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Petrology of the Bend pumice and Tumalo tuff, a Pleistocene Cascade eruption involving magma mixing

Creator:

Hill, Brittain Eames

Abstract:

The Bend pumice and Tumalo tuff are products of a plinian eruption which occurred sometime between 0.89 and 2.6 m.y. The Bend pumice is a poorly consolidated, air-fall vitric lapilli tuff, which overlies a zone of reworked tephra. Perlitic obsidian in the reworked zone probably represents the remains of a...

Resource Type:

Masters Thesis