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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 2 5～ 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。
Tianjin is located in the northern part of North China Plain, where sedimentary basins are rich in underground hot water. The main thermal reservoir is the Paleozoic and upper and middle Proterozoic carbonate rocks with hot water temperatures slightly above 90 ° C. The caprock is Cenozoic sedimentary and consists of 13 sandstone aquifers 2 5 ~ 70 ℃ hot water. The temperature of hot water increases with the depth of the basin. All aquifers in the hot water are medical mineral water, beneficial to human health.