Abstract: Tianjin is located at north part of northern China plain, where is rich in thermal water in sedimentary basin. The main reservoir is carbonate rocks of the Paleozoic and upper and middle Proterozoic group, which contain thermal waters with temperature of more than 90℃. The cap rock is Cenozoic sedimentary rocks with thickness of more than 1000m, which contains thermal water with temperature from 25 to 70℃ in 13 sandstone layers. The temperature of thermal water is steady growth along with the deepen of basin. All thermal waters in different aquifers are medical mineral waters, which is conducive to good health.

Key words: Tianjin, thermal mineral waters, medical mineral springs, natural drinking mineral springs

摘要： 天津位于华北平原的北部，那里的沉积盆地含有丰富的地下热水。主要的热储层为古生界和上、中元古界的碳酸盐岩层，所含热水的温度略高于90℃；盖岩层为新生界沉积层，在13个砂岩含水层中含有25～70℃的热水。热水的温度随盆地深度的增加而增加。所有含水层中的热水都是医疗矿水，有益于人类的健康。

关键词: 天津, 热矿水, 医疗矿泉, 天然饮用矿泉