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gold-bearing hydrothermal
相关语句
  含金热液
     CHARACTERISTICS AND STUDY SIGNIFICANCE OF GOLD-BEARING HYDROTHERMAL CRYPTOEXPLOSION BRECCIAS
     含金热液隐爆角砾岩的特征及研究意义
短句来源
     Potassium is one major component of gold-bearing hydrothermal solution.
     钾是含金热液最主要的组分之一。
短句来源
     The gold-bearing hydrothermal cryptoexplosion breccias can be divided into three types ofmagmatic water,precipituted water,and mixed water.
     含金热液隐爆角砾岩可划分为岩浆热液隐爆角砾岩、岩浆一天水混合热液隐爆角砾岩和天水热液隐爆角砾岩。
短句来源
  “gold-bearing hydrothermal”译为未确定词的双语例句
     The manner of mineralization is injection type of gold-bearing hydrothermal solution at moderate temperature and moderate depht.
     矿床成因类型属中温、中深条件下形成的岩浆热液充填型金矿床。
短句来源
     It is inferred that gold in the Tongchang ore was deposited from gold-bearing hydrothermal fluid,which circulated along faults and extracted gold and other o re-forming matters, by infilling and replacing at low pressure and temperature site in the fault system.
     金矿床可能是在新生代岩浆-构造作用晚期,断裂构造中循环的热液汲取上地壳沉积围岩中的金等成矿物质形成的含矿流体,在断裂构造带压力和温度较低部位通过充填和交代作用形成的.
短句来源
  相似匹配句对
     Gold
     黄金
短句来源
     Gold
     金光熠熠
短句来源
     Earrings from K-gold
     俏皮耳坠自由摇滚K-gold的音乐节拍
短句来源
     GOLD-COLLAR WORKER
     谁是“金领”
短句来源
     bearing design;
     轴承设计问题;
短句来源
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  gold-bearing hydrothermal
The retrograde P-T evolution probably resulted from regional uplift and cooling of gold-bearing hydrothermal fluids.
      
The Tp1-P inclusions are considered to represent the gold-bearing hydrothermal fluids.
      
Fluid inclusion microthermometry and the P-T evolution of gold-bearing hydrothermal fluids in the Niuxinshan gold deposit, easte
      
A fluid mixture of H2O-CO2-NaCl±CH4±N2 predominated in the orogenic (mesothermal) gold-bearing hydrothermal systems, with deposition of the final-stage gold-bearing sulfosalts from aqueous-salt fluid.
      


The composition and migration direction of the mineral bearing fluid of this deposit together with its metallogenetic epoch and temperature, and source material are discussed. The gold in Jiangkou Formation with a content of 6.5 ppb was activated and transpotted into metamorphic water during metamorphism (Fe~(3+)Fe~(2+), Au~0 → Au~(3+) or Au~+). The water then infiltrated downward and enriched in gold at depth where it was heated by the concealed granitic intrusive and mixed with magmatic gold-bearing hydrothermal...

The composition and migration direction of the mineral bearing fluid of this deposit together with its metallogenetic epoch and temperature, and source material are discussed. The gold in Jiangkou Formation with a content of 6.5 ppb was activated and transpotted into metamorphic water during metamorphism (Fe~(3+)Fe~(2+), Au~0 → Au~(3+) or Au~+). The water then infiltrated downward and enriched in gold at depth where it was heated by the concealed granitic intrusive and mixed with magmatic gold-bearing hydrothermal soiution. Finally the mixed gold-bearing fluid moved upward by tectonism and replaced the fracture zone and wall rocks with the result that the chlorite changed into sericite, Fe~(2+) oxidized into Fe~(3+) and Au~(1+) or Au~(3+) reduced into native gold and deposited to form gold ore.

