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The research is conducted on the Holocene ice wedges exposed in the outcrop of the first marine terrace near the town of Anadyr, on the east of the Chukchi Peninsula, on the coast of Onemen Bay. Polygonal Relief is clearly traced on the surface of the first sea terrace in the area of explorations, the size of the polygons is about 8x12 m. In the exposed terrace, turf with a capacity of about 1.5 m is striped, underlied with sand clay with &amp;nbsp;capacity up to 2 m; below is the horizontally-stratified and. Ice wedges are embedded the turf (head of wedges) and in the underlying clay sand. The ice of wedges is vertically stratifies, yellowish gray. Ice wedges are also striped in turf&amp;nbsp; outcrops with capacity of up to 2.5 m, embedded in form of a lens from the terrace surface. Ice from three most fully exposed ice wedges was sampled for hydrochemical analysis. A total of 20 ice samples were collected from Holocene ice wedges, as well as ice from modern ice veinlet and water from Onemen Bay. It was found that mineralization of the studied Holocene ice wedges is low, does not exceed 80 mg/L, Na+, Ca2+, and Cl- dominate. Similar values of mineralization and ionic composition were obtained for modern ice veinlet. The obtained data correspond with data on ice wedges studied in other regions of Chukotka, both continental and coastal. Mineralization of most of the previously studied ice wedges did not exceed 150 mg/L. Low values of mineralization of ice wedges near Anadyr demonstrate mainly meteoric source of water forming ice, i.e. winter precipitation, prevalence of sodium and chlorine indicates the capture of sea aerosols by precipitation or wind introduction of droplets from the water area of the Onemen Bay to the surface of the snow cover.	

Hydrochemical composition of Holocene ice wedges near the town of Anadyr