Fluid inclusion studies of gold-bearing quartz veins from the Yrisen deposit, Sula Mountains greenstone belt, Masumbiri, Sierra Leone.

I.J. Barrie, J.L.R. Touret

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    The auriferous veins at Yirisen, Masumbiri, Sierra Leone, occurring mainly in the form of sericitic quartz-sulphide lodes and stringers, are hosted in metamorphosed volcano-sedimentary assemblages invaded by at least two generations of granitic intrusions. Detailed microthermometric studies of fluid inclusions from the veins coupled with laser Raman spectroscopic analysis show that the inclusions contain aqueous fluids of variable salinity (5 to 60 wt.% NaCl equivalent) and dense carbonic fluids (pure CO
    Original languageEnglish
    Pages (from-to)203-225
    JournalOre geology Reviews
    Volume14
    DOIs
    Publication statusPublished - 1999

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