Methods of dating glass beads from protohistoric sites in the South Platte River Basin, Colorado
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Morphological characteristics and chemical trace elements counts acquired using Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry analyses were documented for glass trade beads from 24 protohistoric archaeological assemblages in the South Platte River Basin. The resulting database was used to provide quantitative descriptions of each recorded assemblage and to characterize the types of glass beads currently reported in the region. Statistical analyses were then conducted to determine if and to what extent morphological and chemical traits change through time. Characteristics of beads ...