污染源分布在径流排泄区的泉域，岩溶水污染不是很明显；
No obvious pollution, the springs polluting fountain locate in drainage areas .
重庆位于地下热水活动的汇集、排泄区，地下热水资源丰富。
Chongqing is located in an area with7plenty of geothermal water resource, and the activities of geothermal water are concentrated and discharged there.
形成于古水热系统排泄区（减压区）的下庄花岗岩型铀矿床是地下热水与岩石相互作用的产物。
The granite type uranium deposit in Xiazhuang, formed in the discharge area of fossil hydrothermal system, is a product of thermal water_rock interaction.
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