Petrography and geochemistry of hydrothermally altered volcanic rocks metamorphosed at granulite-facies conditions: an example from the central Grenville province

@inproceedings{Hindemith2014PetrographyAG,
  title={Petrography and geochemistry of hydrothermally altered volcanic rocks metamorphosed at granulite-facies conditions: an example from the central Grenville province},
  author={Marisa Ann Hindemith},
  year={2014}
}
A layered bimodal sequence (LBS) was recently recognized in the Canyon domain in the central Grenville Province, and inferred to be the extrusive products of riftrelated magmatism at ~1.25 Ga. The LBS consists of alternating felsic and mafic rocks with, locally, pre-metamorphic hydrothermally altered zones (HAZ), and were metamorphosed to mid-P granulite-facies conditions during the Grenvillian orogeny (~1 Ga). In the HAZ, characteristic felsic rocks are pink and white gneisses, grading… CONTINUE READING