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	Instrumental Neutron Activation Analysis	ストロンチウム同位体由来分析
分野	考古学	考古学
系統	Process / pipeline	Process / pipeline
提唱年	1992	1985
提唱者	Michael Glascock	Jonathan Ericson
種類	Trace element sourcing	Isotopic sourcing technique
原典	Glascock, M. D. (1992). Characterization of archaeological ceramics at MURR. Journal of Radioanalytical and Nuclear Chemistry, 168(2), 217-228.	Ericson, J. E. (1985). Strontium isotope characterization in the study of prehistoric migrations. Journal of Human Evolution, 14(5), 503-514.
別名	INAA, neutron activation analysis	Sr isotope provenance, strontium isotope analysis
関連	3	4
概要	Instrumental neutron activation analysis (INAA) measures trace element concentrations in archaeological artifacts by bombarding samples with neutrons and analyzing the resulting gamma-ray emissions. Developed as a systematic archaeological method by Michael Glascock and colleagues, INAA provides chemical fingerprints of ceramics, obsidian, and other materials that reveal sourcing and provenance. The method is non-destructive, highly sensitive, and capable of detecting 30+ elements simultaneously.	Strontium isotope provenance analysis uses the ratios of strontium-87 to strontium-86 in human skeletal remains to determine geographic origin and track human mobility and migration. Developed by Jonathan Ericson in the 1980s, this method exploits the fact that strontium isotope ratios in the environment vary geographically based on underlying geology. When individuals consume food and water from a specific region, they incorporate that region's characteristic strontium isotope signature into their bones and teeth, creating a geochemical fingerprint of their residence.