Exploring the use of a low temperature preheat in IRSL dating of feldspar in Beringian archaeological contexts

摘要

A new luminescence dating protocol was developed to circumvent the problem of thermal transfer and poor thermal stability of Infrared Stimulated Luminescence (IRSL) of samples from late glacial loess sediments in Central Alaska, USA. This new protocol is proposed as an alternative to routine procedures for which scattered and erratic results were obtained using standard IRSL and post-IR IRSL protocols on loess samples from the McDonald Creek archaeological site.