Gold-silver vein mineralization at Tyndrum, Scotland

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Authors:Pattrick, R. A. D.; Boyce, A.; McIntyre, R. M.
Author Affiliations:Primary:
Univ. Manchester, Dept. Geol., GB-Manchester M13 9PL, United Kingdom
Volume Title:Mineralogy and Petrology
Source:Mineralogy and Petrology, 38(1), p.61-76. Publisher: Springer-Verlag, Vienna, Austria. ISSN: 0930-0708
Publication Date:1988
Note:In English with German summary. 47 refs.; illus. incl. 24 anal., 3 tables, geol. sketch maps
Summary:The vein mineralization at Tyndrum (M.M. 49-671) includes electrum, hessite, petzite and sylvanite, together with two unnamed Ag-Te-S phases (for all of which minerals probe analyses are given) . Fluid-inclusion studies suggest that the mineralizing fluids responsible for the precious-metal mineralization contained approx 7.0 mol.% CO2 and 7 wt.% NaCl. T of homogenization (TH) determinations were in the range 295-325°C, and a depth of vein formation of approx 4 km is indicated. Mineral precipitation was probably caused by cooling and adsorption of Au onto pyrite. The delta 34S values of +1.8mu for galena from the Au + Ag + Te veins suggest a different (perhaps igneous) source of sulphur from that producing the Pb + Zn vein mineralization in the area. It is argued that the Au + Ag mineralization at Tyndrum is due to hydrothermal activity related to Cu + Mo mineralization associated with the late Caledonian granites. [R.A.H.]
Subjects:Economic geology; Gold ores; Hessite; Isotopes; Metal ores; Mineralization; Mineralogy; Minerals; S-34/S-32; Silver ores; Stable isotopes; Sulfur; Sylvanite; Tellurides; Veins; Europe; Grampian Highlands; Great Britain; Scotland; Scottish Highlands; United Kingdom; Western Europe; Petzite; Tyndrum
Abstract Numbers:88M/5581
Record ID:1989024156
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe
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