Geochemical Discrimination of Five Pleistocene Lava-Dam Outburst-Flood Deposits , Western Grand Canyon , Arizona

@inproceedings{Fenton2003GeochemicalDO,
  title={Geochemical Discrimination of Five Pleistocene Lava-Dam Outburst-Flood Deposits , Western Grand Canyon , Arizona},
  author={Cassandra R. Fenton and Robert J. Poreda and Barbara P. Nash and Robert H. Webb and Thure E Cerling},
  year={2003}
}
Pleistocene basaltic lava dams and outburst-flood deposits in the western Grand Canyon, Arizona, have been correlated by means of cosmogenic He (Hec) ages and concentrations of SiO2, Na2O, K2O, and rare earth elements. These data indicate that basalt clasts and vitroclasts in a given outburst-flood deposit came from a common source, a lava dam. With these data, it is possible to distinguish individual dam-flood events and improve our understanding of the interrelations of volcanism and river… CONTINUE READING

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