Khok Phanom Di,central Thailand: Chemical analysis of pollen core KL 2 and AMS radiocarbon dates from cores KL 2 and BMR 2

Summary pollen diagrams and carbonized particle concentration figures from cores collected very near the central Thai archaeological site of Khok Phanom Di (ca. 2000-1500 B.C.) have recently been published in this journal. This paper reports on the chemical analysis of one of these cores (KL 2), the accelerator mass spectrometry radiocarbon dates from two cores (KL 2 and BMR 2), and reinterprets the pollen record in relation to the 17 dates now available from the archaeological site. the chemical analyses are the first from a lowland Southeast Asian pollen core and reinforce the conclusions of pollen analysis, while the radiocarbon dates indicate that the earlier disruption to the vegetation suggested in the previous paper pre-dates the excavation evidence. There is some evidence that archaeologically older strata than already uncovered occur at Khok Phanon Di.