Exploration of the possibility of hot dry rock occurring in the Qinghai Gonghe Basin

The Qinghai Gonghe Basin is located in the"Qin Kun Fork"Cenozoic fault basin.Oil-drilling data show that the Cenozoic overburden thickness is greater than 5000 m.The basin margin structure-magma belt is well developed;active faults and hot springs are intensive.There are 6 hot springs with temperature ranging from 60℃ to 93.5℃.The hot springs occur in groups in the inner basin.Geothermal drilling data reveal that the temperature in depth is quite high.In the 1203 m borehole(R1),the measured bott...