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GEOREF RECORD

Conditions of formation of polymetallic mineralization in the eastern envelope of the Karkonosze Granite; the case of Redziny, southwestern Poland

Adam Pieczka, Bozena Golebiowska and Jan Parafiniuk
Conditions of formation of polymetallic mineralization in the eastern envelope of the Karkonosze Granite; the case of Redziny, southwestern Poland
The Canadian Mineralogist (August 2009) 47 (4): 765-786

Abstract

Newly discovered assemblages of numerous ore minerals disseminated in schists, amphibolites and mylonites at their contacts with a dolomite lens exploited at Redziny, in the northeastern Bohemian Massif, Western Sudetes, Poland, was used in an evaluation of the thermochemical conditions under which specific, and in some cases rare, phases formed. Arsenopyrite, cassiterite and associated base-metal sulfides crystallized at temperatures lower than 550 degrees C. The Ag-bearing sulfosalts pavonite, benjaminite, makovickyite, gustavite, berryite, matildite, giessenite, izoklakeite, cosalite, freibergite and tetrahedrite crystallized along with Ag-bearing galena in the temperature range ca. 350-280 degrees C. They preceded the Cu-Pb-Bi(Sb) sulfosalts wittichenite, bournonite, aikinite-group minerals, emplectite and Ag-poor tennantite, which crystallized from about 300 degrees C to even below 200 degrees C. Kesterite and cernite crystallized at temperatures about 350 degrees C, cernite occurring only in Zn-depleted environments. Ferrokesterite and petrukite, occurring with Zn-enriched chalcopyrite as inclusions within (Fe,Cd,Cu,Sn)-enriched sphalerite, are products of decomposition at 340-270 degrees C of a higher-temperature (Zn,Cd,Cu,Fe,Sn) sulfide. Chatkalite formed as a metastable phase at the SnO (sub 2) -SnS equilibrium at temperatures of about 270-260 degrees C; stannoidite crystallized from 270 degrees C to 250-240 degrees C, at which point mawsonite began to crystallize. Unknown Sn-bearing sulfides, with compositions varying between Cu (sub 4) Fe (sub 3) SnS (sub 8) and Cu (sub 10) SnS (sub 8) , crystallized at probably still lower temperatures. Bismuth sulfides (bismuthinite and an unknown Pb-Bi-S phase), sulfoselenides (ikunolite) and sulfotellurides (tetradymite, joseite-A, joseite-B and an unknown Bi-Te-S phase) crystallized under varying conditions: tetradymite at about 300 degrees C, ikunolite at 270-240 degrees C, bismuthinite from about 300 to 220 degrees C, and joseite-A and joseite-B clearly below 240 degrees C.


ISSN: 0008-4476
EISSN: 1499-1276
Coden: CAMIA6
Serial Title: The Canadian Mineralogist
Serial Volume: 47
Serial Issue: 4
Title: Conditions of formation of polymetallic mineralization in the eastern envelope of the Karkonosze Granite; the case of Redziny, southwestern Poland
Affiliation: AGH-University of Science and Technology, Department of Mineralogy, Petrography and Geochemistry, Cracow, Poland
Pages: 765-786
Published: 200908
Text Language: English
Publisher: Mineralogical Association of Canada, Ottawa, ON, Canada
References: 69
Accession Number: 2009-089828
Categories: General mineralogyEconomic geology, geology of ore deposits
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 7 tables, sketch map
N50°30'00" - N50°49'60", E15°24'00" - E16°00'00"
Secondary Affiliation: University of Warsaw, POL, Poland
Country of Publication: Canada
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Mineralogical Association of Canada. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200949
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