Current Development of Tectonic-Geochemical Studies on Active Fault Zones

Abstract

Various kinds of complicated tectono-geochemical processes always occurred in active fault zones along with their formation and evolution,which showed many abnormal phenomena such as the growth of stress minerals,the formation of surface micro-appearances of mineral particles in the fault gouge and/or rocks,gasous isotopic anomaly and so on.Systematic researches on the abnormal phenomena could be helpful to obtain significant information on the activity,opening and sealing properties and the three-dimensional layout,especially the fault depth etc.in active fault zones.Because active fault zones are normally very complicated with numerous physical-chemical processes,there are still large space and challenges for geochemical researches on fault gouge,fluid geochemistry,and water-rock interactions in the active fault zones.