胶东半岛地热资源的特征

胶东半岛是山东省地热资源最丰富的地区，地热资源以天然温泉形式产出，地热系统属中低温深循环对流型，分布区域较为集中，大部分温泉出露在背斜核部与多组断裂交汇处．稍为偏高的大地热流是其主要热源，他表水是地下热水的主要补给水源，热水化学成分差异很大，水质以中性和偏碱性为主．胶东半岛地热主要用于洗浴和疗养，利用率很低，大量地热资源尚待勘探开发．

Characteristics of geothermal resources in Jiaodong Peninsula

Jiaodong Peninsula is of the most rich of geotherrnal resources in Shandong Province,the preduct of geothermal resources is natural hot spring,the geothermal system is the low-medium temPerature geothertnal system of convective type,the area geothermal distribution is concentrated,most of the hot springs are mainly distruted in the cores of anticlines and the intersection of fractures. The geothermal system is heated by normal to relatively high heat flow, surface water is the main supply resource of ground hot water, the chendcal compositions of warm water are great different,water quality is neutral or slight basicity. Bath and health services are the main utilization of geothermal resources,the utilization ratio of this resources is very low,great geotherrnal resources need exploration and exploitation.