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The subject of the study is the yedoma ice complex, which locates in the Batagaika depression, Sakha Republic, Russia. The oxygen and hydrogen stable isotope composition, and the content of the dissolved forms of minor and major elements were studied for the first time in ice-wedges of Batagaika depression, which makes the novelty of the study. The isotope composition of the two most saline ice-wedges located in the upper and lower parts of the Batagay depression indicates that they were formed in a close temperature range, the average winter temperature was close to -34/-35 °C, and the average January air temperature was -51/ 53 °C. The ice-wedge with the lowest content of all the trace elements was formed in more severe conditions, the average winter air temperature was close to -36 °C, and the average January air temperature was -54/-55 °C.