热液系统中水-岩反应前锋传播速度基本模型

来源期刊：中南大学学报(自然科学版)1994年第6期

论文作者：邓吉牛 戴塔根

文章页码：669 - 673

关键词：热液; 孔隙度; 蚀变分带; 物质输运-化学反应耦合

Key words：hydrothermal solution; porosity; altered mineral zoning; coupled mass transport-chemical reaction

摘    要：在多孔介质岩石中形成的热液蚀变矿物分带并不是完全受制约水-岩反应的物理化学条件控制。主要控制因素是蚀变反应前锋传播速度差异,蚀变反应前锋传播速度受物质输运-化学反应耦合作用动力学因素制约,表现在水-岩反应中水相物种的计量系数和蚀变岩石孔隙度。

Abstract: The zoning of hydrothermal altered minerals formed in porous rocks is not completelycontrolled by the physicochemical conditions limiting water-rock reactions,Geochemical kinetic studies show that the main cause is the different propagating velocity of alteration reaction frontiers. The coupled mass transportchemical reaction processes affect the propagatingvelocity of altered reaction frontier througli the different stoichiometric coefficient of solutionspecies in water-rock reactions and the final porosity of altered rocks.