Discussion of Questions Related to Geothermal Research and Application

Abstract

Geothermal research and application has an important significance for recognizing and solving some questions in geotectonics, prospecting of mineral deposits, hydrogeology and engineering geology. It is known that the distribution of geothermic fields coincides clearly with the basement and the shape of folded structures in many basins; and the geotectonic situation and the relative movement between the lithospheric plates strictly control the distribution of hot springs. Besides, researching the genetic relationship between the formation of geothermic anomalies and geothermal water, oil, natural gas, coal, salt and several metal deposits can provide the important information of searching the favorable structural location of above-mentioned mineral resources, comprehensively assessment and economical rational development. At the same time, according to the temperature equilibrium between underground water and surrounding rock, geothermic parameters and forms of isotherms the flow rate and flow direction, and supplement, runoff and discharge conditions of artesian basins or confined water systems can be determined. By way of investigating the underground temperature, the high geotemperature at a depth can be predicted that may give the necessary geological reasons for compiling an engineering project and proposing the prevention and care measures of "thermal harm"; and "turn harm into benefit". The paper discusses above-mentioned questions related to the geothermal research and application.