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GEOREF RECORD

Transformation sequences of copper sulfides at Vielsalm, Stavelot Massif, Belgium

Frederic Hatert
Transformation sequences of copper sulfides at Vielsalm, Stavelot Massif, Belgium
The Canadian Mineralogist (April 2005) 43, Part 2: 623-635

Abstract

Bornite, chalcopyrite, idaite, covellite, yarrowite, spionkopite, anilite, digenite, djurleite and chalcocite have been identified by microprobe in quartz veins in the Viesalm area of the Stavelot Massif in the Belgian Ardennes. This association of primary sulphides indicates that the bornite-bearing quartz veins crystallized above 300-350 degrees C, whereas the chalcocite-bearing quartz veins crystallized below 200 degrees C. Relations among the sulphides indicates the occurrence of two sequences of transformation responsible for the formation of secondary sulphides: chalcocite-H --> chalcocite-M --> djurleite --> low digenite (or anilite + djurleite) --> yarrowite + spionkopite --> covellite + oxidation minerals, and bornite --> anilite + chalcopyrite --> covellite + oxidation minerals. The crystallization of chalcocite-M, djurleite and low digenite (or anilite + djurleite) took place between 103.5 and 72 degrees C. The associations idaite + chalcopyrite, yarrowite + spionkopite and covellite + oxidation minerals were produced under meteoric conditions. The source of Cu and of the other elements in the quartz veins must be sought in the host chloritoid-bearing schists.


ISSN: 0008-4476
EISSN: 1499-1276
Coden: CAMIA6
Serial Title: The Canadian Mineralogist
Serial Volume: 43, Part 2
Title: Transformation sequences of copper sulfides at Vielsalm, Stavelot Massif, Belgium
Author(s): Hatert, Frederic
Affiliation: Universite de Liege, Laboratoire de Mineralogie, Liege, Belgium
Pages: 623-635
Published: 200504
Text Language: English
Publisher: Mineralogical Association of Canada, Ottawa, ON, Canada
References: 48
Accession Number: 2006-027647
Categories: Mineralogy of non-silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 4 tables, sketch map
N50°25'00" - N50°25'00", E05°55'60" - E05°55'60"
Country of Publication: Canada
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
Update Code: 200608
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