中文摘要：

丹江口库区双河二号旧石器地点位于河南省淅川县双河镇,埋藏于丹江左岸第三级阶地棕红色粘土层中。2010年中国科学技术大学科技史与科技考古系对该地点进行了考古发掘,揭露面积400平方米,出土石制品202件,类型包括石核、石片、石器、断块和裂片等。古人类选择河卵石为原料进行剥片和加工石器,且以石英岩为主;剥片工艺包括硬锤锤击法和砸击法;石制品总体以中小型居多;发现两件石器,刮削器和端刮器各一件,都以石片为毛坯;石制品特点中显示含有中国北方石器工业的因素。地层地貌对比表明,该地点可能形成于中更新世。

英文摘要：

The Shuanghe Paleolithic locality 2 was buried in the third terrace on the left bank of the Danjiang River, located in the Shuanghe town, Xichuan County, Henan Province. The site was excavated in 2010 by the Department of History of Science Scientific Archaeology of University of Science Technology of China. A total of 400m2 of the site was exposed during this excavation, which unearthed 202 stone artifacts. The stone assemblage includes cores, flakes, retouched tools, chunks and split. The most prominent raw materials utilized in this site were quartz cobbles to produce small or medium sized flakes and retouch tools. The principal flaking technique was direct percussion hammering and bipolar flaking. Two types of retouched flake tool were identified, an End-scrapper, and a Semi-side Scrapper. They resemble Northern Chinese Paleolithic lithic assemblage elements. The Stratigraphic and topographic comparison with other site indicated that the site was most likely formed during the Middle Pleistocene.