摘要
:矿物分解动力学的研究可以大大提高我们对地质作用过程中矿物生长、元素和流体迁移等过程的了解。本文在介绍固相反应动力学原理的基础上 ,讨论了常压下研究矿物分解动力学的热重分析法和电导率法 ,指出精确确定高压下的反应分数 ,是研究高压下矿物热分解动力学的关键。提出了高压下确定反应分数的方法。
The thermal decomposition kinetics of minerals is a fundamental but poorly understood geological process. Knowledge about thermal decomposition kinetics of minerals will improve our understanding the processes of crystal growth, element immigration and fluid flow in geological condition. The principle of reaction kinetics of solid is introduced in this paper at first, and then two methods, thermogravimetry and conductivity method, usually used in researching the decomposition kinetics at atmosphere pressure are discussed. At high pressure, the key for determining the mineral decomposition kinetics is the measurement of the reaction fraction and two methods are recommended. One is statistic method, which measures the volume of new formed mineral optically. The other is electrical conductivity method, which measures the electrical conductivity during mineral decomposition.
出处
《矿物岩石地球化学通报》
CAS
CSCD
2001年第3期194-197,共4页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
国家自然科学基金项目 ( 10 0 32 0 40和 4990 40 0 5 )
关键词
反应动力学
热重分析法
电导率法
高压
decomposition kinetic
thermogravimetry method
conductivity method
mineral
