Abstract

The results of long-term studies of a group of aufeis-forming Buluus groundwater sources are given. A stow, which has been formed by the spring, contains the drainage area of the suprapermafrost–intrapermafrost aquifer, which is widespread in the sand deposits of the bestyakhskaya terrace of the Lena River in Central Yakutia. The analysis of observations of 1964–2017 showed stable water chemistry in Buluus spring at the long-term scale. Considerable seasonal variations of water chemistry are typical of low-discharge springs, which start functioning after becoming free of aufeis. The spring water also shows higher concentrations of lithium and fluorine. The possible causes of the different chemistry of spring water are discussed, with special attention paid to the local activity of rock freezing and thawing processes in the aufeis valley. It is shown that groundwater samples are to be taken from all springs in the areas of their group discharge with the aim to assess the effect of natural and technogenic factors on the permafrost–hydrogeochemical conditions.

中文翻译：

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雅库特中部泄洪区超多年冻土-超寒带地下水水化学特征

摘要

给出了对一组形成假象的布鲁斯（Buluus）地下水源进行长期研究的结果。春季形成的储层包含了超霜冻-超霜冻含水层的流域，该流域广泛分布在雅库特中部利纳河的bestyakhskaya阶地的沙沉积中。对1964-2017年观测资料的分析显示，布鲁斯春季的水化学长期保持稳定。低排放弹簧具有典型的水化学季节性变化，这种变化在没有紫罗兰后开始起作用。泉水还显示出较高浓度的锂和氟。讨论了泉水化学成分不同的可能原因，并特别关注了奥菲斯山谷的岩石冻结和融化过程的局部活动。