Retrograde mineral and fluid evolution in high-pressure metapelites (Schistes Lustres unit, Western Alps).

Ph. Agard, B. Goffe, J.L.R. Touret, O. Vidal

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    Fluid inclusions have been analysed in successive generations of syn-metamorphic segregations within low-grade, high-pressure, low-temperature (HP-LT) metapelites from the Western Alps. Fluid composition was then compared to mass transfer deduced from outcrop-scale retrograde mineral reactions. Two types of quartz segregations (veins) occur in the 'Schistes lustres' unit: early blueschist-facies carpholite-bearing veins (BS) and retrograde greenschist-facies chlorite-bearing veins (GS). Fluid inclusions in both types of segregations are aqueous (no trace of dissolved gases such as CO
    Original languageEnglish
    Pages (from-to)296-315
    JournalContributions to Mineralogy and Petrology
    Volume140
    DOIs
    Publication statusPublished - 2000

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