Phase Equilibria of Amphibolites from the Post Pond Volcanics, Mt. Cube Quadrangle, Vermont
- 1 August 1982
- journal article
- Published by Oxford University Press (OUP) in Journal of Petrology
- Vol. 23 (3) , 383-426
- https://doi.org/10.1093/petrology/23.3.383
Abstract
Amphibolites of the Post Pond Volcanics, south-west corner of the Mt. Cube Quadrangle, Vermont, are characterized by a great diversity of bulk rock types that give rise to a wide variety of low-variance mineral assemblges. Original rock types are believed to have been intrusive and extrusive volcanics, hydrothermally altered volcanics and volcanogenic sediments with or without admixtures of sedimentary detritus. Metamorphism was of staurolite-kyanite grade. Geothermometry yields a temperature of 535 ± 20 °C at pressures of 5–6 kb.Keywords
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