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Geochemical barriers to elemental migration in sulfide-rich tailings; three case studies from western Siberia

Anna A. Bogush, O. G. Galkova and N. V. Ishuk
Geochemical barriers to elemental migration in sulfide-rich tailings; three case studies from western Siberia (in Frontiers in environmental geoscience 2011, K. A. Hudson-Edwards, N. J. G. Pearce and R. Warrender)
Mineralogical Magazine (December 2012) 76 (7): 2693-2707


This study describes geochemical barriers that have developed at three different localities in sulfide-rich tailings in the Kemerovo region of Western Siberia, Russia. Iron oxyhydroxides, gypsum, malachite, chalcanthite, goslarite, bianchite, gunningite and copper and zinc chlorides crystallized in the sequence specified at an evaporative barrier around glassy slag produced by the Belovo zinc processing plant. A complex cemented barrier that has developed within the old Salair sulfide tailings contains two well defined layers: an upper layer containing Fe(III) minerals and gypsum as cements in which Pb, As, Mo, Ni and Co have been deposited; and (2) a lower calcite- and gypsum-bearing layer, in which phases containing Zn, Cd and Cu have been deposited. A complex organic-mineral barrier below the Ursk sulfide tailings consists of peaty organic matter, clay minerals and iron oxyhydroxides cemented by gypsum. Elements that have leached from the tailings are present in this barrier in a variety of different forms: Ca and Mn are present as water-soluble species; Cu, Fe and Zn are present as species produced by interaction with organic matter via ion-exchange, metal humate formation and cation bridging in organic-mineral complexes; Pb and As are co-precipitated with and/or adsorbed onto iron oxyhydroxides; gold has been deposited as minute particles of native metal. The mechanisms for the formation of the different geochemical barriers are discussed.

ISSN: 0026-461X
EISSN: 1471-8022
Serial Title: Mineralogical Magazine
Serial Volume: 76
Serial Issue: 7
Title: Geochemical barriers to elemental migration in sulfide-rich tailings; three case studies from western Siberia
Title: Frontiers in environmental geoscience 2011
Author(s): Bogush, Anna A.Galkova, O. G.Ishuk, N. V.
Author(s): Hudson-Edwards, K. A.
Author(s): Pearce, N. J. G.
Author(s): Warrender, R.
Affiliation: Russian Academy of Sciences, Siberian Branch, V. Sobolev Institute of Geology and Mineralogy, Novosibirsk, Russian Federation
Affiliation: University of London Birkbeck, London, United Kingdom
Pages: 2693-2707
Published: 201212
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
Meeting name: Frontiers in environmental geoscience 2011
Meeting location: Aberystwyth, GBR, United Kingdom
Meeting date: 20110621June 21-23, 2011
References: 50
Accession Number: 2013-011028
Categories: Geochemistry of rocks, soils, and sedimentsEnvironmental geology
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
N54°19'60" - N54°28'00", E86°13'00" - E86°25'00"
Secondary Affiliation: University of Aberystwyth, GBR, United KingdomSRK Consulting, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201308
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