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本文通过水文地球化学及稳定同位素地球化学的研究,建立了日本鹿儿岛县阿多火山陷落盆地的地下热水系模式。在地热作用及火山喷气作用的影响下,深循环的海水被加热形成本源热水,本源热水在上升途中发生气一液分离,产生两类性质不同的地下热水.热水出露地表,由于浅层地下水的混入,形成了本区的指宿及开闻温泉群.浅层地下水及表层水有四种类型.
In this paper, through the study of hydrogeochemistry and stable isotope geochemistry, the pattern of underground hot water system in Adu volcanic sub-basin of Kagoshima Prefecture, Japan was established. Under the influence of geothermal activity and volcanic jet effect, the deep-circulating seawater is heated to form hot water of origin, and the hot water of origin is separated by gas-liquid separation on the way up, resulting in two types of underground hot water with different properties. Due to the mixing of shallow groundwater, there are four types of shallow groundwater and surface water, namely, Ibusuki and Kansu Onsen springs in this area.