Compara mètodes

	Reconstrucció de la dieta per isòtops	Procedència d'estronci
Camp	Arqueologia	Arqueologia
Família	Process / pipeline	Process / pipeline
Any d'origen	1983	1985
Autor original	Margaret Schoeninger	Jonathan Ericson
Tipus	Geochemical diet analysis	Isotopic sourcing technique
Font seminal	Schoeninger, M. J., & DeNiro, M. J. (1983). Nitrogen and carbon isotopic composition of bone collagen from marine and terrestrial animals. Geochimica et Cosmochimica Acta, 47(4), 625-639.	Ericson, J. E. (1985). Strontium isotope characterization in the study of prehistoric migrations. Journal of Human Evolution, 14(5), 503-514.
Àlies	stable isotope analysis, carbon-nitrogen isotope analysis, diet isotope analysis	Sr isotope provenance, strontium isotope analysis
Relacionats	4	4
Resum	Isotope diet reconstruction uses the stable isotope ratios of carbon (C13/C12) and nitrogen (N15/N14) in human bone collagen to infer the composition of past diets. Pioneered by Margaret Schoeninger and Michael DeNiro in the 1980s, this method reveals long-term dietary patterns by analyzing the chemical signature of food absorbed into skeletal tissues. Stable isotopes provide quantitative information about the relative contributions of terrestrial versus marine foods, and between plant and animal sources, making it a powerful tool for understanding past subsistence practices.	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.