Plinian and co-ignimbrite tephra fall from the

  title={Plinian and co-ignimbrite tephra fall from the},
  author={Haraldur Sigurdsson and Sn Carey},
  journal={Bulletin of Volcanology},
A study of pyroclastic deposits from the 1815 Tambora eruption reveals two distinct phases of activity, i.e., four initial tephra falls followed by generation of pyroclastic flows and the production of major co-ignimbrite ash fall. The first explosive event produced minor ash fall from phreatomagmatic explosions (F-1 layer). The second event was a Plinian eruption (F-2) correlated to the large explosion of 5 April 1815, which produced a column height of 33 km with an eruption rate of 1.1 × 108… Expand
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