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magmatic hydrothermal fluids
相关语句
  岩浆热液
     (3)Na~(+)-K~(+)(-Ca~(2+))+Mg~(2+)composition of fluid inclusions diagram shows intimate relationship between gold metallogenic fluids and magmatic hydrothermal fluids;
     (3)在流体包裹体的w(Na+)-w(K+)-w(Ca2++Mg2+)成分三角图上表明金成矿流体和岩浆热液具亲缘关系;
短句来源
     (6)S,H,O and Pb isotopes show that the ore-forming fluid and(metallogenic) material come from magmatic hydrothermal fluids.
     (6)S、H、O、Pb同位素组成表明成矿物质和成矿流体来自岩浆热液
短句来源
     ③S,H,O and Pb isotopes show that the metallogenic liquid and material come from magmatic hydrothermal fluids in the Nannihu area.
     ③S、H、O、Pb同位素组成表明,南泥湖地区的成矿物质和成矿流体来自岩浆热液;
短句来源
     It is thus concluded that the Pb_Zn deposits are mostly akin to skarn Pb_Zn deposits and partly belong to hydrothermal deposits controlled by faults, and that they are ore deposits subjected to metamorphism, replacement, superposition along the bed, strong reformation, or remobilization and deposition by Yanshanian tectono_magmatic hydrothermal fluids.
     因此推论本区铅锌矿床大部分类似于矽卡岩型Pb_Zn矿床,少数为受断裂控制的热液脉型矿床,是海底火山喷发沉积形成的初始矿源层经变质作用、燕山期构造_岩浆热液顺层交代、强烈叠加改造或活化并重新定位的矿床。
短句来源
     EXSOLUTION AND EVOLUTION OF MAGMATIC HYDROTHERMAL FLUIDS AND THEIR CONSTRAINTS ON THE PORPHYRY ORE-FORMING SYSTEM
     岩浆热液出溶和演化对斑岩成矿系统金属成矿的制约
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  “magmatic hydrothermal fluids”译为未确定词的双语例句
     It was reported that the deposit was formed by the magmatic hydrothermal fluids secreted from a gabbro sill, at ~800 Ma. In this paper, direct dating of molybdenite from the deposit using the ReOs method has been done. Four ReOs ages range between 928±1 Ma and 1005±1 Ma.
     4个样品的测定结果为:928(±1)1005(±1)Ma。
短句来源
     δD and δ18O in fluids indicate that the water in ore-forming fluids of the lead-zinc deposits is mainly connate water, while most of the water in ore-forming fluids of the Baguamiao gold deposit is magmatic water or connate water heated by magma, whose metallogenic relation is closely related to magmatic hydrothermal fluids.
     溶液水中的氢、氧同位素显示铅锌矿床的水源主要为地层水,而八卦庙金矿床中的水源主要是岩浆水或受岩浆加热的地层水,其与岩浆热液的成矿关系较为密切。
短句来源
     (4) there were tensile faults in the upper crustal tectonic system for emplacement of magmatic hydrothermal fluids;
     (4)地壳上层构造体系中的张性断裂,以供岩浆热液的就位;
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
     Hydrothermal Eruption
     水热爆炸
短句来源
     ON HYDROTHERMAL ROCK
     关于热液岩
短句来源
     Silicon shows the features of deep-seated magma or magmatic hydrothermal fluids.
     硅具深部岩浆或岩浆热液水来源的特点。
短句来源
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  magmatic hydrothermal fluids
The fluid composition in the cale-silicate rocks was buffered entirely externally through magmatic/hydrothermal fluids related to the granite intrusion.
      
Carbonate δ13C and δ18O and sulphide δ34S values are consistent with the interaction of magmatic hydrothermal fluids with Palaeozoic carbonate rocks and a largely magmatic source of sulphur.
      
The deposits form when magmatic-hydrothermal fluids expelled from cooling magmas react chemically with carbonate-rich sedimentary rocks.
      


Lying in area of Lingbao County and Tongguan County,the Xiaoqinling gold field is of gold-bearing quartz vein type occurring in Archaeozoic Taihua Group. The Taihua Group exposed in this area is a suite of metamorphosed inter- mediate-basic volcanic-sedimentary formation.The structural framework of the ore field comprises the regional fractures on the south and north sides and the refolded fold confined within them,with the places around the major axis of the refolded fold being the most concentrated locations...

