| 中低温热液近矿围岩蚀变的地球化学模型（以某矿区为例） |
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| 引用本文： | 王联魁,曹俊臣,杨柏林,胡瑞英,刘师先.中低温热液近矿围岩蚀变的地球化学模型（以某矿区为例）[J].地球化学,1977(1):85-86. |
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| 作者姓名： | 王联魁 曹俊臣 杨柏林 胡瑞英 刘师先 |
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| 摘 要： | Detailed geological studies and systematic examinations in terms of petrology,petrochemistry, mineralogy and minor clement distribution with respect to a number of typical profiles together with some available experimental data, have improved our understanding of the general regularity regarding meso- and epi-hydrothermalal terations of Si^-, Al^-, K^-, Na^- rich wallrocks as is referred to as the “geochemical model of alteration evolution” in this paper. General trend and broad similarities are recognizable in the process of hydrothermal alterations. It is clear that the continued variation in ionic eoncentration of hydrothermal solutions act as the fundamental control determining the development of alteration. As a resuit, differentiation and evolution of the hydrothermal solutions have taken place in response to this variation from the inner parts outwards as well as from the lower parts upwards. Temporally, mineralization is to a first approximation contemporancous with, or somewhat later than, alteration. Spatially, it is reflected by the zonal arrangement of alterations in the following sequence: silicification,petnssie alterations(♀），illitization(or sericitization),montmorilloitization,kaolinization,chloritization-albitization(or propylitization),and etc.Preliminary attempts have been made to apply this“model”to iron and ecpper depositions.
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| 关 键 词： | 中低温热液 围岩蚀变 地球化学模型 剖面 |
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