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hydrothermal metasomatism
相关语句
  热液交代
     One is hydrothermal metasomatism related to magmatic-derived fluids and another is hydrothermal replacement of metamorphic fluids that possibly derived from formation brines.
     滑石的成因模式主要有两类:一为与岩浆热液有关的热液交代成矿模式,另一是起源于盆地热卤水的变质流体交代成矿模式。
短句来源
     Below the main ore layers of the South China type massive sulphide deposits there frequently occur discordant ore bodies formed by fissure filling, hydrothermal metasomatism and brecciation. The ores fall into the copper-sulphur type and lead-zinc type.
     华南型块状硫化物矿床层状矿体下盘往往存在着裂隙充填、热液交代和角砾岩矿化形成的不整合矿体,其矿石成分主要有铜-硫和铅-锌两种类型。
短句来源
     The average grade of gold is 4.14~7.20 g/t,and is directly interrelated with the altered strength and structural stress. The characteristics of petrochemistry, REE, fluid inclusion and stable isotope geochemistry show that the genesis belongs to the middle-high-temperature hydrothermal metasomatism and filling type.
     矿体金平均品位为4.14~7.20g/t,金含量与钠长石岩的蚀变强度及所受构造应力强度成正相关.矿床岩石化学、稀土元素、流体包裹体成分、稳定同位素地球化学等特征表明,其属中高温热液交代充填型金矿床。
短句来源
     So the rocks should be typical jasperoid, which, instead of being formed by hydrothermal sedimentation or sedimentary exhalation between seawater and the surface of sediments, is a product of hydrothermal metasomatism.
     认为该矿床内硅质岩石非海水与沉积物界面之间的热水沉积成因或海水沉积作用形成的硅质岩 ,而是低温热液交代硅化形成的似碧玉岩。
短句来源
     (La/Yb)n ratios of chorndrite-abnormalied REEs of the rocks and ores, and Co/Ni,sulfur isotopic ratios of sulfide reveal that the hydrothermal rocks is derived from alkaline-carbonatitic volcanic rocks,as well as the hydrothermal metasomatism took an important role in the mineralization. The mineralization in the hydrothermal rocks includes iron as well as copper,zinc,cobalt and silver.
     岩石、矿石的高场强元素对比值、稀土元素球粒陨石标准化比值、硫化物 Co/Ni 和 S 同位素比值显示喷流岩源于碱性-碳酸质火山岩,热液交代对成矿作用也有重要贡献,喷流岩除了铁矿化,还有铜、钴、锌、银等。
短句来源
  热液交代作用
     According to the genettic information of this mineral, the authors consider that the ferri - winchite was probably formed by the low - temperature hydrothermal metasomatism.
     根据成因信息,作者认为该矿物可能是低温热液交代作用的产物.
短句来源
     According to the geological characters of the deposit, chemical composition and texyures of ore, phisical chemical conditions of forming ore, substance source of forming ore and geotectonic environment, jadeite ore is thought to be the result of magmatism, hydrothermal metasomatism and metamorphism in the collision of the plates.
     根据翡翠矿床地质特征、矿石化学成分、矿石结构、成矿物理化学条件、成矿物质来源及大地构造环境 ,认为缅甸翡翠矿石是在板块持续碰撞的过程中 ,在岩浆作用、热液交代作用基础上 ,发生变质作用的产物。
短句来源
  “hydrothermal metasomatism”译为未确定词的双语例句
     THE CHARACTERISTICS OF GEHLENITE FORMED IN THE EXPERIMENTS OF HYDROTHERMAL METASOMATISM AND PHYSICO—CHEMICAL CONDITIONS FOR THE FORMATION
     水热交代实验形成的铝黄长石的特征和物理化学条件
短句来源
     The formation of these magnesian non metallic deposits related to the evaporites of the Paleoproterozoic experienced the regional metamorphism and the hydrothermal metasomatism during the Lüliang orogeny, and also the mineralization process of tectono magmatism during the Indosinian Yanshanian.
     这些镁质非金属矿床的形成先与古元古代的蒸发岩系有关 ,然后经历了吕梁期区域变质和热液交代变质改造 ,以及印支、燕山期构造 -岩浆作用改造等成矿系统作用过程 .
短句来源
     The authors hold that Jialu K_feldspar is product of hydrothermal metasomatism, and its heat released in the course of adjusting structural state must have made an impact on the auriferous hydrothermal solution at the early high_temperature stage, thus activating gold complex.
     因此 ,认为驾鹿钾长石是热液蚀变的产物 ,它调整结构所释放的热量对早期高温阶段的含金热液有影响 ,起着一种活化金络合物的作用 ,不利于金沉淀就位。
短句来源
     Thus, this paper argues that the deposit belongs to the products of old seafloor hydrothermal metasomatism, and the deposit is a special exhalation one bound up with the old seafloor hydrothermal circulatory system.
     故该矿床系古海底热水交代成因,属与古海底热水循环系统有关的一种独特的热水交代型夕卡岩矿床。
短句来源
     The high intensity of O-H vibration in the infrared spectra implies that the organic matter has experienced strong hydrothermal metasomatism.
     羟基红外吸收峰强度大 ,表明有机质经历了强烈的热液流体交代作用。
短句来源
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  hydrothermal metasomatism
Quarzite inclusions in basalt of the Bramburg near Goettingen became transformed by hydrothermal metasomatism into gyrolite, okenite, tacharanite and apophyllite.
      
Hydrothermal metasomatism caused microcline and biotite formation, prevailing in the Rebecca diorite.
      
