Cosmogenic nuclide burial dating of Liuwan Paleolithic site in the Luonan Basin, Central China

The Luonan Basin is a key region of early human settlement in Central China with more than 300 discovered Paleolithic sites. Artifact layer 1 of the Liuwan site was dated to approximately 0.6 million years (Ma) based on correlation with the well-dated loess-paleosol sequence of the central Chinese Loess Plateau. This study reassessed the age of the Liuwan artifact layer via an absolute dating method, namely, Al-26/Be-10 burial dating. We determined the burial age of artifact layer 1, which was most likely at least 0.60 +/- 0.12 Ma (1o), using three simple burial ages. The new burial age confirmed the previous estimated age and provided a considerably accurate age range. Therefore, we suggest the use of the Al-26/Be-10 burial dating method in thin loess-covered Paleolithic sites around the Qinling Mountain Range is helpful to understand the early human behavior.