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1990年春天,中国科学院古脊椎动物与古人类研究所、北京市文物研究所和密云县文管所联合组成考察队,在密云县进行史前考古调查,在该县上甸子乡黄土梁村与太师屯乡松树峪村附近发现了两处旧石器地点,获得石制品五十余件,其中包括石核、石片、砍砸器和刮削器等。这些文化遗物有的出自潮河第三级阶地的红色粘土中,有的出自安达木河第二级阶地的褐黄色粘土中。根据地貌、地层和石制品的性质来看,黄土梁村旧石器
The spring of 1990, the Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology, Beijing Institute of Cultural Relics and Miyun County, a joint inspection team composed of investigation in Miyun County, a prehistoric archaeological investigation in the county Shangdian Township Huangtouliang and too Shuntun Township Pine Village near the discovery of two Paleolithic sites, access to more than 50 pieces of stone products, including stone, stone tablets, cut-off devices and scrapers. Some of these cultural relics come from the red clay of the third terrace of Chao River, and some of the brown clay from the second terrace of the Andamu River. According to the topography, strata and the nature of stone products, loess Liangcun Paleolithic