西藏中部地热区的钻孔热流测量

1985年以来,在西藏中部的羊八井、拉多岗和羊应乡等地热区测得了一批传导型或传导-对流型钻孔热流值。来自羊八井深部温度场的信息,提供了量级为83—108mW/m²的传导热流;在拉多岗和羊应乡分别获得了185mW/m²和194mW/m²两个传导-对流型热流数据。它们为阐明喜马拉雅地热带形成的深部热背景和浅层地壳热源结构提供了有用的信息。

BOREHOLE HEAT FLOW MEASUREMENTS IN SOME GEO-THERMAL AREAS IN CENTRAL TIBET

Since, 1985 a series of borehole heat flow data of conductive or conductive-convective types in some Central Tibetan geothermal areas such as Yangbajing, Laduogang and Yangyingxiang etc. have been obtained. The information from the temperature field at depths of the Yangbajing Geothermal Field offers a conductive heat flow value ranging from 83 to 108 mW/m2, whereas the measurements in the Laduogang and Yangyingxiang geothermal areas result in gaining conductive-convective heat flux data of 185mW/m2 and 194mW/m2, respectively. They provide useful information for the study on the deep-seated thermal background of formation of the Himalayan Geothermal Belt and the suberustal heat source structure.