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陶波火山带(Taupo Volcanic Zone)位于新西兰北岛的中部,呈北东向延伸,长270公里,宽约16—24公里(图1).这个火山带是新西兰地热田的主要分布地带,已有二十余年的勘探与开发历史.虽然近百年来,在这里做了大量的地质与地球物理的工作,但至今还存在着一些重大的地质问题没有解决.一般都认为,火山活动与地热田是受活动断裂控制的.然而,沿着活动断裂并不是在每一个地点都可以出现活火山和地热田的.本文将重点讨论陶波火山带活动断裂的特征、性质及其与地热田的关系.
The Taupo Volcanic Zone is located in the central North Island of New Zealand and extends north-east, 270 km long and 16-24 km wide (Figure 1). This volcanic zone is the main distribution area of New Zealand’s geothermal field and has been There are more than 20 years of exploration and development history.Although a great deal of geological and geophysical work has been done here in the last hundred years, there are still some important geological problems that have not been solved so far.It is generally believed that volcanic activities and geothermal However, along active fault, active volcanoes and geothermal fields may not appear in every locality.This paper will focus on the characteristics and properties of active faults in Taupo volcano belt and their relations with geothermal field relationship.