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首页> 外文会议>International Association of Hydrogeologists congress >~(87)Sr/~(86)Sr and ~(37)C1/~(35)C1 signatures of CO_2-rich mineral waters (N-Portugal): Preliminary results
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~(87)Sr/~(86)Sr and ~(37)C1/~(35)C1 signatures of CO_2-rich mineral waters (N-Portugal): Preliminary results

机译：〜（87）SR /〜（86）SR和〜（37）C1 /〜（35）C1富含CO_2矿物水域的C1签名（N-Portugal）：初步结果

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摘要

In this paper Sr and Cl isotope geochemistry was used to improve knowledgment on the relations between some hot (76°C) and cold (17°C) HCO_3-Na-CO_2-rich thermomineral waters and percolated rocks. So, rain, surface and thermomineral waters from Vilarelho da Raia -Pedras Salgadas region (N-Portugal) were analysed for ~(87)Sr/~(86)Sr and ~(37)C1/~(35)C1 ratios as well as for Sr, Cl and other major element concentration. The Sr isotope composition of granites and limestones was also analysed and compared with the Sr isotope composition of waters. Previous δ~(18)O, δ~2H and ~3H studies on these thermomineral waters suggested different underground flow paths. This trend is corroborated either by the 1/Sr vs ~(87)Sr/~(86)Sr ratios (showing three end-members of a concentration trend from the rain waters towards the mineralised waters) or by the Cl isotope geochemistry. The similarity of the ~(87)Sr/~(86)Sr ratios of the plagioclases and of the water dry residues suggests that dissolved Sr is preferentially contributed by plagioclases
机译：在本文中，SR和Cl同位素地球化学用于改善一些热（76℃）和冷（17℃）HCO_3-Na-Co_2的热质水域和渗透岩石之间的关系的知识。因此，分析了来自Vilarelho da Raia -pedras Salgadas区域（N-葡萄牙）的雨，表面和热质水域，〜（87）Sr /〜（86）Sr和〜（37）C1 /〜（35）C1比率至于SR，CL和其他主要元素浓度。还分析了花岗岩和石油酮的SR同位素组成，并与水的SR同位素组成进行了比较。先前的Δ〜（18）O，δ〜2h和〜3h关于这些热质水域的研究表明了不同的地下流动路径。这种趋势是通过1 / sR〜（87）SR /〜（86）SR比（显示来自雨水朝向矿化水域的浓度趋势的三个末端成员）或Cl同位素地球化学。磷酸锌酶和水干燥残余物的〜（87）Sr /〜（86）Sr比的相似性表明溶解的Sr优先由Plagioclase贡献

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