MACROFLORAL ANALYSIS, CHARCOAL IDENTIFICATION, AND AMS RADIOCARBON DATING OF HEARTH FILL SAMPLES, AND ORGANIC RESIDUE (FTIR) ANALYSIS OF FIRE-CRACKED ROCK FROM SITE LA 126486, NEW MEXICO

Fill from two hearths at site LA 126486 near Deming, New Mexico were examined for macrofloral remains. Charcoal recovered from the fill of both features was submitted for AMS radiocarbon dating, and a fire-cracked rock from one of the hearths was analyzed for organic residue using Fourier Transform Infrared Spectroscopy (FTIR). Macrofloral and FTIR analysis will be used to provide subsistence information concerning plant and animal resources utilized at this site.对美国新墨西哥州德明附近LA 126486遗址的两处火塘遗迹的堆积填充层开展大植物遗存（macrofloral remains）鉴定分析。从两处遗迹的堆积物中提取的炭质标本已提交加速器质谱（AMS, Accelerator Mass Spectrometry）进行放射性碳定年检测；同时针对其中一处火塘内的火烧破裂岩，采用傅里叶变换红外光谱（FTIR, Fourier Transform Infrared Spectroscopy）开展有机残留物分析。上述大植物遗存分析与FTIR光谱分析结果，将为揭示该遗址先民所利用的动植物资源提供生业模式相关研究依据。