关键词: 福建, 温泉, 铲状断裂系统, 岩浆热源, 深循环水热系统

Abstract:

In recent years, the voice that Fujian has hightemperature geothermal systems with magmatic heat source is very high. So it is a must to answer the important question. The author reviews the researched achievements of predecessors and discusses following topics: the geological setting of geothermal activity in Fujian, distribution of thermal springs, types of geothermal systems, magmatic heat source in the depth and heat structure of crust in this paper. According to the setting of geological tectonics in Fujian Province, a large number of mediumtemperature (90-150 ℃) and lowtemperature (＜90 ℃) hydrothermal systems are controlled by faults and become the warm water reservoir by means of deep circulation. The limited hot water systems with higher temperature (＞150 ℃)formed through deep circulation in the depths of earth crust. The author thinks that Fujian Province does not have the tectonic setting to form hydrothermal systems with magmatic heat sources.

Key words: Fujian Province, thermal spring, shovelshape fracture system, magmatic heat source, deepcirculation hydrothermal system