Tephrochronology
Subject: Geography | Topics:

Tephrochronology is usually a geochronological technique of which uses discrete tiers of tephra—volcanic ash at a single eruption—to build a chronological framework through which paleoenvironmental or archaeological records can be placed. The premise with the technique is that every volcanic event produces ash with a unique chemical “fingerprint” that allows the deposit to get identified across areas affected by fallout.

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