P ie r r e a s e c o n d f lo w s u r g e o n m a y 2

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Unformatted text preview: Eruption Stratigraphic Column of May 8 Deposits 16 Model of Fisher et al., 1980 Conclusion: St. Pierre destroyed by ash-cloud surge associated with block and ash flow down the Riviere Blanche Valley Lateral Blasts L a te r a l b la s ts o c c u r w h e n d e c o m p r e s s in g m a g m a is d ir e c te d la te r a lly r a th e r th a n v e r tic a lly . 17 18...
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