POLLEN, MACROFLORAL, ORGANIC RESIDUE (FTIR), AND AMS RADIOCARBON ANALYSIS OF SAMPLES FROM SLAB-LINED THERMAL FEATURES AT SITE 42WS4832, UTAH

Site 42Ws4832, located in Washington County, southwest Utah, contains thermal
features, a surface rock cairn, rock scatters, lithic flakes, and ceramic sherds. Samples from
the fill of four slab-lined thermal features were examined for pollen, macrofloral remains, and/or
for organic residues using Fourier Transform Infrared Spectroscopy (FTIR). Charcoal
fragments from three of the features also were AMS radiocarbon dated. Pollen and macrofloral
analyses will be used to provide subsistence information concerning plant resources utilized by
the site occupants, specifically if cactus was processed at the site. FTIR analysis will be used
to address use of both plants and animals. AMS radiocarbon dates will provide temporal
information about site occupation.

位于犹他州西南部华盛顿县的42Ws4832号遗址，涵盖热遗迹、地表石堆、岩石散布区、石制品石片与陶片。研究人员对4座板衬热遗迹的充填物样本开展了孢粉、大植物遗存检测，以及通过傅里叶变换红外光谱（Fourier Transform Infrared Spectroscopy, FTIR）分析有机残留物。其中3座遗迹出土的木炭碎片，还采用加速器质谱（Accelerator Mass Spectrometry, AMS）放射性碳测年法进行了年代测定。孢粉与大植物遗存分析将用于揭示遗址居民所利用的植物资源相关生计信息，重点验证该遗址是否存在仙人掌加工活动。傅里叶变换红外光谱分析将用于探究遗址对动植物的利用情况。AMS放射性碳测年结果将为遗址的居留活动提供时序依据。