Coesite and pure pyrope in high-grade blueschists of the Western Alps: a first record and some consequences

@article{Chopin1984CoesiteAP,
  title={Coesite and pure pyrope in high-grade blueschists of the Western Alps: a first record and some consequences},
  author={C. Chopin},
  journal={Contributions to Mineralogy and Petrology},
  year={1984},
  volume={86},
  pages={107-118}
}
  • C. Chopin
  • Published 1984
  • Geology
  • Contributions to Mineralogy and Petrology
  • A pyrope-quartzite originally described by Vialon (1966) from the Dora Maira massif was resampled and reinvestigated. Garnet (up to 25 cm in size), phengite, kyanite, talc and rutile are in textural equilibrium in an undeformed matrix of polygonal quartz. The garnet is a pyrope-almandine solid solution with 90 to 98 mol % Mg end-member. It contains inclusions of coesite which has partially inverted to quartz, resulting in a typical radial cracking of the host garnet around the inclusions… CONTINUE READING
    1,072 Citations
    Pohorje eclogites revisited: Evidence for ultrahigh-pressure metamorphic conditions
    • 2
    • Highly Influenced
    Phengite geobarometry based on the limiting assemblage with K-feldspar, phlogopite, and quartz
    • 835
    • Highly Influenced

    References

    SHOWING 1-10 OF 39 REFERENCES
    The quartz‐coesite transition
    • 147