DOKOUPILOVÁ, Pavla, Ondřej ŠRÁČEK and Zdeněk LOSOS. Geochemical behaviour and mineralogical transformations during spontaneous combustion of a coal waste pile in Oslavany, Czech Republic. Mineralogical Magazine. London: Mineralogical society, 2007, 71/2007, No 4, p. 443-460. ISSN 0026-461X.
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Basic information
Original name Geochemical behaviour and mineralogical transformations during spontaneous combustion of a coal waste pile in Oslavany, Czech Republic
Name in Czech Geochemické chování a mineralogické změny během procesů spontánního hoření uhelné haldy v Oslavanech, České republika
Authors DOKOUPILOVÁ, Pavla (203 Czech Republic), Ondřej ŠRÁČEK (203 Czech Republic) and Zdeněk LOSOS (203 Czech Republic, guarantor).
Edition Mineralogical Magazine, London, Mineralogical society, 2007, 0026-461X.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10500 1.5. Earth and related environmental sciences
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.269
RIV identification code RIV/00216224:14310/07:00023834
Organization unit Faculty of Science
UT WoS 000253608700005
Keywords in English waste pile; coal; combustion; hematite; evaporation; Mg sulphates
Tags coal, combustion, evaporation, Hematite, Mg sulphates, waste pile
Tags International impact, Reviewed
Changed by Changed by: doc. RNDr. Zdeněk Losos, CSc., učo 2470. Changed: 29/6/2009 12:41.
Abstract
Geochemical processes and mineralogical transformations in the spontaneously combusting coal waste pile of the Kukla mine in Oslavany, Czech Republic, were investigated. The aims of the study were: (1) the characterization of secondary minerals; and (2) determination of processes which influence the mobility of elements in the pile. The pile burned from the late 19th century until the 1990s and has acquired a zoned nature, with original black material in the core of the pile, red material produced by burning close to the pile slopes and grey and white efflorescent salts precipitated on the pile top and slopes. Several mineral assemblages have been identified including (1) primary minerals in the black material including bituminous coal to anthracite, micas, pyrite and goethite; (2) hematite, spinels and corundum in the red material produced by pyrometamorphism; and (3) hydrated sulphates of magnesium including hexahydrite, konyaite and picromerite in efflorescent precipitates on the slopes of the pile. A conceptual model of geochemical processes in the pile includes seasonal changes with mineral dissolution during the wet season and precipitation of efflorescent salt minerals during the dry season. Formation of secondary minerals such as hematite, which is resistant to weathering and immobilizes hydrolysable Fe, may have a positive environmental impact in the long term.
Abstract (in Czech)
Předmětem práce je detailní výzkum změn v mineralogickém složení a sledování geochemických procesů, probíhajících při a po spontánním hoření hlušinové haldy uhelného dolu "Kukla" v Oslavanech.
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MSM0021622412, plan (intention)Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)
Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)
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