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magmatic hydrothermal deposits
相关语句
  岩浆热液矿床
     SOME PROBLEMS CONCERNINMG THE FORMATION OF MAGMATIC HYDROTHERMAL DEPOSITS
     关于岩浆热液矿床形成的几个问题──以斑岩型矿床为例
短句来源
     Although granitoid intrusives in the belt are spatially and temporally associated with gold mineralization, there is no direct genetic link between them, namely, these gold deposits are not magmatic hydrothermal deposits.
     尽管区内花岗岩类侵入体与金矿床间存在密切的空间及时间关系, 但它们之间并不存在直接的成因联系,即这些金矿床并不是岩浆热液矿床
短句来源
     In time and space,it obviously shows multiple phases,muliti stages and zonation,and the altered characteristics could be an indication for prospecting for magmatic hydrothermal deposits.
     在时间上具多期和多阶段性, 空间上具明显的分带性。 其蚀变特征可作为寻找岩浆热液矿床的标志。
短句来源
     Based on the stable isotope geochemistry of the Baguamiao,Liba and Xiaogouli gold deposits,combined with the metallogenic environment and regional metallogenic characteristics,the authors suggest that gold deposits in the Fengtai-Xicheng-Limin area are notably different from finely disseminated(Carlin type)gold deposits in that the former are genetically similar to magmatic hydrothermal deposits.
     据八卦庙金矿、李坝金矿、小沟里金矿稳定同位素地球化学研究,结合成矿地质背景分析和区域成矿地质特征对比,认为凤太、西成、礼岷地区金矿与微细浸染型(卡林型)金矿有明显的差别,该区金矿类似于岩浆热液矿床
短句来源
  “magmatic hydrothermal deposits”译为未确定词的双语例句
     They are transitional ore deposit types connected to and progressively evolved into each other between the two end members of sedimentary deposits and magmatic hydrothermal deposits, and were formed under the condition of identical controlling factors and similar ore-forming material sources, migration and emplacement mechanism, thus belonging to the same genetic series, i. e., genetic series of stratabound ore deposits.
     它们是在控制因素相近,成矿物质来源、迁移和就位机制既有联系又逐渐演化的条件下形成的,属于同一矿床成因系列。
短句来源
     In term of the spatial variation of δ (18 O) values, the gradually decreasing trend can be concluded of the δ(18O) values from the orethey, altered rock to unaltered rock for magmatic hydrothermal deposits In other words, the mineralization center is aariated with the high value of δ(18O). This conclusion may serve as an important indicator for the ore prospecting and exploration.
     根据δ(18O)值空间变化,得出岩浆热液成因的矿床由矿体→蚀变岩→未蚀变岩,其δ(18O)值呈逐渐降低的趋势,即矿化中心正是δ(18O)的高值区,这对找矿具有重要的指导意义.
短句来源
  相似匹配句对
     The deposit belongs to the mesothermal magmatic-hydrothermal type.
     它属于中温岩浆热液型矿床.
短句来源
     It is genetically of metamorphic - magmatic hydrothermal superimposed one.
     矿床成因类型为变质—岩浆热液叠加改造型。
短句来源
     THE ROLE OF MAGMATIC FLUID IN THE FORMATION OF HYDROTHERMAL ORE DEPOSITS
     岩浆流体在热液矿床形成中的作用
短句来源
     SOME PROBLEMS CONCERNINMG THE FORMATION OF MAGMATIC HYDROTHERMAL DEPOSITS
     关于岩浆热液矿床形成的几个问题──以斑岩型矿床为例
短句来源
     Hydrothermal Eruption
     水热爆炸
短句来源
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  magmatic hydrothermal deposits
Skarn and polymetallic carbonate-replacement deposits are associated with many other types of magmatic-hydrothermal deposits in mineral districts.
      


A study on the characteristics of regional geological setting, geologyof the deposit, isotopes of sulfur and lead, composition of fluid inclu-sions, and physico-chemical conditions of mineralization, all of theseindicate that the cassiterite-sulfide deposit in Beimianshan, Guangxi, isa post-magmatic hydrothermal deposit. This deposit had been formed byfilling and metasomatizing of the hydrothermal solution along the favour-able layers. The physico-chemical conditions of the mineralization...

A study on the characteristics of regional geological setting, geologyof the deposit, isotopes of sulfur and lead, composition of fluid inclu-sions, and physico-chemical conditions of mineralization, all of theseindicate that the cassiterite-sulfide deposit in Beimianshan, Guangxi, isa post-magmatic hydrothermal deposit. This deposit had been formed byfilling and metasomatizing of the hydrothermal solution along the favour-able layers. The physico-chemical conditions of the mineralization are asfollows: the temperature from high to middle and low (355~103℃),pressure middle (800~1140 bar), slightly acid (pH=3.98~5.15), boththe fo_2 (10~(-32)~l0~(-94) atm) and fs_2(10~(-4)~10~(-12·5)atm) low. It seemsthat tin in hydrothermal solution had been transformed in the form offluorine-hydroxyl complex [Sn (F, OH)_x]~(4-x). The main factor had led todecempositing of the complex and precipitating of cassiterite as well asassociated metal sulfide was the reaction of hydrothermal solution withcarbonate rock, which had made the decrease of temperature and increaseof pH of the solution.

