摘要
青海共和盆地为一新生代断陷盆,具有良好地热地质背景与其东、西两侧构造岩浆带断裂型地热分布,构成秦昆接合部SN向地热带。另据CSAMT在海南州首府共和县恰卜恰镇地热勘查推断出一小型拉分盆地,兼有盆地传导型层状热储和断裂对流型带状热储的特征,提出拟建地热井位钻孔布置构造有利部位,建议孔深1200m。经钻探打出全省第一口水温高、水量大、水质优的地热井,发挥了CSAMT在地热勘查中的指导作用。
Gonghe basin in Qinghai is a Cenozoic depression basin with good geothermal geological background and geothermal distribution of fracture type on both east and west sides of fracture-magmata belt,forming a S-N striking geothermal belt.In addition,based on CSAMT survey,a small scale pull-apart basin has been extracted,showing the characteristics of basin conducted layer-shaped thermal reservoir and fracture convection type zonal thermal reservoir.A favorable location for the planned geothermal well drilling site is proposed in the paper,with a suggested hole depth of 1200m.A geothermal well with higher temperature, large water volume and superior water quality was hit by drilling and it shows that CSAMT is of great significance in guiding geothermal prospecting.
出处
《矿产与地质》
2010年第3期280-285,共6页
Mineral Resources and Geology
