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hydrothermal sedimentary facies
相关语句
  热水沉积岩相
     Genesis and Characteristics of Hydrothermal Sedimentary Facies Forsiderite-Silver-Polymetallic Deposits in Yindongzi and Daxigou, Shanxi,China
     陕西银硐子-大西沟菱铁银多金属矿床热水沉积岩相特征及成因
短句来源
     ON CLASSIFICATIONS AND CHARACTERISTICS OF THE DEVONIAN HYDROTHERMAL SEDIMENTARY FACIES IN THE QINLLING OROGEN
     秦岭造山带泥盆系热水沉积岩相的亚相和微相划分及特征
短句来源
  “hydrothermal sedimentary facies”译为未确定词的双语例句
     On Implications of the Devonian Hydrothermal Sedimentary Facies in the Qinling Orogeny
     秦岭造山带泥盆系热水沉积岩相应用研究及实例
短句来源
  相似匹配句对
     GEOCHEMISTRY OF HYDROTHERMAL SEDIMENTARY SILICALITE
     热水沉积硅岩的地球化学
短句来源
     ADVANCES IN THE RESEARCH ON HYDROTHERMAL SEDIMENTARY MINERALIZATION
     热水沉积成矿研究现状与展望
短句来源
     On Implications of the Devonian Hydrothermal Sedimentary Facies in the Qinling Orogeny
     秦岭造山带泥盆系热水沉积岩相应用研究及实例
短句来源
     sedimentary conditions.
     在沉积上、构造上有独特之处。
短句来源
     ON HYDROTHERMAL ROCK
     关于热液岩
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Based on the principle of geological similarity, teogether with research on hydrothermal sedimentary facies in the Qinling orogen, the concept of the hydrothermal sedimentary system has been discussed in the paper In terms of chemical components of hot brine or springs on inland and on the sea floors and petrochemistry of hydrothermal sedimentary rock facies in the Qinling orogen, the geochemical patterns of the paleo hydrothermal fields in the study area can be...

Based on the principle of geological similarity, teogether with research on hydrothermal sedimentary facies in the Qinling orogen, the concept of the hydrothermal sedimentary system has been discussed in the paper In terms of chemical components of hot brine or springs on inland and on the sea floors and petrochemistry of hydrothermal sedimentary rock facies in the Qinling orogen, the geochemical patterns of the paleo hydrothermal fields in the study area can be recognized six different kinds of paleo hydrothermal water, i e acidic the hydrothermal water field of sulfate of carbonate type, the acidic and hard alkaline hydrothermal water field of carbonate type, the hydrothermal water field of silicate type,the alkaline brine field with Mg enriching, the hot brine field, and acidic hydrothermal water field of borosilicate type Characteristics of typical geochemical patterns of hydrothermal fields and ore rock formation of paleo hydrothermal water have been discussed in the paper In the basis of the known achievement in hydrothermal solutions, dynamic models of fluid dynmics of geochemistry have been initated Layer flow model of hydrothermal water with monocomponent of chemistry can be applied to understand ore rock formation of the hydrothermal dynamics, such as Ba ore layer and Fe ore layer. The mixing flow model of the hydrothermal system with different chemical components and different states can be applies to understand ore rock formation of the hydrothermal geochemical dynamic, such as sulfide barite siderite albite chert layer (Ag polymetallic ore laryers)

采用地质类比方法, 结合秦岭造山带热水沉积岩相研究, 提出热水沉积体系概念。通过现代陆相及海相热泉和秦岭热水沉积岩相对比, 按化学成分可将古热水场划分为强酸性硫酸盐型、弱酸强碱碳酸盐型、以SiO2 为酸酐型、碱性富Mg 重卤水型、热卤水型及强酸性硼硅酸盐型等6 种类型古热水场。并对典型热水场的地球化学类型特征及成岩成矿作用进行了讨论。在前人研究的基础上, 探讨了热水系统的流体地球化学动力学。提出了热水沉积成矿盆地中热水系统的两类地球化学流体动力学模型, 热水层流体系模型和不同成分、性状的热水混合体系模型。从热水系统的边界协同学约束条件、空间拓朴结构、流体通量动量方程及矿质大规模沉淀的地球化学动力学等方面对这两类流体动力学模型进行了讨论。

Siderite-silver-polymetallic deposits in Yindongzi and Daxigou ,Shaanxi, Province, China, occur at the Middle Devonian hydrothermal sedimentary facies in the subbasin on the sea bed. There is a major economic orebody in Daxigou which is 2000 m long, from 10 m to more than 100 m thick, and there is the main economic orebody of silve-polymetals in Yingdongzi which is 1900 m long, from 1.0 m to 20.0 m thick. According to patterns of hydrothermal sedimentation ,based on petrology,mineralogy, petrochemistry, geochemistry...

