Geochemistry of a silicified, felsic volcaniclastic suite from the early Archaean Panorama Formation, Pilbara Block, Western Australia: an evaluation of depositional and post-depositional processes with special emphasis on the rare-earth elements

@inproceedings{Cullers1993GeochemistryOA,
  title={Geochemistry of a silicified, felsic volcaniclastic suite from the early Archaean Panorama Formation, Pilbara Block, Western Australia: an evaluation of depositional and post-depositional processes with special emphasis on the rare-earth elements},
  author={Robert L. Cullers and M. J. Dimarco and Donald R. Lowe and Jim Stone},
  year={1993}
}
Abstract Many elements in a suite of pervasively silicified, dacitic volcaniclastic and volcanic rocks from the early Archaean Panorama Formation, Warrawoona Group, Western Australia, were strongly depleted or enriched relative to those in equivalent unaltered units during widespread, post-depositional metasomatism. The present compositions of the altered rocks are dominated by Al 2 O 3 , K 2 O, and SiO 2 and lie on or close to a quartz-sericite mixing line. The Al contents were probably… CONTINUE READING

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