University of South Florida, Department of Anthropology, 4202 E. Fowler Ave, SOC 107, Tampa, FL 33620, United States.
Binghamton University, Department of Anthropology, P.O. Box 6000, Binghamton, NY 13902, United States.
Forensic Sci Int. 2019 Sep;302:109919. doi: 10.1016/j.forsciint.2019.109919. Epub 2019 Aug 8.
We report isotopic ratios for δO and Sr/Sr from 71 individual human permanent teeth, obtained from 61 individuals with known regions of origins from eight of the 32 departments in Colombia. This survey of the applicability of isotopic provenancing is a vital addition to the ongoing identification efforts within Colombia concerning unidentified decedents recovered from clandestine and cemetery burials. At this time, only median isotopic values are reported due to heterogeneity of inter- and intra-departmental variance among the obtained isotopic values. The use of department of origin as a regional assignment schema is inadequate to effectively georeference unidentified human remains, given the wide-ranging topography and climatic diversity within Colombia. Therefore, a critical need for additional isotopic sampling of individual reference material exists, in order to improve the accuracy of potential region of origin estimates of unknown decedents originating from forensic contexts within Colombia.
我们报告了来自哥伦比亚 8 个省份 32 个省份中的 61 名已知原籍地区个体的 71 颗人类恒牙的 δO 和 Sr/Sr 同位素比值。这项关于同位素溯源适用性的调查是对哥伦比亚境内从秘密和公墓埋葬中发现的身份不明死者进行持续识别工作的重要补充。由于获得的同位素值存在部门内和部门间的差异，因此目前仅报告中位数同位素值。由于哥伦比亚内部的地形和气候多样性，仅使用原籍地作为区域分配方案不足以有效地对身份不明的人类遗骸进行地理参考。因此，迫切需要对个体参考物质进行额外的同位素采样，以提高对来自哥伦比亚法医学背景下的未知死者的潜在原籍地估计的准确性。
