Question

_____________ is a method that measures a thin layer that accumulates due to absorption of water on the surface of obsidian when it is first exposed to air. By comparing the thickness of this layer to a graph that predicts how long it takes for water to accumulate on such material a chronometric date can be calculated
a) Radiocarbon
b) Amino acid racemization
c) Obsidian hydration
d) Obsidian oxidation
e) Hydrospheric lamination

Answer

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