Bayesian Refinement of a Stratified Sequence of Radiometric Dates from Punta de Chimino, Guatemala
CitationBachand, B. R. (2008). Bayesian refinement of a stratified sequence of radiometric dates from Punta de Chimino, Guatemala. Radiocarbon, 50(1), 19-51.
AbstractBayesian analysis of 6 radiocarbon and 2 luminescence determinations from Punta de Chiminos acropolis provides subcentury chronometric accuracy for a Protoclassic hiatus and a more decisive, incipient Early Classic abandonment. For the latter event, sensitivity tests and a redundant modal value pattern reduce the period of historical interest from a few centuries to several decades. The findings aid in selecting between 2 historical scenarios and demonstrate that improved chronological accuracy is attainable for sites and contexts lacking calendrical dates.