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围岩蚀变 [wéi yán shí biàn]
[地质] wall rock alteration
country rock alteration
country rock alteration
- 康山金矿田围岩蚀变主要为硅化、绢云母化、碳酸盐化及黄铁矿化。
The main wall rock alterations of the Kangshan goldfield are silication, sericitization, carbonicacidation and pyritization . - 含矿层受热液作用影响产生不同蚀变，因而，围岩蚀变与矿化的关系也甚为密切。
The producing formations have variable alteration under thermal fluid indicating there is a close relationship between wall rock alteration and mineralization. - 微细浸染型金矿的围岩蚀变一般较弱，主要蚀变类型以硅化、碳酸盐化、粘土化、绢云母化为主；
Micro-disseminated Au deposits are generally associated with weak wall rock alterations. Silicification , carbonation, argilation and sericitization are the main alteration types.
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