Tephra - PowerPoint PPT Presentation

Volcanoes

Volcanoes. Tephra. Tephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size or emplacement mechanism. Tephra fragments are classified by size: Ash – particles smaller than 2 mm (0.08 inches) in diameter,

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Geologic and Anthropologic Histories of the Kuril Islands, Russia

Geologic and Anthropologic Histories of the Kuril Islands, Russia Amy Tice, Senior, Earth and Space Sciences, Anthropology Mentor : Joanne Bourgeois, Earth and Space Sciences. Research Goal: To use tephra to tell time in archaeological and geologic excavations. Osma Profile

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110 views • 1 slides

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