Compounds with mixed and intermediate sulfur valences as precursors of banded sulfides in carbonate-hosted Zn-Pb deposits in Belgium and Poland

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Authors:Kucha, H.; Viaene, W.
Author Affiliations:Primary:
Mining University, Institute of Mineralogy and Petrology, Leoben, Austria
Afdeling Fysico-chemische Geologie, Belgium
Volume Title:Mineralium Deposita
Source:Mineralium Deposita, 28(1), p.13-21. Publisher: Springer-Verlag, Berlin, Federal Republic of Germany. ISSN: 0026-4598
Publication Date:1993
Note:In English. 25 refs.; illus. incl. 5 tables
Summary:Compounds of Fe, Pb and Zn with mixed and intermediate S valencies form ubiquitous inclusions and relics in banded sphalerite, pyrite- melnikovite and galena. Banded sulphides continuously grade into banded compounds with mixed and intermediate S valencies, the latter with a fibrous microtexture. A fibrous microtexture is also shown by banded sphalerite and pyrite from Zn-Pb deposits in Belgium and Poland. It is therefore suggested that the fibrous sphalerite inherited such a microtexture, unusual for cubic ZnS, by direct replacement of a fibrous precursor with mixed and/or intermediate S valencies. The last band of banded sphalerite is often overgrown by idiomorphic, isometric sphalerite precipitated directly from the solution as ZnS. The following Fe, Pb and Zn compounds with mixed and intermediate S valencies were found in carbonate-hosted Zn-Pb deposits in Belgium and Poland: sulphoxylanes (M2+SO2; S2+), subsulphites (M2+S2O4; S3+), sulphites (M2+SO3; S4+), pyrosulphites (M2+S2O5; S4+) and thiosulphates M2+S2O3; S2- and S6+. [R.E.S.]
Subjects:Banded materials; Carbonates; Chemical composition; Host rocks; Lead-zinc deposits; Metal ores; Pyrite; Sphalerite; Sulfides; Sulfur; Belgium; Central Europe; Europe; Poland; Western Europe
Abstract Numbers:93M/4351
Record ID:1993012953
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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