| 蚀变岩质量平衡计算方法介绍 |
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| 引用本文： | 张可清,杨勇. 蚀变岩质量平衡计算方法介绍[J]. 地质科技情报, 2002, 21(3): 104-107 |
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| 作者姓名： | 张可清 杨勇 |
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| 作者单位： | 中国地质大学,湖北,武汉,430074 |
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| 基金项目： | 国家留学基金资助项目，中国地质大学 (武汉 )留学回国人员科研启动基金资助项目 |
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| 摘 要： | 针对流体与岩石之间在反应（蚀变）过程中普遍存在的闭合问题，指出不能直接比较蚀变前后岩石成分的质量，而需要进行质量平衡计算，在这种计算中，首先要有合理的假设前提，即已知岩石质量变化前后的体积变化，或者岩石在质量变化中存在着不活动元素。介绍了选择不活动元素的多种方法及质量平衡计算的原理和方法。
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| 关 键 词： | 质量平衡 不活动元素 闭合 蚀变岩 岩石 地球化学 |
| 文章编号： | 1000-7849(2002)03-0104-04 |
| 修稿时间： | 2001-09-17 |
INTRODUCTION OF THE METHOD FOR MASS BALANCE CALCULATION IN ALTERED ROCKS |
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| ZHANG Ke qing,YANG Yong. INTRODUCTION OF THE METHOD FOR MASS BALANCE CALCULATION IN ALTERED ROCKS[J]. Geological Science and Technology Information, 2002, 21(3): 104-107 |
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| Authors: | ZHANG Ke qing YANG Yong |
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| Abstract: | Reactions between mineralizing hydrothermal fluids and host rocks have been studied quantitatively in ore deposit since 1960's.However,the closure problem makes it impossible to compare directly the compositions of the altered rocks with those of the fresh rocks.Hence,some fundamental assumptions should be made in mass change calculation,such as the rock sizes before and after the alteration and the immobile elements in the rock during alteration.This paper introduces several approaches for the selection of immobile elements and the principle and Gresens' method of mass change calculation. |
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| Keywords: | mass balance immobile element closure altered rock |
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