【摘要】 东方广场位于北京王府井地区。施工开挖中发现，在埋深大约１０－５ ｍ 和１２ ｍ 处分别有２ 层河流砂层，含化石、石器、灰烬等物。经热释光断代方法测定，上层约为距今１－５ 至１－９ 万年，下层约为距今２－２ 至２－６ 万年。更多还原

【Abstract】 Dongfang Square is situated in Wangfujin area of Beijing.Under the ground lever there is an upper sand layer of river at 10 5?m and a lower sand layer of river at 12?m. Some fossils, stone artifacts or ashes were found in the layers while digging bases for some buildings. The upper layer age is 15 to 19?ka B.P.and the lower layer age is 22 to 26?ka B.P.with thermoluminescence dating.更多还原