探讨了矿液成分、运移方向、成矿阶段和温度、金的来源。江口组地层含金6.5ppb,在变质过程中(Fe~(3+)→Fe~(2+),Au~0→Au~(1+)或Au~(3+))活化转移到变质水中,下渗聚集;被隐伏花岗岩体加热,与含金岩浆热液混合;构造作用使其上升并交代破碎带和围岩;绿泥石变为绢云母,Fe~(2+)氧化成Fe~(3+),Au~(1+)或Au~(3+)还原成自然金,沉淀成矿。

Potassium is one major component of gold-bearing hydrothermal solution. Hydrothermal processes are able to produce significant potassium metasomatism for country rocks along fracture channel. Potassium anomalies are

钾是含金热液最主要的组分之一。热液在沿着裂隙通道的活动中,能对围岩产生明显的钾交代蚀变。钾异常在成因上和空间上与金矿化的密切关系,对金矿的找矿勘探和成矿预测具有重要意义。勘查实践证明,还可用γ能谱法现场探测获得钾异常。这种简便的勘查金的新技术方法值得推广使用。

The Xiongershan area is located on the southern margin of the north China plateform. Gold deposits in this area can be divided into three types,structral altered rock type,quartz vein type,and blasting-breccia type. Except that blasting-breccia type gold deposit related to granite-porphyry, the other two types can occur in either Archean metamorphic rocks of Taihua group or Proterozoic volcanic rocks of Xionger group.Lead isotope composition and calculated second isochron model-age of gold deposits indicated...

The Xiongershan area is located on the southern margin of the north China plateform. Gold deposits in this area can be divided into three types,structral altered rock type,quartz vein type,and blasting-breccia type. Except that blasting-breccia type gold deposit related to granite-porphyry, the other two types can occur in either Archean metamorphic rocks of Taihua group or Proterozoic volcanic rocks of Xionger group.Lead isotope composition and calculated second isochron model-age of gold deposits indicated that material sources for the formation of granitic batholith and gold deposits were mainly from the Archean Taihua group metamorphic rocks. Ranges of δ34S‰ for metamorphic rocks,volcanic rocks and granite are 1.3 to 5.7 , 2.5 to 5.4, 1.8 to 5.4, respectively. Sulfur isotope composition for all types gold deposits are different. δ34S‰ for blasting-breccia gold deposit is near zero ,indicated that the ore-forming hydrothermal fluid derived from magmatism of granite-porphyry. δ34S‰ for other two types are either positive or negative,even that δ34S‰ for different mineralizing stages for a deposit are inconsistent.For example , δ34S‰ for early stage and gold-deposition stage of the Shanggong deposit are 2. 1 to 4. 2 ,-6. 3 to -16. 3 , respectively. The reason causing this difference is physio-chemical condition and variation of hydrothrmal fluids. Respective fluid δ18O‰ and δD‰ for the (1) metamorphic fluids during regional metamorphism-migmatization , (2) magmatic fluids expelled from the granite, (3) gold-bearing hydrothermal fluids of early stage , (4) hydrothermal fluids of gold deposition are :(1) 5. 8 to 6. 8 ,and -24.5 to -27. 6; (2) 6.6 to 8. 5,and -64.7 to -68. 7; (3)5. 2 to 8. 9,and -45.1 to -70. 6;and (4) 1. 5 to 5.0 ,and -55. 2 to -83. 6. These data highlight that ore-forming fluids were related with Yianshanian granitic magmatism ,and mixed with meteoric water during gold mineralization. Combined with the geological background ,formation of gold deposits in this area is related to activity of syn-tectonic granitic magmatism hydrothermal fluid.

对豫西熊耳山地区岩石和金矿床的铅、硫、氧和氢等同位素系统研究表明,尽管本区金矿床的类型不同,赋矿围岩性质也不尽一致,但成矿物质主要来自基底太古界太华群变质岩,成矿热液来源于燕山期花岗岩浆热液活动,金沉淀成矿阶段有大气水的混入。本区不同金矿床甚至同一矿床不同成矿阶段硫同位素组成差异的根本原因不是硫源的不同,而是受控于热液的物理化学条件及其变化。

 
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