首页> 外文会议>23rd New Zealand Geothermal Workshop 2001, 2001, Auckland >STYLES OF HYDROTHERMAL ALTERATION IN THE DARAJAT GEOTHERMAL FIELD, WEST JAVA, INDONESIA: A PROGRESS REPORT
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STYLES OF HYDROTHERMAL ALTERATION IN THE DARAJAT GEOTHERMAL FIELD, WEST JAVA, INDONESIA: A PROGRESS REPORT

机译:印度尼西亚西爪哇省达拉加特地热田的水热交替样式:进展报告

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摘要

Hydrothermal minerals in the Darajat geothermal field occur in two main styles: replacement and in veins. The former is a product of reactions between thermal fluids and primary minerals present in the reservoir rocks, comprising andesite lavas and pyroclastics. Although the minerals formed in both styles are the same, e.g. wairakite, prehnite, epidote, calcite, their significance differs and show that changes in hydrology have occurred in at least part of the Darajat reservoir. The textural relations within the vein minerals, for example, record local progressive cooling.
机译:达拉哈特地热田中的热液矿物以两种主要形式存在:替代和脉状。前者是储层岩石中热流体与主要矿物(包括安山岩熔岩和热碎屑岩)之间反应的产物。尽管两种样式形成的矿物都是相同的,例如wairakite,prehnite,Epidote,方解石,它们的意义不同,表明至少在达拉哈特水库的一部分发生了水文变化。例如,矿脉内的纹理关系记录了局部渐进冷却。

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