云南地热资源及开发利用

GEOTHERMAL RESOURCES OF YUNNAN AND EXPLOITATION

云南位于喜马拉雅－特提斯构造域与滨太平洋构造域的复合部位，地质构造十分复杂，新生代火山岩浆活动激烈。特殊的地质地理条件，形成了丰富的地热资源，使云南成为我国地热资源大省。对云南地热资源的研究已有２０多年的历史，然而地热资源开发利用的层次却较低，高温地热资源至今还未得到真正利用。本文通过对前人资料的综合研究，将全省地热资源按温度分为过热水－高温、中、低温和低温三种类型；按成因分为火山岩浆型、新生代盆地型和褶皱山区断裂带型，并对地热带的分布规律及地热田的成因机理进行了分析研究，描绘了全省地热资源的总貌，继而指出地热资源在工业、农业、矿业、医疗饮疗保健、旅游等事业方面广阔的开发利用前景。

Yunnan is located in the composite part of the Himalayan-Tethys structural domain and the circum-pacific structural domain, with very complicated geological structures and intensive Cenozoic volcanic magmatism. Under these psecial geological-geographical conditions,abundant geothermal resources have been formed in yunnan, which is one of the most important provinces rich in geothermal resources of china. The study history of geothermal resources in yunnan is more than 20 years, but the exploitation level of geothermal resouces is very low, especially the high T geothermal resources have not been ultilixed seriously. In this paper, basing upon a comprehensive study of previous data, the geothermal resources of Yunnan are divided intor 3 types according to temperature, ie excess heating-high T, medium-low T and Low T; or 3 types of volcano-magmatic, Cenozoic basin,fault zone in fold orogenic area according to genesis. Moreover, the Distribution and genesis of geothermal zones are studied and analysed, the outline of Yunnan geothermal resources is depicted. And the wide exploitation potential of the geothermal resources in industry, agriculture, mining, medicalhealth work and tourism is pointed out.