AMS 14C dating of the hominin archaeological site Chuandong Cave in Guizhou Province, southwestern China

摘要: Abstract This study presents detailed AMS 14C dating of charcoals, burned and unburned bones, teeth from the hominin archaeological site Chuandong Cave, located in Puding County, Guizhou Province, southwestern China. The charcoal samples were pretreated with either acid−base−acid (ABA) or ORAU−XR method, bone ABA-collagen pretreatment, ORAU−CB method. ages provide most reliable results this study. dates are generally younger, possibly due to posterior amino acid contamination. Based on ages, we propose following chronology for site: Layers 3 5 formed between 11.5–12.5 ka BP (all reported calibrated unless stated otherwise. A BP = years before 1950 CE), a period corresponding Younger Dryas; 6 7 14–24 BP, including Last Glacial Maximum (LGM); 8–9 likely 34 late Pleistocene. According above chronology, humans (modern Homo sapiens) present at 12 i.e., conclusion differs previous estimate ∼9 early Holocene. Furthermore, Culture began as survived region throughout cold dry LGM. Detailed studies sites Guizhou, Cave Maomaodong warranted better understand evolution Asia.