How does metamorphic fluid get into rocks?

The aim of this group of ongoing projects is to further our understanding of the mechanisms whereby fluid enters rocks during retrograde greenschist facies metamorphism and prograde blueschist facies metamorphism. Our research is conducted in the SW Scottish Highlands (greenschist facies) and southern Greece (blueschist facies). We are particularly interested in learning how constant volume replacement occurs during fluid-rock interaction. In the greenschist facies, we are studying constant volume replacements of amphiboles by calcite during carbonation and constant volume replacements of garnet by chlorite during hydration. In the blueschist facies, we are studying constant volume replacements of lawsonite. We envisage that our results will provide clues that help us distinguish between fluid access along crystal boundaries and fluid access through crystals.

Contact information
PIs

Alasdair Skelton
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Barbara Kleine
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Fredrik Arghe
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Iain Pitcairn
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Benjamin Huet

Department of Geological Sciences
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