Sediments from cryoconite holes and dirt cones on the surface of Svalbard glaciers: main chemical and physicochemical properties

Nizamutdinov, Timur; Mavlyudov, Bulat; Polyakov, Vyacheslav; Abakumov, Evgeny

doi:10.1007/s11631-022-00586-3

Cited by 6 publications

(2 citation statements)

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“…Bottom moraines and glacial sediments of this study area do not show exceedance of MPC levels, with zinc content approaching MPC levels in glacial lake sediments on the slope towards the Russian settlement of Barentsburg in Grenfjord Bay. These data correspond with previously obtained information on the chemical composition of cryoconite from the glaciers of West Spitsbergen [58]. Comparing with natural concentrations in the Upper Continental Crust (UCC), we can note that the natural background of trace elements is within those concentrations that we obtained in the cryoconite on the glacier surface.…”

Section: Features Of Accumulation Of Trace Elements In Cryoconite On ...supporting

confidence: 90%

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Concentration of Trace Elements in Cryoconites of Mountain and Polar Regions of the World

et al. 2023

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The surface of mountain glaciers is a place of accumulation of various biogenic organomineral and mineral compounds. As a result of intensive mass deglaciation of glaciers due to climate change and anthropogenic activity, this material can significantly affect the transformation of the landscape in the periglacial zone. Thus, this work considers the contamination of the surface of the Arctic, Antarctic, and Caucasian glaciers by priority pollutants. Atomic absorption spectroscopy was used to analyze trace elements (Cu, Zn, Ni, Cd, Pb) from cryoconite deposits. It was revealed that the cryoconite dust on the Ray-Iz glacier (Polar Urals) has a high level of nickel contamination, which comes to the glacier from local rock materials as a result of their weathering. The lowest concentrations of trace elements are found in one of the Arctic plots located at Mushketov and Aldegonda glaciers, the Caucasus, and the Antarctic, which is due to their relatively low content in the composition of rocks and the relatively low contribution of long-range transport of matter to the polar regions. Contamination of moraine sediments in the periglacial zone can make a significant contribution to the formation of the soil cover of these territories, the pollution of water bodies near the glacier, as well as affect the quality of life of the people living in the immediate vicinity of the mountain areas.

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Section: Features Of Accumulation Of Trace Elements In Cryoconite On ...supporting

confidence: 90%

“…The Polar Urals is one of the key mining sites, producing chrome ore, iron ore, and manganese ore, as well as a number of non-ferrous metals-copper, nickel, and aluminum. This can further lead to an increase in trace element content on the surface of glaciers as well as the surrounding soils [58].…”

Section: Discussionmentioning

confidence: 99%