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Lithology and Mineral Resources

, Volume 47, Issue 1, pp 1–17 | Cite as

The salt composition of rivers in Wrangel Island

  • V. Yu. LavrushinEmail author
  • A. R. Gruzdev
Article

Abstract

Pioneer information about the chemical composition of river water in Wrangel Island has been obtained. It is shown that the water composition reflects the lithogeochemical specifics of primary rocks and ore mineralization. In contrast to many areas of the Russian Far North, river waters of the island are characterized by an elevated background value of total mineralization (i.e., total dissolved solids, TDS) (0.3–2 g/l) and specific chemical type (SO4-Ca-Mg). This is related to abundance of Late Carboniferous gypsiferous and dolomitic sequences in the mountainous area of the island. It has also been established that the salt composition of some streams is appreciably governed by supergene alterations of the sulfide mineralization associated with the quartz-carbonate vein systems. They make up natural centers of surface water contamination. Waters in such streams are characterized by low pH values (2.4–5.5), high TDS (up to 6–23 g/l) and the SO4-Mg composition. These waters are also marked by anomalously high concentrations of heavy and nonferrous metals, as well as REE, U, and Th.

Keywords

Gypsum River Water Sulfide Mineralization Late Carboniferous Oxidation Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  1. 1.Geological InstituteRussian Academy of SciencesMoscowRussia
  2. 2.FGU Wrangel Island State ReserveChukotka administrative districtChaun region, PevekRussia

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