Magmatic processes in titanite-bearing dacites, central Andes of Chile and Bolivia

@inproceedings{Nlx2007MagmaticPI,
  title={Magmatic processes in titanite-bearing dacites, central Andes of Chile and Bolivia},
  author={Snrsuvl Nlx and ol},
  year={2007}
}
  • Snrsuvl Nlx, ol
  • Published 2007
Dacites in the central Andes contain euhedral phenocrysts of titanite. In the studied dacites, pargasite phenocrysts coexist with hornblende phenocrysts, neither of which show notable compositional zoning, implying mixing of pargasite-bearing mafic magma and hornblende-bearing rhyolitic magma just before eruption. The rhyolitic magma was highly oxidized, cool, and hydrous at shallow levels in the crust and was underlain by the hotter, less-oxidized mafic magma. Titanite crystallized from the… CONTINUE READING