BONE COLLAGEN EXTRACTION AND AMS RADIOCARBON AGE DETERMINATION OF A BISON BONE FRAGMENT FROM THE CASPER SITE, TEXAS

A bison bone fragment recovered from an alluvial terrace at the Casper Site (WT-1) in San Antonio, Texas was submitted for AMS radiocarbon analysis. The bone is expected to date in the latter part of the Little Ice Age. In addition to radiometric dating, the bone was examined for its δ13C and δ15N ratios.从美国德克萨斯州圣安东尼奥的卡斯珀遗址（WT-1）冲积阶地中采集的野牛骨碎片，被送检以开展加速器质谱（AMS, Accelerator Mass Spectrometry）放射性碳测年分析。该骨片的年代预计属于小冰期晚期。除放射性同位素测年外，研究人员还对该骨片的碳同位素比值（δ¹³C）与氮同位素比值（δ¹⁵N）进行了检测分析。