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vein hydrothermal gold deposit
相关语句
  脉状热液金矿
     Vertical zoning of vein hydrothermal gold deposit and its deep prognosis (part Ⅰ) : summary of metallogenic stages and vertical zoning
     脉状热液金矿垂向分带及深部预测(一)——成矿阶段及垂向分带概述
短句来源
     Vertical zoning of vein hydrothermal gold deposit and its deep prognosis (part Ⅱ): summary of metallogenic stages and vertical zoning
     脉状热液金矿垂向分带及深部预测(二)——垂向分带机理及深部预测
短句来源
  相似匹配句对
     Vein
     脉
短句来源
     7, hydrothermo-metasomatic and hydrothermal vein type;
     7)热液交代和热液脉型;
短句来源
     vein gen.
     vein gen.
短句来源
     THE SIGNIFICANCE ABOUT THE VEIN IN STUDYING THE GENESIS OF HYDROTHERMAL ORE DEPOSITS
     岩脉在热液矿床成因研究中的意义——以胶东西北部金矿床为例
短句来源
     Hydrothermal Eruption
     水热爆炸
短句来源
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According to the systematic study on the four gold deposits belts, it is discovered that the vein hydrothermal gold deposits experience seven stages: pyrrhotite quartz, pyrite arsenopyrite, pyrite large quartz vein, gold vein pyrite, Au Ag polymetalic sulfide, Au Ag telluride and pyrite quartz carbonate. The differences of the deposits are only the differences on the completion and the intensity of the development of the metallogenic stages. In...

According to the systematic study on the four gold deposits belts, it is discovered that the vein hydrothermal gold deposits experience seven stages: pyrrhotite quartz, pyrite arsenopyrite, pyrite large quartz vein, gold vein pyrite, Au Ag polymetalic sulfide, Au Ag telluride and pyrite quartz carbonate. The differences of the deposits are only the differences on the completion and the intensity of the development of the metallogenic stages. In the range of the deposits, ore belts and orefields, there are vertical respective zoning of the gold mineralization. There are obviously spatial changing trending on Au, Cu, Zn, Pb and Ag.

经过对 4个金矿区带的系统调查研究 ,发现脉状热液金矿由早而晚具有磁黄铁矿 -石英、黄铁矿 -毒砂、黄铁矿 -石英大脉、金 -脉状黄铁矿、金银 -多金属硫化物、金银 -碲化物、黄铁矿 -石英-碳酸盐 7个阶段。矿床之间的差异只是成矿阶段系列发育的完整程度和成矿阶段发育的强度不同。在矿床、矿带和矿田范围内 ,都具有由上而下、由早而晚的金矿化垂向相对分带 ,Au、Cu、Zn、Pb、Ag存在明显的时空变化趋势。

It follows a certain sequence and is consistent with the corresponding metallogenic stage that the metallogenic elements of the vein hydrothermal gold deposits separate out the precipitation. It is determined by the atomic structure, crystal chemistry, electrochemistry and their combination of the metallogenic elements, the activity of the metallogenic elements in the hydrothermal and the stable energy of crystal field. In the faulted structure belt controlling the vein hydrothermal...

It follows a certain sequence and is consistent with the corresponding metallogenic stage that the metallogenic elements of the vein hydrothermal gold deposits separate out the precipitation. It is determined by the atomic structure, crystal chemistry, electrochemistry and their combination of the metallogenic elements, the activity of the metallogenic elements in the hydrothermal and the stable energy of crystal field. In the faulted structure belt controlling the vein hydrothermal gold deposits, the relatively developed upper extension fissure group, with the factors of high oxygen fugacity, more abundant groundwater than the deep and the corresponding sudden relief of outer pressure, bleeding and oxidation of the volatile matter, dilution of the groundwater, and differences between sulphophile and oxyphile elements of the metallogenic elements, cause the metallic sulphide complex entered the faulted belt first decomposition and precipitation in the upper of the belt, then in the middle and lower of it. The opening,filling and solidification of the upper faulted structure play the role of "welding" to the faulted structure, shield the elevation of the next ore solution. So the later ore fluid successively fills and solidifies under the former metallogenic orebody. It finally results in the vertical zoning of the vein hydrothermal gold deposits.

脉状热液金矿成矿元素析出沉淀遵循一定的顺序 ,并与相应的成矿阶段相一致。是由成矿元素的原子结构、晶体化学、电化学及其结合规律、成矿元素在热液中的活动性和晶体场稳定能决定 ;控制脉状热液金矿的断裂构造带上部张性裂隙群相对发育 ,氧逸度相对高 ,地下水较其深部丰富以及相应的外压力突降、挥发性物质逸散、氧化、地下水稀释作用和成矿元素本身亲氧性与亲硫性的差异等因素 ,导致进入断裂带中的金属硫配合物在上部首先分解沉淀 ,而后依次是中、下部。上部断裂构造的张开、充填、凝固对断裂构造起“焊接作用”,阻挡屏蔽了下一期次矿液的上升 ,后来的矿液只能屈居前次成矿体之下依次充填、凝固 ,由此最终导致了脉状热液金矿的垂向分带。

 
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