Structural control of Red River Fault on geothermal system in Yinggehai Basin
This study uses the geothermal background of the Yinggehai Basin to systematically evaluate the role of the Red River Fault in controlling the source of water,pathway of fluid,reservoir,and cap layer of the geothermal system.The analysis of samples of water and gas show that the fracture structure plays an important role in controlling the geothermal water cycle.The differential deformation of the Red River Fault significantly influences the range of planar distribution and heterogeneity of the depth of longitudinal development of rift-type hydrothermal reservoirs.The geothermal system of the Yinggehai Basin is grounded in thermal mantle material as the main source of heat,with the Red River Fault Zone and the bottom-penetrated zone of central depression in the basin acting as the major channels.Moreover,the rift-type hydrothermal reservoirs,upper large watercourses,submarine watercourses,submarine reservoirs and cap layers,submarine fans,deltas,and other storage groups in the upper part serve as the main thermal reservoirs,while the giant mudstone of the Yinggehai Formation acts as the main covering layer.
Yinggehai BasinRed River Faultbottom fissure zonestructural control of geothermal resourcesgeothermal system