Dr.
Richard E. Hughes
laboratory director
Geochemical
Research Laboratory (GRL), founded by Dr. Richard Hughes in 1986, specializes
in archaeological geochemistry (obsidian
sourcing); specifically, the use of energy dispersive x-ray fluorescence
(edxrf) spectrometry to determine the selected major, minor, trace,
and rare earth element composition of volcanic rocks (predominantly
obsidian, dacite, andesite, and basalt), and the use of distinctive combinations
of various chemical elements to determine the likely geologic source
of origin for archaeological artifacts. |
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