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绵阳市安州区“沸泉”地质成因分析
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Abstract:
通过水文地质调查、地球物理勘探、水文地质钻探、分析测试以及动态观测等工作，查明“沸泉”出露于第四系地层覆盖的河谷平坝区，埋藏产出于三叠系嘉陵江和雷口坡组碳酸盐岩地层中，沸泉在其西北部的中山裸露碳酸盐岩地层区接受大气降水补给，通过打鼓坪和杜家坪导水断层向东及东南部的河谷平坝径流，遇碎屑岩地层阻隔出露成泉。该泉补给路径相对较长，经溶滤吸附、离子交换等物理化学过程，形成了特定水质的饮用天然矿泉水。
Through hydrogeology survey, geophysical exploration, hydrogeology drilling, analytical test and dy-namic observation, we found that the “Boiling Spring” is emerged on the flat dam of river valley which is covered by the quaternary strata, and buried in Triassic carbonate formation in Jialing River and Leikou Slope group. The boiling spring is supplied by meteoric water in the exposed carbonate formation in the northwest Zhongshan. Through transmissibility fault of Daguping and Dujiaping, it formed river valley dam runoff to the east and southeast, and it is can be blocked by clastic rock strata and then emerges as spring. The spring replenishment path is relatively long; through the physical and chemical processes such as leaching, adsorption and ion exchange, the drinking natural mineral water with specific quality is formed.
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