Siderite-silver-polymetallic deposits in Yindongzi and Daxigou ,Shaanxi, Province, China, occur at the Middle Devonian hydrothermal sedimentary facies in the subbasin on the sea bed. There is a major economic orebody in Daxigou which is 2000 m long, from 10 m to more than 100 m thick, and there is the main economic orebody of silve-polymetals in Yingdongzi which is 1900 m long, from 1.0 m to 20.0 m thick. According to patterns of hydrothermal sedimentation ,based on petrology,mineralogy, petrochemistry, geochemistry for the hydrothermal sedimentary facies,the hydrothermal sedimentary facies and their rocks can be classified into five subfacies, respectively,hydrothermal synsedimentary replacement-ebullitional subfacies,hydrothermal synsedimentary subfacies,hydrothermal synsedimentary-replacement subfacies,hot-brine vadose-replacement subfacies,and hydrothermal-mixing synsedimentary sub facies.First,the hydrothermal synsedimentary replacement-ebullitional subfacies consist of brecciated albite carbonate rock and ore-bearing brecciated albite siliceous rock.These brecciated rocks may have formed by the synsedimentary replacement and ebuilition of hydrothermal fluids along pouring passways (synfaults)in the subbasin on the sea bed,for hydrothermal fluids could explode and ebuilite along their passways covered by pre-existing hydrothermal sediments under the pressure of hydrothermal fluid overpassing total pressure of their overlying waterbody in the subbasin and their overlying sediments.Secondly,hydrothermal synsedimentary subfacies is made up of albite rock,sideritite, baritite. These rocks essentially stratiform with their elongation parallel to the bedding and with subfacies change and thinning-out. For examples,Bariteolites were formed by the Ba-richi sulfate hot-brine in a way of rapid chemical precipitation in the subbasin on the sea bed while sideriteolites were produced by Fe-rich carbonate hydrothermal fluid in the same way at the same subbasin.These rock layers are characterized by bedded,laminated,layer-massive structures which change regularly in the subbasin.Thirdly,the hydrothermal synsedimentary replacement subfacies include siliceous ferrodolomitite,ferrodolomite,dolomitic limeston and, siderite ferrodolomile.These hydrothermal rocks occur in the footwall rocks of the orebody or in the pinning-out layer of hydrothermal rocks.They might have been produced by the synsedimentation of the hydrothermal.At the same time, synmetasomatism between the hydrothermal fluids and soft sediments on the bed or the slope of the subbasin could take place because replacement structures are easily recognized in the field and lab study.Results of research on minerology,structures and textures of the rock and petrochemistry have suggested that SiO 2,Al 2O 3 and FeO from the hydrothermal in the subbasin has been extensively replaced in the underlying carbonate sediments on the sea bed. Fourthly,the hot-brine vadose-replacement subfacies is composed of scapolite biotite hornstone and scapolite slate. These rocks can be formed by K, Na and Cl-rich hot-brines during their diagenetic processes in the extensively geothermal environment but it is difficult for them to be formed by the processes related to magmatic activities during superimposed stage with the exception of the hornstone enclosing magmatic intrusions. Finally,the subfacies of mixing of different chemical components and physical-chemical states of the hydrothermal fluids,one of the most important subfacies,include sulfide rocks and albite chert with ore formation. These rock layers or ore layers are characterized by bedded,laminated,layer-massive, graded bedding and graded rhythmite.and chemical bedding, The most important characteristic exists in these rock layers or ore layers.The chemica lbedding is as follows: laminated albite layer→albite-sulfide layer→albite-carbonate mineral-sulfide layer→albite-barite laminated layer→lamineated barite layer→barite-albite-chert layer→ferrdolomite lamnated layer. Most silver polymetallic ore layers were accumulated by t

陕西银硐子 -大西沟特大型菱铁银多金属矿床赋存于中泥盆世吉维特期之上的热水岩相中 ,其微相可划分为热水同生沉积 -沸腾交代微相、热水同生交代微相、热水同生沉积微相、热卤水渗滤交代微相、热水混合沉积微相。热水沉积岩富Na、Si、Fe、Mg、Mn、Ba、Cu、Pb、Zn、As、Ag、B等。在热水沉积盆地中 ,由富Ba的硫酸质热水、富Fe碳酸质热水以快速化学沉淀方式发生同生沉积成矿作用形成重晶石、菱铁矿层。银多金属矿层是由不同成分、性状、富Na、B、Si的铝硅酸质、硼酸质热水与前两类热水相互混合而形成热水混合体系 ,这种非平衡体系发生了剧烈地化学反应而使矿质发生骤沉。

In Tongyugou deposit, hydrothermal sediments consist of bedded orebodies, wrigglites, siliceous rocks, geochemical “anomaly”of rocks,”skarnization” and “silification”, which clearly show the following hydrothermal sedimentary characteristics rarely known before: hydrothermal sedimentary rocks being closely associated with ores, concetrated type (bedded facies)of hydrothermal sediments coexisting with scattered type, and hydrothermal and marine sedimentation participating in or influecing each other Successive...

In Tongyugou deposit, hydrothermal sediments consist of bedded orebodies, wrigglites, siliceous rocks, geochemical “anomaly”of rocks,”skarnization” and “silification”, which clearly show the following hydrothermal sedimentary characteristics rarely known before: hydrothermal sedimentary rocks being closely associated with ores, concetrated type (bedded facies)of hydrothermal sediments coexisting with scattered type, and hydrothermal and marine sedimentation participating in or influecing each other Successive appearance of the hydrothermal sedimentary facies together with olistotrome facies, turbidite facies and volcano sedimentary facies not only indicates environments of spreading subsidence in which hydrothermal activity was generating and their evolution but also shows independent relationship between volcanic and hydrothermal activity

铜峪沟矿床已知的热水沉积物包括有 :层状硫化物矿体和岩石地球化学“异常” (原生晕 )、层矽卡岩和“矽卡岩化”、富硅质沉积物和“硅化”等 ,它们清楚地反映出热水沉积矿石和岩石、集中形式 (相 )和分散形式 (相 )的密切伴生以及热水沉积与正常沉积相互影响、相互参与等鲜为人知的热水沉积特征。热水沉积相与滑塌堆积、浊流沉积和火山沉积相共存不仅反映出热水作用发生的拉张裂陷构造环境和变化 ,而且反映了它们与火山活动的“兄弟”关系。

 
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