인골 추출 콜라겐의 탄소·질소 안정동위원소 분석을 통해 본 경산 임당 유적 고총군 피장자 집단의 식생활 (Tracing Status-dependent Dietary Differences in the Silla Period through Stable Isotope Palaeodietary Reconstruction from Imdang, Gyeongsan)

서지정보

· 발행기관 : 한국고고학회
· 수록지 정보 : 한국고고학보 / 70호 / 84 ~ 109페이지
· 저자명 : 신지영, 이준정

초록

This study aims to trace status-dependent palaeodietary differences through
the bone chemistry of human remains from the site of Imdang, Gyeongsan (the
Silla Period). The underlying assumption of stable isotope analysis is that the
isotopic composition of bone collagen is expected to be a direct and constant
function of diet, where the stable isotope ratios should not decay or change in
abundance through time. Carbon and nitrogen stable isotope values were
measured from the bone collagen of high status individuals, who are expected
to be the ruling class, and individuals from sacrificial burials. These two groups
present significant differences not only in their grave goods but also in their
dietary components based on stable isotope analysis. High-status individuals
have average values of carbon (δ13C = -18.2 ± 0.0‰, n=2) and nitrogen (δ15N =
13.2 ± 0.1‰, n=2) stable isotopes, except for one individual. On the other
hand, individuals from sacrificial burials have a wider range of stable isotopic
values, and the average values are δ13C = -17.5± 0.7‰ (ranging from -18.7 to
-16.2‰), δ15N = 10.0 ± 0.8‰ (ranging from 8.5 to 11.6‰) (n=15). Carbon stable
isotopic values for both high and low status groups indicate a largely C3 based
diet, where the possible input of C4 consumption cannot be excluded. The
carbon isotope results for the individuals from sacrificial burials present relatively
enriched δ13C values, which may be attributed to C4 input such as millet. The
enriched nitrogen stable isotope values of high status individuals imply the
consumption of significant amounts of terrestrial animal protein and possibly
marine and freshwater fish in comparison with that of low status individuals.

영어초록

This study aims to trace status-dependent palaeodietary differences through
the bone chemistry of human remains from the site of Imdang, Gyeongsan (the
Silla Period). The underlying assumption of stable isotope analysis is that the
isotopic composition of bone collagen is expected to be a direct and constant
function of diet, where the stable isotope ratios should not decay or change in
abundance through time. Carbon and nitrogen stable isotope values were
measured from the bone collagen of high status individuals, who are expected
to be the ruling class, and individuals from sacrificial burials. These two groups
present significant differences not only in their grave goods but also in their
dietary components based on stable isotope analysis. High-status individuals
have average values of carbon (δ13C = -18.2 ± 0.0‰, n=2) and nitrogen (δ15N =
13.2 ± 0.1‰, n=2) stable isotopes, except for one individual. On the other
hand, individuals from sacrificial burials have a wider range of stable isotopic
values, and the average values are δ13C = -17.5± 0.7‰ (ranging from -18.7 to
-16.2‰), δ15N = 10.0 ± 0.8‰ (ranging from 8.5 to 11.6‰) (n=15). Carbon stable
isotopic values for both high and low status groups indicate a largely C3 based
diet, where the possible input of C4 consumption cannot be excluded. The
carbon isotope results for the individuals from sacrificial burials present relatively
enriched δ13C values, which may be attributed to C4 input such as millet. The
enriched nitrogen stable isotope values of high status individuals imply the
consumption of significant amounts of terrestrial animal protein and possibly
marine and freshwater fish in comparison with that of low status individuals.

참고자료

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