave sample preparation procedures.
      
The conditions for the mineralization of biological materials were optimized for autoclave and microwave sample preparation procedures.
      
The mineralization of bacterial organic matter in the groundwater of Iceland is discussed.
      
The mineralization is most complete in the upper elementary cycles of each eruptive meso- and megacycles.
      
The mineralization is related to the percolation of reduced mantle fluids into upper levels of the crust at early stages of riftogenesis, their inversion in the crust, and redeposition of oreforming elements.
      
更多          
  其他


The pyritic lead-zinc depcsits of Chishiashan in the Nanjing Hills, some 20 KM. east of Nanjing of the Kiangsu province, discovered in 1950, have long been thought to be undoubtedly epigenetic and hydrothermal in origin. The writers recently studied the deposits in detail. They are much interested when they find out different sorts of framboidal pyrite in the concretionary and also in the laminated ores of the deposits. Some of the framboidal pyrite have distinct cellur structures of fossilized tissues of algae,...

The pyritic lead-zinc depcsits of Chishiashan in the Nanjing Hills, some 20 KM. east of Nanjing of the Kiangsu province, discovered in 1950, have long been thought to be undoubtedly epigenetic and hydrothermal in origin. The writers recently studied the deposits in detail. They are much interested when they find out different sorts of framboidal pyrite in the concretionary and also in the laminated ores of the deposits. Some of the framboidal pyrite have distinct cellur structures of fossilized tissues of algae, and some can be identified to be Solenapora. The framboids are now made up mainly of pyrite and melnikovite. The interstices between the "cels" are mostly filled with organic matter. The internal structures of the cellular tissues are of two kinds: (1) the cells, about 20μ in size, are arranged in radiating siphon-like bodies, and (2) the cells, of 40 to 60μ in sizes, are orderly arranged. Associated with the iron sulphide framboids, there are also some metacolloidal structures composed of marcasite and wurtzite. It is probable that, the sulphides were formed when the decaying biogenic protoplasm occurred in the presence of sulphur-reducing bacteria to produce HS_-, which combined with Fe~(++) to yield framboidal melnikovite and its recrystallized product, pyrite. Therefore, they were formed by biochemical processes, as a result of syngenetic sedimentation and early-diagenetic products. The ore bodies are mostly stratiform, stratoid, or in large lenticular forms. The ores are laminated, banded, or in concretioary layers. These structures of the ore bodies are in the main parallel to the stratification of the country rocks. Such kind of ore will constitute the main industrial ores of this distrier. The age of the ore formation belongs to the early to middle Carboniferous period. But, there are also evidently hydrophermal effects which are superimposed upon the syngenetic ore-forming processes, resulting in the formation.

我们详细地研究了南京栖霞山铅锌硫矿床。特别有意义的是在结核状、层纹状矿石内发现了各种各样的草莓状黄铁矿。经研究藻类的专家鉴定,其中有些具藻类化石的细胞组织,有些具管孔藻类化石的细胞组织。它们主要是由黄铁矿和胶黄铁矿组成。其细胞的间隙常为有机质所充填。但其内部结构特征是:(1)由粒径约20μ的细胞排列成管状放射体;(2)主要由粒径自40—60μ的细胞有序地排列。其生成可能是当生物原生质腐烂时,遂发生硫还原细菌产生HS~-。这种HS~-与Fe~(2+)相结合生成草莓状黄铁矿。因此,它们是生物化学作用的产物,是同生沉积——早期成岩阶段的结果。与之伴生的还有变胶状构造。这类矿石将成为本区主要的工业矿体。其生成时代属早——中石炭世。矿体呈层状、似层状或大透镜体。其产状与围岩基本上是一致的,但局部有斜交(热液迭加的结果)。但本区也有明显属后生的脉状、网脉状、浸染状及晶簇状矿石。它们往往具有显著的充填交代特征。此中普遍地表现为闪锌矿交代黄铁矿,方铅矿交代闪锌矿。其产出常与断裂构造及硅化、重晶石化具有密切的关系。显然,这是多期多阶段热液迭加的成矿现象。本区的铅锌矿,主要与这种成矿作用有关。因此,本区的矿石是由同生...

我们详细地研究了南京栖霞山铅锌硫矿床。特别有意义的是在结核状、层纹状矿石内发现了各种各样的草莓状黄铁矿。经研究藻类的专家鉴定,其中有些具藻类化石的细胞组织,有些具管孔藻类化石的细胞组织。它们主要是由黄铁矿和胶黄铁矿组成。其细胞的间隙常为有机质所充填。但其内部结构特征是:(1)由粒径约20μ的细胞排列成管状放射体;(2)主要由粒径自40—60μ的细胞有序地排列。其生成可能是当生物原生质腐烂时,遂发生硫还原细菌产生HS~-。这种HS~-与Fe~(2+)相结合生成草莓状黄铁矿。因此,它们是生物化学作用的产物,是同生沉积——早期成岩阶段的结果。与之伴生的还有变胶状构造。这类矿石将成为本区主要的工业矿体。其生成时代属早——中石炭世。矿体呈层状、似层状或大透镜体。其产状与围岩基本上是一致的,但局部有斜交(热液迭加的结果)。但本区也有明显属后生的脉状、网脉状、浸染状及晶簇状矿石。它们往往具有显著的充填交代特征。此中普遍地表现为闪锌矿交代黄铁矿,方铅矿交代闪锌矿。其产出常与断裂构造及硅化、重晶石化具有密切的关系。显然,这是多期多阶段热液迭加的成矿现象。本区的铅锌矿,主要与这种成矿作用有关。因此,本区的矿石是由同生沉积——热液迭加形成的。

