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SAMPLE INFO : DSDP_178_28-2_136-137
Sample ID:DSDP_178_28-2_136-137
Station ID:DSDP_178
Sample Type 1:Tephra Fall
Text Description:
Two hundred forty m depth. Bed is five cm thick. 94% light ash (clear, well-sorted, large shards). Refractive index: 1.512.

Volcanic ash from DSDP Site 178, Gulf of Alaska
Satellite measurement of sulfur dioxide from the Redoubt eruptions of December, 1989


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