They can be divided into low sulphidation and high sulphidation types, with typical wall rock alteration and alteration zonation of epithermal de-posit.

这些矿床可分为高硫化型和低硫化型，且都具有典型的围岩蚀变、蚀变分带等矿床特征。

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The magmatic evolutionary series shows a general trend of evolution from high to low basicity of magma, from great to shallow depths of magmatic intrusion and from strong to weak wall-rock alteration.

岩浆演化序列表现出岩浆基性程度由高变低、侵入深度由深变浅、围岩蚀变由强变弱的总体演化趋势。

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The main purpose of this paper is to introduce a new method to study the immobile elements and mass transport of in geochemical process of wall-rock alteration.

在以往围岩蚀变的质量迁移研究基础上，本文提出了一种判定惰性元素的方法，同时结合等浓度线和加权最小二乘法；

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