A geochemical evaluation of cryptotephra from Montserrat, Lesser Antilles Arc.Barickman, Mattison H.
In volcanic eruptions, magmatic or phreatomagmatic fragmentation transforms the erupting magma into a gas-particle/droplet mixture that is then injected into the atmosphere as an ash plume. The material from this ash plume is then deposited on land or in the ocean as a tephra layer, an unconsolidated, fragmented material, or cryptotephra, which is a tephra layer that is invisible to the naked eye.... read more
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