This paper deals with some results of laboratory studies of rich ironore deposits of Hanxing type. The experiments are based on the geoloical investigation and researth of inclutions in minerals of the iron deposits. On the Hanxing iron-ore deposit the contact-metascmatic genesis of ore deposition associates paragcnetically with a strong albitization. Experiment data indicates that the albitization solution can be more concentrated Nacl neutral solution. Under the actions of these solutions, during albitization...

This paper deals with some results of laboratory studies of rich ironore deposits of Hanxing type. The experiments are based on the geoloical investigation and researth of inclutions in minerals of the iron deposits. On the Hanxing iron-ore deposit the contact-metascmatic genesis of ore deposition associates paragcnetically with a strong albitization. Experiment data indicates that the albitization solution can be more concentrated Nacl neutral solution. Under the actions of these solutions, during albitization or somewhat afterwards, the solutions can extract, and carry off abundant iron from the dioritic rocks. In accordance with this it is supposed that the iron transport by solutions is accomplished in the form of complex compounds of the double salt type. Apparently, chlorine and sodium was the main carrier of iron originated after interaction between the dioritic intrusions and salt-bearing strata. The iron deposition occurs as a result of the reaction of these solutions with carbonate rocks. The enrichment of solutions in Ca in consequence of iron exchange reactions lead to the decomposition of complex compounds and magnetite deposition. Under the conditions at temperatures about 400℃ and pressures of 500 b in a neutral higher salinitic solution the rich magnetite ore is formed.

本文列述了对邯邢式富铁矿形成条件的高温高压摸拟实验所获得的初步资料。根据矿床地质和实验结果来看,本类矿床的成矿溶液是以氯化钠为主的含盐度较高的中性或中偏酸性的气成高温溶液。铁质的最重要来源是由于碱卤蚀变而导致从闪长岩类析出的,成矿溶液中呈复盐络合物形式进行迁移的铁,于400℃、500巴左右的条件下与碳酸盐类岩石不断交代反应而形成磁铁矿富矿石。成矿作用中所需的大量的钠和氯,有很大一部分系来自含盐地层。找矿时应考虑本类矿床形成的综合因素。

At the Jishan mining area there are four major groups of igneous rocks. 1) volcanic breccia, 2) upper andesites, 3) lower andesites and 4) composite intrusive diorite porphyrites. At the central part of the mine, there is a volcanic explosion breccia in the lower andesite with an isotopic age of 121.4—118.4m.y.. The breccia pipe boundaries are characterized by undisplaced shattered or brecciated rock that gradually changes outward to the lower andesite. The explosion breccia consists of blocks of country rock...

At the Jishan mining area there are four major groups of igneous rocks. 1) volcanic breccia, 2) upper andesites, 3) lower andesites and 4) composite intrusive diorite porphyrites. At the central part of the mine, there is a volcanic explosion breccia in the lower andesite with an isotopic age of 121.4—118.4m.y.. The breccia pipe boundaries are characterized by undisplaced shattered or brecciated rock that gradually changes outward to the lower andesite. The explosion breccia consists of blocks of country rock andesite, varying in size from one centimeter to several meters in diameter; these blocks are embedded in a matrix of finely comminuted rock-or mineral fragments. In. the center of the breccia body, the blocks are sharply angular and obviously displaced or rotated, but in the marginal portions they are polygonal and scarcely displaced. The andesits matrix of breccia has been metasomatically altered to marialite, albite, ripidolite, magnetite, carbonates, and so forth. According to drilling record, the shape of the explosion breccia body is like a trumpet is widest at top and narrows down toward the bottom. The central part is occupied by explosion breccia, while the marginal parts are shattered rock zones formed during the explosions. The formation of the iron ore deposit is mainly controlled by the explosion breccia pipe and the surrounding shattered zones. However, due to the difference in fracture conditions, the ore body inside the explosive pipe has greater depth and stonger mineralization, while the shattered zones on outer side of the pipe is only weekly mineralized and the ore bodies are of limited depths. The margins of the ore body dip always inwardly; the dip is rather flat near the surface, and becomes steeper downward and is even vertical toward the center of the pipe. The wallrocks have suffered from wide and intensive hydrothermal alterations, which are essentially marialitization, albitization ripidolitization, and so on. Marialite is commonly replaced by albite, but some crystal forms of it is still well preserved. The iron ore is a typical pneumatolytic hypothermal deposit according to the mineral association, and the magnetite is the most important ore mineral. It is postulated that the iron might have been mobilized from the andesitic wallrocks, and deposited in the favorable conditions.

本文对吉山面型含矿角砾岩体的形成,从角砾岩的特征,空间分布,产状,以及裂隙构造痕迹等方面证明,它是一火山气体爆发角砾岩筒。还详细讨论了该角砾岩筒对铁矿体的控制,以及成矿作用的特征,包括围岩蚀变,标型矿物及成矿物质来源等方面。

 
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