Lying in area of Lingbao County and Tongguan County,the Xiaoqinling gold field is of gold-bearing quartz vein type occurring in Archaeozoic Taihua Group. The Taihua Group exposed in this area is a suite of metamorphosed inter- mediate-basic volcanic-sedimentary formation.The structural framework of the ore field comprises the regional fractures on the south and north sides and the refolded fold confined within them,with the places around the major axis of the refolded fold being the most concentrated locations of the gold-bearing quartz veins.Of the frequent magmatic intrusions in the ore field,the Late Yanshanian monzonitic granite is the largest intrusive body.The major ore veins are un- exceptionally distributed 2—7 km from this granite body. There exist over one thousand gold-bearing quartz veins characterized by grouping or zoning as well as by parallel and equidistant distribution.They can be classified into pyrite type and polymetallic type.Ores are concentrated at intervals along the ore veins,generally having lengths of 30—300 m and vertical depths of 100—500 m or more with the ore grade being 6-16 g/t.Lacking of arsenopyrite seems to be a characteristic of the mineral composition.The gold mineralization during the hydrothermal activities might be divided into four stages,i.e., pyrite-quartz(Ⅰ),quartz-pyrite(Ⅱ),polymetallic sulfides(Ⅲ)and carbonate-qu- artz(Ⅳ)with the quartz-pyrite stage and the polymetallic sulfides stage playing the major role in mineralization.The formation temperature of minerals ranges from 303℃ to 155℃.Gold occurs mainly as native gold in the form of fracture gold,having the relative purity of 900-960. Such facts as the penetration of the gold-bearing quartz veins into the early Yanshanian diabase suggest that the Xiaoqinling gold deopsit was formed during the Late Yanshanian period. An isotopic study of the gold ore vein yields an average δD of 45.54‰ and δ~(18)O values from 8‰ to 11‰,showing the characteristics of a relatively normal magmatic water.The narrow variation range of δ~(34)S values,together with the behaviors of sulfur similar to those of meteoritic sulfur,implies that sulfur was largely derived from the magma.Moreover,an examination of minor elements in pyrite and quartz also demonstrates the dominant role of magmatic hydrothermal fluids.It is therefore considered that the Xiaoqinling gold deposit is genetically medium-low temperature magmatic hydrothermal type.

小秦岭金矿系产于太古界太华群中的含金石英脉型金矿。本文研究了小秦岭地层和岩浆岩中金的丰度,在建立太华群层序和该区重褶皱构造格局的基础上研究了含金石英脉展布规律、金矿脉的矿化特征与矿化阶段。根据含金石英脉切穿燕山早期岩脉等大量事实,认为金矿成矿时代为燕山晚期。通过对矿脉矿化特征、同位素地质特征、矿物标型特征、成矿物理化学条件及与晚燕山期二长花岗岩关系等研究,证明小秦岭金矿床属中低温中深岩浆热液矿床。

In this mining district, rhyolite-quartz porphyry-quartz diorite porphyrite and granite-granite porphyry are the multiple partial melting products at two different parts of a same source rock. Thesource rock of igneous rocks is volcanic sedimentary rock series, mostly of intermediate acidity rocks.Ore-forming magmatic hydrothermal fluid was derived from granitic melt.

矿区流纹岩-石英斑岩-石英闪长玢岩和花岗岩-花岗斑岩分别为同一源岩两个不同部位多次部分熔融的产物,火成岩的原岩是以中-酸性火山岩为主的火山沉积岩系,成矿岩浆热液来源于花岗岩熔体.

Jinshan gold ore doposit is situated in Jiangxi province at the southern part of Wan - Gan Fracture. The simlar strata, magmatic rocks and structural conditions exist in the south Anhui province at the northern part of the fracture zone. but gold exploration can not make a break through.This paper presents data of Q - claster analysis, REE and microelement based on which the following ideas are obtained:1. Granitic rocks in the south Anhui Province belong to a anatexie series i. e. tonalitic diorite-granitic...

Jinshan gold ore doposit is situated in Jiangxi province at the southern part of Wan - Gan Fracture. The simlar strata, magmatic rocks and structural conditions exist in the south Anhui province at the northern part of the fracture zone. but gold exploration can not make a break through.This paper presents data of Q - claster analysis, REE and microelement based on which the following ideas are obtained:1. Granitic rocks in the south Anhui Province belong to a anatexie series i. e. tonalitic diorite-granitic diorite-monzonitic granite-syenitic granite-alkaline granite showing a evolution tendancy to Si-rich-K-rich rocks.2. Such a reies is scharacterized by anatexic magma with a narrow range of REE value (150.32 - 166.47), with the more Eu negative abnormal form as the increasing of the differentiation coefficient. With progress of the evolution of the series Li, Rb, Cs, Nb,, (Ta), (U), Th, (Ba) are increased and the chalccofile elements, Co, (ni), V, Cr, W, Mo、Cu、Pb, (zn), An、and Ag are decreased inciding with the differential principle and suggesting a concentration tendancy at the late magmatic hydrothermal fluid period.4. Gold abundance is very low in alkaline granite but it is the end member of the evolution series and always associated spatialy with the ore - material - rich late magmatic hydrothermal fluid. So such rock bodies and the fracture zones in the periphery of them are the favourable sites to form gold deposit.

皖南-赣东北深大断裂带是华南地区重要金矿成矿带之一.金山金矿床是其中的典型代表.本文着重对该成矿带北部皖南地区的岩浆岩进行了研究,认为该区不同类型花岗岩类同属一个深熔岩浆系列.其中形成最晚的碱性花岗岩与金矿化具有密切的成生联系.

 
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