贵州息烽温泉地质成因分析

Geological Genesis Analysis of the Xifeng Hot Spring in Guizhou

贵州息烽温泉富含氡、锶等对人体有益的微量元素。在分析息烽温泉形成的地质背景基础上,利用构造地质、水化学和稳定同位素等手段,对温泉的成因进行了研究。研究表明,息烽温泉水源为大气降水,热源为深循环加热,循环深度约3 000m,热储温度达100℃以上。在洋水背斜北倾伏端,地热水受碎屑岩阻隔并混合浅表地下水而排出。为保障息烽温泉的可持续性,其周边磷矿勘探、开采的同时,应加强地热水的勘查和保护工作。

Xifeng hot spring in Guizhou, which is rich in trace elements such as radon and strontium that are good for people. On the basis of geological background analysis of the formation of the hot spring, the arti- cle studied the causes of the hot spring using structural geology, hydro-chemical and stable isotope etc. The article indicates the water supplies of the hot spring are atmospheric precipitation and the source of heat is deep circulation heating. The circulation depth is about 3 000 m, and the temperature of the reser- voir is above 100 degrees Celsius. On the north dip of Yangshui anticlinal, the geothermal water exits mix- ing with ground water after blocked by clastic rock. For the sustainable development of Xifeng hot spring, the company should protect the hot spring when prospecting for phosphate rock nearby.