Magmatic origin of low-T mafic blueschist and greenstone blocks from the Franciscan mélange, San Simeon, California

@inproceedings{Ukar2015MagmaticOO,
  title={Magmatic origin of low-T mafic blueschist and greenstone blocks from the Franciscan m{\'e}lange, San Simeon, California},
  author={Estibalitz Ukar and Mark Cloos},
  year={2015}
}
Abstract The Franciscan melange exposure near San Simeon contains abundant greenstone and minor blueschist blocks that were tectonically boudinaged while encased in the shale-matrix. Tectonic deformation of the blueschists is evident from variable amounts of cataclastic flow along their margins and in pinched tails. Major, trace, and rare earth elemental analyses indicate that blueschist and greenstone blocks in this area of the melange were derived from sources with MORB-like composition along… CONTINUE READING