榆树县周家油房旧石器新资料

NEW DATA ABOUT THE PALAEOLITH FOUND IN ZHOUJIAYOUFANG, YUSHU COUNTY, JILIN PROVINCE

在周家油房等地采集到披毛犀(Coelodonta antiquitatis Blumenbach),猛犸象(Mammuthus),野牛(Bison),鼢鼠(Myspalax)等化石。并在二级阶地觅到这一动物群的主要成员——野马(Equus)化石。证实这一动物群埋藏于松花江第二级阶地松散堆积物中。通过C^(14)同位素年龄测定,测得猛犸象门齿年龄距今39400±250年,猛犸象肢骨年龄距今30810±1385年,进一步说明这一动物群生存于晚更新世晚期,与化石产出地层时代吻合。发现的旧石器石片,原料为黑矅岩,从石片的形态、打击特点,都表明当时人具有较高的打片水平。这是迄今该区发现的最好的石片。

Zhoujiayoufang, Yushu County, Jilin Province is one of the three known localities, where the late pleistocene wooly rhinoceros and wooly mammoth in north China were discovered.We have collected many fossils, such as, coelodonta antiguitatis Blumeubach, Mammoths Bison,etc., in field search. Especially we have found Equus which was an important member of the woolly rhinoceros and woolly mammoth assemblage, and thus,confirmed that the woolly rhinoceros and woolly mammoth were burried in the loose sediment on the second terrace of Songhua River.Moreover, by C14 dating, we know that the Mammoth lived 39400±250 year B. P. (the material used is an incisor) or 30810±1385 year B. P. (the material is a thigh bone), which is concordant with the age of the strata containing the fanua i.e.,the late latepate-Pleistocene.Further, we also found a few palaeolith. Among then, the finest one is a piece of stoneslice, of obsidian, which is in iregular rectanglar shape and measures 42×25× 5 mm. Its shape and the striking character indicate that the people then lived had developed a higher skiu to strike stoneslice. This stoneslice is the finest one so far discovered.