New Perspectives on Migration into the Tlajinga District of Teotihuacan: A Dual-Isotope Approach
New Perspectives on Migration into the Tlajinga District of Teotihuacan: A Dual-Isotope Approach
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DOI：
10.1017/laq.2021.20
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发表时间：
2021-09-01
影响因子：
0.9
通讯作者：
Renson, Virginie
中科院分区：
文献类型：
--
作者：
Buckley, Gina M.;Storey, Rebecca;Renson, Virginie
特奥蒂瓦坎市（公元1-550年）是一个主要的多民族城市中心，吸引了远至西墨西哥和玛雅地区的移民。过去在特奥蒂瓦坎的特拉金加地区使用人类遗骸中的氧同位素进行的研究估计，特拉金加33号公寓楼近30%的人口是移民。本研究采用双同位素方法（Sr-87/Sr-96和δ O-18（p））重新评估Tlajinga的内迁移比例，并包括来自另外两个公寓化合物Tlajinga 17和18（n = 23）的数据。新的结果表明，移民占特拉津加人口的45%。以前获得的放射性碳年代测定结合太平间和同位素数据表明，在第一个世纪的复合占领期间，向特拉津加的移民最多。然而，移徙在其整个历史上是一个持续的过程。此外，一项新的发现表明，Tlajinga 33的居民摄入的食物中Sr-87/Sr-86的比例高于Tlajinga 17和18。我们假设，进口石灰的nixtamalization过程中加入倾斜的Sr-87/Sr-86的比例的人类遗骸，一个潜在的重要发现forfidure研究在特奥蒂瓦坎。
The city of Teotihuacan (AD 1-550) was a major multiethnic urban center that attracted migrants from as far away as west Mexico and the Maya region. Past research in the Tlajinga district at Teotihuacan using oxygen isotopes from human remains estimated that nearly 30% of the population of Tlajinga 33, a single apartment compound, were migrants. This study takes a dual-isotope approach (Sr-87/Sr-96 and delta O-18(p)) to reevaluate the proportion of in-migration at Tlajinga and includes data from two additional apartment compounds, Tlajinga 17 and 18 (n = 23). New results indicate that migrants comprised similar to 45% of the Tlajinga population. Previously acquired radiocarbon dates combined with mortuary and isotope data suggest that immigration to Tlajinga was highest during the first centuries of compound occupation. Nevertheless, migration was a continual process throughout its history. Additionally, a new finding suggests that residents of Tlajinga 33 ingested foods with higher Sr-87/Sr-86 ratios than did those of Tlajinga 17 and 18. We hypothesize that the incorporation of imported lime for the nixtamalization process skewed the Sr-87/Sr-86 ratios of human remains, a potentially important finding forfidure studies at Teotihuacan.