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Ancient Skeletons In Situ: Evaluating Bone Diagenesis at an Open-Air Archaeological Site and Community Museum in Central Thailand
Journal of Archaeological Method and Theory ( IF 3.2 ) Pub Date : 2024-12-20 , DOI: 10.1007/s10816-024-09684-3
Gina Palefsky, Thanik Lertcharnrit, Robin B. Trayler, Lauren E. Lopes, Sora L. Kim

Archaeological human skeletal remains are displayed in many museums across Thailand, under glass in exhibit halls, and as part of open-air displays where skeletons are partially excavated but remain in situ. This form of outdoor exhibit is a notable component of public archaeology initiatives and local educational outreach, but the potential long-term implications for bone preservation have raised concerns. This study investigated patterns of diagenesis at the Ban Pong Manao Archaeological Site and Community Museum in Lopburi Province, central Thailand, where some ancient skeletons are curated indoors in the on-site antiquities archive, and others are displayed outdoors in covered open-air excavation units. We applied a biogeochemical approach to investigate diagenesis, using methods from stable isotope analysis and Fourier-transformed infrared spectroscopy to assess post-excavation taphonomic processes. Results from this study revealed no statistically significant differences in values for bone collagen or bioapatite preservation indices between in situ and curated skeletons. However, we observed lower collagen yields and higher bioapatite carbonate yields among in situ skeletons that suggested processes of diagenesis may be accelerated by partial exposure in open-air display contexts. After roughly 20 years, differences between post-excavation contexts are not yet substantial but over time may increase if current taphonomic trajectories are maintained. We consider the implications and limitations of these results and examine partial excavation and exposure as simultaneously deleterious and additive in the context of cultural heritage management in Thailand.



中文翻译:


原位古代骨骼:在泰国中部的露天考古遗址和社区博物馆评估骨成岩作用



考古人类骨骼遗骸在泰国各地的许多博物馆中展出,在展厅的玻璃下展出,并作为露天展览的一部分,骨骼被部分挖掘但保留在原地。这种形式的户外展览是公共考古计划和当地教育推广的一个重要组成部分,但对骨骼保存的潜在长期影响引起了人们的担忧。本研究调查了泰国中部华富里府 Ban Pong Manao 考古遗址和社区博物馆的成岩作用模式,其中一些古代骨骼在室内的现场文物档案中展出,而其他骨骼则在室外有盖的露天挖掘单元中展出。我们应用生物地球化学方法来研究成岩作用,使用稳定同位素分析和傅里叶变换红外光谱法来评估挖掘后的成岩过程。这项研究的结果显示,原位骨骼和精选骨骼之间的骨胶原或生物磷灰石保存指数值没有统计学上的显着差异。然而,我们在原位骨骼中观察到较低的胶原蛋白产量和较高的生物磷灰石碳酸酯产量,这表明在露天展示环境中部分暴露可能会加速成岩作用过程。大约 20 年后,发掘后环境之间的差异还不大,但如果保持当前的 taphonomic 轨迹,随着时间的推移可能会增加。我们考虑了这些结果的含义和局限性,并研究了部分挖掘和暴露在泰国文化遗产管理背景下同时是有害和附加的。

更新日期:2024-12-20
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