蚀变作用

在蚀变作用过程中，PGE的行为主要受其溶解度的控制。

The PGE behaviour during alteration is controlled by the dissolubility .

相对较大的δ18O值变化范围，说明其成因与高温超固相热液蚀变作用有关。

The big variation of δ ~ 18O values reflects their genesis was related to supersolidus hydrothermal alteration .

火山岩的Au背景值高，火山岩的后期蚀变作用、构造活动及岩浆侵入作用既使火山岩中的金活化，又带入了深部的金，有利于金矿成矿。

The volcanic rocks are high in Au background value . The alteration and magma intrusion happened at late are favorable to Au ore formation for it not only made the Au activation , but also brought Au from deep .

LA-ICPMS锆石原位微量元素研究显示，本区锆石经历了弱的变质重结晶作用，且可能遭受到后期热液蚀变作用的改造；

LA-ICPMS in situ trace elements studies indicate that the zircons experienced weak metamorphism and may also undergo hydrothermal alteration later .

如果热液蚀变作用没有发生，这些玄武岩的所有数据点在Nd-Sr相关图上将可能位于地幔系列内部。

On the Nd-Sr correlogram , all data points are should plot inside the mantle array , if hydrothermal alteration of basalts did not occur .

AOA可能在星云中还经历了热蚀变作用的过程，橄榄石和霞石颗粒均具有高的FeO质量分数（29.1%～34.4%，4.04%～9.70%），表明蚀变反应发生在高逸氧度的星云环境下。

It is possible that thermal alteration would have happened in solar nebula . The high FeO content of olivine ( 29.1 % ~ 34.4 % ) and nepheline ( 4.04 % ~ 9.70 % ) in AOAs suggest the alteration probably take place under high oxygen fugacity .

沉积环境对降落火山灰蚀变作用的影响&以大青山晚古生代煤系为例

The Effect of Depositional Setting on Alteration of Landing Ash

河北东坪金矿田蚀变作用研究

Study on the alteration of Dongping gold orefield , Hebei

交代蚀变作用和它的分带是成矿模式的基础；

Metasomatic alteration and its zonation is the important base for the metallogenic model .

圈闭中油气的次生蚀变作用

Secondary alteration of trapped oil and natural gas

准噶尔盆地西北缘稠油特性及蚀变作用类型

Properties and alteration of viscous oil in the northwest margin of the Junggar Basin

在一些地区蚀变作用非常广泛，在希腊蛇纹岩是常见的。

Alteration is very extensive in some areas and serpentinites are common in Greece .

蚀变作用的多原岩系统及质量平衡

Multiple precursor systems and mass balance of alteration

这些黄铁矿成因复杂，并且可能普遍受到热液蚀变作用影响。

These pyrites have complex origins , and most of them may undergo hydrothermal alterations .

冲绳海槽浮岩的蚀变作用原因

Alteration of pumice in the Okinawa Trough

硫酸盐热化学还原反应对烃类的蚀变作用

Alteration of thermochemical sulfate reduction to hydrocarbons

地热流体及其循环蚀变作用导致银矿、钠基膨润土矿等系列矿产的形成，并建立了矿床成矿模式。

A metallogenic model of the ore deposits has been set up in this paper .

个旧矿区的热液活动及热液蚀变作用很突出，花岗岩中的热液蚀变有：碳酸盐化、绿泥石化、云英岩化、绢云母化、钠长石化。

Hydrothermal alterations in granitic rocks include carbonatization , chloritization , greisenization , sericitization and albitization .

围岩蚀变作用不强。金矿物为自然金，粒度细、成色高。

Gold mineral is native gold , its grain size is fine , its fineness is high .

构造蚀变作用与铀成矿

Tectonic alteration and uranium mineralization

加拿大安大略西北部卡梅伦湖金矿床的地质背景、构造和蚀变作用

The Cameron Lake Gold Deposit , Northwestern Ontario , Canada : Geological Setting , Structure , and Alteration

文中对它的地质产状形态、岩石学、岩石化学和交代蚀变作用等方面作了阐述。

This paper has described geologic occurrence and shape , petrology , petrochemistry and replace-alteration processes of the rock bodies .

除深部相浸煮蚀变作用外，其余3种热水岩溶作用都可伴生和引起地质灾害。

Except the simmering in deep area , other three kinds of hydrothermal karst would associate and induce geological disasters .

研究认为花岗岩浆的侵位、区域性断裂的多次脉动作用及蚀变作用是区内钨锡矿形成的重要控制因素。

Research indicates that the main ore-controlling factors are intrusion of granitic magma , multiple activities of regional faults and greisenization .

塞浦路斯特罗多斯型洋壳最上部500米剖面（CY&1钻孔）中的不透明矿物、磁性及其蚀变作用的研究

Cyprus Drillhole CY-1 : Oxide Petrography , Magnetic Properties and Alteration in a Section the Uppermost Half Kilometer of Troodos Type Oceanic Crust

成岩流体改造和蚀变作用使火山碎屑物质形成大量次生孔隙，从而改善了砂岩储层的物性。

Reaction between diagenetic fluid and volcanic materials can result in abundant secondary pore , which improved physical characteristics of the reservoir sandstone .

中新生代以来矿田构造活动频繁，岩石蚀变作用强烈，尤其是新生代以来的构造活动对铀矿成矿作用有重要的影响。

Because of frequent tectonic movements and intensive alteration since Mesozoic , especially in Cenozoic the tectonic activities play an important part to uranium mineralization .

近些年来对斑岩型矿床研究过程中，蚀变作用与矿化作用之间的关系广泛受到地质学者的关注。通过矿床蚀变特征研究，对矿产资源勘察具有指导或辅助的作用。

In recent years , more and more geologists have been interested in the relationships between alteration and mineralization , during the study of porphyry-type deposits .

根据断裂内岩脉侵入、岩石蚀变作用、结构面特征和构造岩类型的分析研究，认为断裂具有多期活动性的特点。

According to research of the dyke injection , rock alteration , tectonite type and structure plane in fractures , they have characteristics of polystage activity .

综合分析红石地区燕山晚期的热液蚀变作用，探讨不同期次、不同类型的蚀变及交代蚀变岩与金、银矿化之间的关系；

Through integrative analysis on the hydrothermal alteration , the paper talks about the relationship between alteration of different terms and types and the mineralization of Au-Ag ;