Continuing isotopic investigation of the sacrificial burials and trophies beneath the Feathered Serpent Pyramid (Temple of Quetzalcoatl) in ancient Teotihuacan, Mexico, has produced new results. Isotopic proveniencing using bioapatite strontium and structural carbonate oxygen isotopes in tooth enamel was applied to 39 samples, 24 from the sacrificial victims and 15 from the trophy jaws. Both the strontium and oxygen isotope ratios suggest that most or all of the sacrificial victims came from the central highlands of Mexico, which includes the area of Teotihuacan. In this sense, we find somewhat less multiethnicity represented among the military at Teotihuacan than previously thought. Analysis of carbon isotope ratios in enamel structural carbonate indicated a childhood diet dominated by maize, relatively homogeneous among the victims at the pyramid, and typical for much of pre-Hispanic Mesoamerica.

中文翻译：

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格查尔科阿特尔神庙，特奥蒂瓦坎：祭祀受害者起源的新数据

继续对墨西哥古代特奥蒂瓦坎的羽蛇金字塔（羽蛇神庙）下的祭祀墓葬和战利品进行同位素调查，取得了新的成果。使用牙釉质中的生物磷灰石锶和结构碳酸盐氧同位素的同位素来源应用于 39 个样品，其中 24 个来自牺牲品，15 个来自奖杯颌骨。锶和氧同位素比率都表明，大多数或所有牺牲的受害者来自墨西哥中部高地，其中包括特奥蒂瓦坎地区。从这个意义上说，我们发现特奥蒂瓦坎军队中的多民族性比以前想象的要少。对釉质结构碳酸盐中碳同位素比率的分析表明，儿童饮食以玉米为主，