山东省深部岩溶热储地热水同位素特征分析

Study on Isotopic Characteristics of Deep Karst Geothermal Water in Shandong Province

摘要:

通过现场调查并对不同类型深部岩溶热储地热水进行采样，测定其δD，δ18O稳定同位素与14C放射性同位素，对全省深部岩溶热储地热水成因、年龄、热储性质及水力联系等进行了分析。结果表明：山东省深部岩溶热储地热水属大气降水成因，其形成年代久远，补给途迳长，径流速度缓慢。同一构造单元的滨海孤岛地区、齐河与聊城地区水力联系密切，其他地区水力联系较差。

Abstract:

Through investigation and collecting samples of different deep karst geothermal water, isotope δD，δ18O and radioactive isotope 14C have been determined, and the origin, age, property of geothermal reservoir and hydraulic connection have been analyzed. It is showed that the origin of deep karst geothermal water in Shandong is air precipitation. Its formation age is antique, recharge way is long and runoff velocity is slow. Hydraulic connection of the same strucute in coastal area and lonely island zone，Qihe and Liaocheng area is very close, while it is weak in other places.