STRATIGRAPHIC POLLEN ANALYSIS AT SITE 48TE414, GRAND TETON NATIONAL PARK, WYOMING

Four pollen sanples were examined from Test Unit 6 at 48TE414. Diagnostic
projectile points recovered at this site range in age from middle Archaic through
late Prehistoric. Test Unit 6 was the deepest unit at this site and a Pelican
Lake (late Archaic) projectile point was recovered from the bottom of this unit,
providing a maximum date of approximately 3000 BP. Pollen analysis was
undertaken to examine the stability of the environment represented by the
depositional sequence in Test Unit 6.

本次对48TE414遗址6号探方的4份花粉样品进行了检测分析。该遗址出土的具有断代指示意义的投射尖状器，其年代跨度覆盖古风期中期至史前晚期。6号探方为该遗址最深探方，其底部出土一件鹈鹕湖期（古风期晚期）的投射尖状器，据此可确定该探方沉积序列的年代上限约为距今3000年。本次花粉分析旨在探究6号探方沉积序列所反映的古环境稳定性。