区域地质背景、矿床地质特征、硫铅同位素和包裹体成分特征以及成矿物理化学条件研究表明,白面山锡石硫化物矿床是岩浆期后热浪沿不同构造裂隙多次上升,在有利层位和构造条件下充填交代围岩形成的。成矿时的物理化学条件是高至中低温、中压、偏酸性和氧、硫逸度低。锡在热液中可能主要以Sn~(4=)的氟羟基络合物[Sn(F,OH)x]~(4-?)形式搬运;导致络合物分解、锡石和共生硫化物沉淀的主要原因是热液与碳酸盐类岩石起反应,温度降低,pH值升高。

The metallogenetic region of Shexingping lead-zinc deposit occures in the contact zone of granite and carbonatite. The former scholars considered it as a magmatic-hydrothermal deposit. Based on the synthetical study of the characteristics of the deposit, we regard it as a deposit which is formed under the synthetic control of the three ore-forming conditions: source beds metallogenetic body and structural position. So no matter whether in practice or in theroy, it is very...

The metallogenetic region of Shexingping lead-zinc deposit occures in the contact zone of granite and carbonatite. The former scholars considered it as a magmatic-hydrothermal deposit. Based on the synthetical study of the characteristics of the deposit, we regard it as a deposit which is formed under the synthetic control of the three ore-forming conditions: source beds metallogenetic body and structural position. So no matter whether in practice or in theroy, it is very significant to summarize the geological characteristics and ore-forming condition of this kind of deposits.

本矿床产于花岗斑岩与碳酸盐岩接触带,前人认为单一岩浆热液成因。经我们对矿床地质特征综合研究,提出应为矿源层、矿源体、构造位三个成矿条件综合控制形成的矿体。本文总结这类地质特征及成矿条件,不但在理论上而且在本区实际上也具有意义。

Jiapigou region is rich in gold and is one of the most important gold mining area in China. More than ten of gold deposits and over a hundred gold mineralizations were found along the Jiapigou-Dalazi compressional fault zone in the aureola 0-6 km to the south-west of Huangnihe Granite. In the same area huge quantities of veins were collected. Isotopic ages, the accessory minerals and petrochemistry of the veins are comparable to those of Huangnihe Granite.Trace elements and their abundances and K/Rb, Rb/Sr,...

Jiapigou region is rich in gold and is one of the most important gold mining area in China. More than ten of gold deposits and over a hundred gold mineralizations were found along the Jiapigou-Dalazi compressional fault zone in the aureola 0-6 km to the south-west of Huangnihe Granite. In the same area huge quantities of veins were collected. Isotopic ages, the accessory minerals and petrochemistry of the veins are comparable to those of Huangnihe Granite.Trace elements and their abundances and K/Rb, Rb/Sr, Mn/Ti, V/Ti, Co/Ni and Au/Ag ration are almost alike among the veins, the granite and the gold ore-bodies. In the K-Rb,Sr-Ba,Sm-La and(Sm/Fu)sample/(Sm/Eu)chondrite Sm diagrams, the projected points cluster in alike patterns; especially in the last knid of plot which shows the cognate relationship of rocks. The projected points are strictly in linear disposition. The shape, inclination and location of their chondrite-nomalized REE plots are nearly the same. All of their δEu values are positive and δCe values negative.The most important geological characteristics of gold deposits in Jiapigou region is that the gold ore-bodies and the veins coexist spatially and cut each other. According to their cross-cutting, the veins can be divided into three groups: (1)pre-mineralization veins; (2)syn-mineralization veins; and (3)post-mineraliza-tion veins The δD%. values are -86.72 and -86.06 to -91.3 respectively, nearly the same; the type, contents and Cu/Zn, Au/Ag and Co/Ni ratios of trace elements of quartz and magnetite in the granite are similar to those in gold ore-bodies; some ore-forming minerals,such as pyrite, galean, magnetite etc can be found in granite as accessory minerals.All evidences mentioned above undoubtedly indicate that the Huangnihe granite, the veins and the gold ore-bo'dies in Jiapigou region all are the products of a regenerated magma. Therefore the gold deposits in Jiapigou belong to Granite-magmatic hydrothermal deposits.

夹皮沟地区金矿床已有三十余年的研究历史,但关于金矿床的成因问题依然是众说纷纭。笔者利用大量的地质地球化学标志,论证了金矿脉与岩脉及岩脉与海西期花岗岩间的同源性,建立起夹皮沟地区海西期岩浆岩脉与金矿脉的形成演化序列。根据金矿脉与花岗岩之间明显的地球化学相似性,进而直接地证明了夹皮沟地区金矿床属花岗岩浆热液成因。

 
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