POLLEN AND MACROFLORAL ANALYSIS AT 5BL4838, THE BUTTON ROCK SITE, COLORADO

Seven pollen and two macrofloral samples were analyzed from the Button Rock Site (5BL4838) near Lyons, Colorado. Five of the pollen samples represent a stratigraphic column examined to provide evidence for vegetation during the time period represented. The fill from two hearth features was examined for pollen and charred macrofloral remains for evidence of food processing activities. Radiocarbon dates indicate that these hearths were utilized during the Late Archaic period.本研究对美国科罗拉多州莱昂斯附近的巴顿岩遗址（Button Rock Site，编号5BL4838）的7份花粉样品与2份大植物遗存样品开展了分析。其中5份花粉样品取自一处地层剖面，旨在为该遗址对应时期的植被状况提供考古学证据。研究同时对两处火塘遗迹的填充堆积进行了花粉与炭化大植物遗存分析，以获取当时食物加工活动的相关考古证据。放射性碳定年结果表明，这些火塘的使用年代处于晚古风时期（Late Archaic period）。