The hydrothermal alteration started with an extensive K-dominated hydrothermal metasomatism in the whole Rebecca diorite.
      
Hydrothermal metasomatism associated with acid intrusives of the Variscan Karkonosze massif introduced mineralizing fluids along tectonic lineaments.
      
In such an environment late-stage hydrothermal metasomatism was developed along the fissures of serpentine, resulting in the crystallization and precipitation of demantoid in asbestos veins.
      
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The pseudomorphic octahedral chlorite and serpentine in chromitite of western Ali, Tibet were previously discussed by the authors (1983). Recently, they have found pseudomorphic octahedral diopside, tremolite, and chlorite in serpentinized harzburgite of the same area. The Ca-rich and Al-poor characteristics of octahedral diopside suggest a metasomatic reaction under the condition of lowering temperature and pressure. This is consistent with the characters of cell parameters of octahedral diopside. The Si-rich...

The pseudomorphic octahedral chlorite and serpentine in chromitite of western Ali, Tibet were previously discussed by the authors (1983). Recently, they have found pseudomorphic octahedral diopside, tremolite, and chlorite in serpentinized harzburgite of the same area. The Ca-rich and Al-poor characteristics of octahedral diopside suggest a metasomatic reaction under the condition of lowering temperature and pressure. This is consistent with the characters of cell parameters of octahedral diopside. The Si-rich and Al-poor features of octahedral chlorite are similar to conditions of octahedral diopside, but are completely different from the chemical characters of hypabyssal hydrothermal chlorite. The octahedral diopside is also obviously distinct from diopside of hypabyssal altered ultramafite in chemical composition. The chemical fratures of these two octahedral silicates may be attributed to hydrothermal metasomatism during the early stage uplifting and emplacement of the mantle rock. The reactions of ringwoodite-octahedral diopside-octahedral tremolite and ringwoodite-octahedral serpentine-octahedral chlorite are dealt with in this paper.

阿里西部超镁铁岩带八面体假像透辉石具有富钙贫铝的化学特点和降温降压的晶胞参数。八面体假像绿泥石具有富硅贫铝和贫铁的特点,它们都与地壳浅成热水产物的透辉石和绿泥石的化学特征完全不同。而它们可能是超镁铁岩由地幔上升侵位的早期所形成的热水交代产物。本文讨论了由尖晶橄榄石向八面体假像硅酸盐矿物转变的交代反应。

Results presented in this paper were obtained during a preliminary application of prospecting geochemistry in Lugu area, Sichuan province. Sole magnetite is preferentially associated with Zn, Ni, Mn, Mo anomalies. Sn-bearing magnetite is related to Zn, Mn, Sn, As anomalies.Ni and Mo anomalies can predict the scale of a deposit, while the Sn, As anomolies indicate Sn-bearing hydrothermal metasomatism.

本文是四川泸沽地区磁铁矿床上的地球化学试验结果,这一工作是初步的。作者注意到,单一的磁铁矿主要出现Zn、Mn、Ni、Mo异常:含Sn磁铁矿主要出现Zn、Mn、Sn、As异常。前者、特别是Ni、Mo异常与矿的规模有关。而后者,特别是Sn、As与含Sn热液交代有关。文中给出的地球化学数据明显地说明了这一点。因此,毫无疑问这一工作对磁铁矿床的预测和勘探都有普遍意义.

The Dushan jades of Nanyang occur as veins in the tremolitized gabbro body. Various sorts of typical samples (white jade, green jade, white-green jade, brownish black jade) have been selected to perform polished and thin section microscopic observation, EMP, XRD and infrared spectral analysis, microhardness determination and SEM observation.The results of these studies show that Dushan jades are very peculiar in mineral composition, with "pure" anorthite and zoisite as the main minerals associated with a series...

The Dushan jades of Nanyang occur as veins in the tremolitized gabbro body. Various sorts of typical samples (white jade, green jade, white-green jade, brownish black jade) have been selected to perform polished and thin section microscopic observation, EMP, XRD and infrared spectral analysis, microhardness determination and SEM observation.The results of these studies show that Dushan jades are very peculiar in mineral composition, with "pure" anorthite and zoisite as the main minerals associated with a series of Cr bearing minerals, such as chrome-epidote, chromian muscovite margarite, chromian biotite-phlogopite, volchonskoite and chromite. Rock-forming minerals are characterized by high calcium, high aluminium and poor silicon, suggesting that Dushan jades were formed in a rather unusual geologic environment. Due to integrated control of original rocks and late-stage hydrothermal fluids, the main products are Ca-bearing aluminosilicates. With the intensification of hydrothermal metasomatism, the minerals might haev evolved in order of anorthite-zoisite, epidote-muscovite, and margarite-volchonskoite. Many minerals of Dushan jades contain chromium, which must have had much to do with the green and bright green colors of Dushan jades.

南阳独山玉呈脉状产于河南省南阳市独山透闪石化辉长岩岩体内。笔者选择了各种代 表性样品(白玉、绿玉、白绿玉,棕黑色玉),对其进行了光薄片显微镜观察、探针、电镜、X光、红外等分析以及显微硬度测定。研究表明,独山玉在矿物成分上极为独特,以高钙、高铝、贫硅为特征,如:“纯”钙长石、黝帘石、珍珠云母等。除此之外,尚有一系列含铬矿物,如:铬绿帘石、含铬白云母—珍珠云母,含铬黑云母—金云母、铬蒙脱石、铬铁矿。这表明独山玉是在较特殊的地质环境下形成的,起交代作用的热液成分以钙为主,而铬对独山玉呈绿色、翠绿色有很大关系。

 
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