陕西蓝田地区新发现黄土地层中的旧石器及其年代

发布时间：2018-05-16 14:54

本文选题：蓝田旧石器地点黄土地层 + 晚更新世　；参考：《科学通报》2014年14期

【摘要】：2009~2011年在陕西蓝田灞河右岸新发现8处旷野旧石器地点,采集石制品770件.研究表明,蓝田地区除存在以前认识比较充分的早更新世晚期到中更新世阶段的古人类旧石器地点之外,在灞河流域河流阶地黄土地层中还普遍埋藏有晚更新世阶段的旧石器遗存,这些遗址采取硬锤直接打击法和砸击法技术剥取石片;加工石制品的原料以来自于河流沉积物中的石英岩、石英、石英砂岩和火山岩砾石为主;石制品中既包含直接由砾石和大型石片加工而成的重型工具,如砍砸器、重型刮削器、手斧、手镐、薄刃斧和石球等,同时也含有一些小型石片和由小型石片修理而成的刮削器和尖状器等小型工具.蓝田地区新发现的旧石器产出层位既有灞河第三级阶地以上的中更新世黄土地层,也有第二级阶地上的晚更新世黄土地层,这一发现首次从地层和年代关系上证明蓝田地区阿舍利(Acheulian)类型旧石器工业遗址的时代最晚可延续到距今3~7万年间,它不仅使这一出土早-中更新世人类化石地区的古人类活动时间延续到晚更新世,而且显示在年代学上东亚地区与非洲和欧亚大陆西侧同类旧石器工业之间存在较大的鸿沟.
[Abstract]:From 2009 to 2011, 770 pieces of stone products were collected from 8 new paleolithic sites in the wilderness on the right bank of the Lantian River in Shaanxi Province. The study shows that apart from the Paleolithic sites of the late early Pleistocene to the Middle Pleistocene in the Lantian area, The paleolithic remains of the late Pleistocene stage are also commonly buried in the Yellow soil layer of the river terrace in Bahe River basin. Stone products are made mainly from quartz, quartz sandstone and volcanic gravel from river sediments; stone products contain heavy tools made directly from gravel and large pieces of stone, such as choppers, heavy scrapers, Hand axes, pick axes, thin blade axes, stone balls, etc., as well as small pieces of stone and small tools such as scrapers and sharpeners repaired from small pieces of stone. The newly discovered Paleolithic strata in the Lantian area include the middle Pleistocene loess layer above the third terrace of the Bahe River and the late Pleistocene loess layer of the second stage. This discovery for the first time proves that the age of the Acheulian-type Paleolithic sites in the Lantian region can last as late as 30, 000 to 70, 000 years ago, in terms of stratigraphic and chronological relations. It not only extended the time of Paleo human activities in the early and Middle Pleistocene fossil regions to the late Pleistocene, but also showed that there is a great gap between the East Asia region and the similar Paleolithic industries in Africa and the western side of Eurasia.
【作者单位】：中国科学院古脊椎动物与古人类研究所中国科学院脊椎动物演化与人类起源重点实验室;南京大学地理与海洋学院气候与全球变化研究院;贵州省文物考古研究所;中国科学院大学;陕西省考古研究院;
【基金】：中国科学院“百人计划”(KZCX2-YW-BR-24) 中国科学院战略性先导科技专项(XDA05130201,XDA05120704) 国家自然科学基金(41072122,41202127)资助
【分类号】：K876.2

【参考文献】