秦岭汉江流域新发现旧石器遗址的地层与释光年代

汉江流域旧石器时代文化遗存丰富,南方砾石石器工业和北方小石片石器工业类型的遗存并存,对研究中国南北旧石器文化交流和发展演化具有重要的意义。2016-2018年夏天,我们在汉江流域进行野外调查,新发现十个含更新世晚期旧石器遗存的地点,利用热转移光释光（TT-OSL）方法对各遗址的地层进行了测年。测年结果表明,这几处旧石器地点的古人类活动主要发生在距今20-5万年之间,涵盖了L₂、S₁和L₁三个阶段,与之前汉江流域第二级阶地发现的旧石器遗址年代基本一致。新发现的十个旧石器地点丰富了汉水流域旧石器遗存,为进一步研究该区域古人类旧石器遗址年代学和石器技术提供了新的材料。

Pedostratigraphy and luminescence dating of the newly discovered Paleolithic sites along the Hanjiang River Valley,Central China

The Hanjiang River Valley have abundant Paleolithic sites. The coexistence of the cobble-tool and the small flake-tool industriesis of considerable significance for the study of the exchange and integration of the Paleolithic industry between North and South China. Field surveys carried out along the Hanjiang River Valley in the summers of 2016-2018 and revealed 10 Paleolithic sites in the late Pleistocene. Thermally transferred optically stimulated luminescence (TT-OSL) is used to date samples from each site. According to the dating results, the hominin activities in these sites mainly occurred between 200-50 kaBP, covering three stages of L₂, S₁, and L₁. Findings are basically consistent with the previous Paleolithic assemblages found in the second terrace of the Hanjiang River Valley. The study of these 10 Paleolithic sites enriches data of Paleolithic chronology, technology, and human activities in the southern Qinling Mountains, Central China.