Grün R, Huang P H, Wu X, Stringer C B, Thorne A G, McCulloch M
Quatemary Dating Research Centre, Australian National University, Canberra ACT.
J Hum Evol. 1997 Jan;32(1):83-91. doi: 10.1006/jhev.1996.0094.
An ESR dating study on teeth collected from layers 3, 6/7 and 10 at Locality 1, Zhoukoudian provides results that are in general agreement with an earlier multi-dating study and confirm an age range of 300-550 ka for the Homo erectus remains in the Peking Man Cave. Uncertainties due to U-uptake and the external gamma dose rates do not allow very precise age estimates for the respective layers.
一项对周口店第1地点第3、6/7和10层出土牙齿的电子自旋共振（ESR）测年研究结果，总体上与早期的多方法测年研究一致，并确认北京人洞穴中直立人化石的年龄范围为30万至55万年。由于铀吸收和外部伽马剂量率导致的不确定性，无法对各层进行非常精确的年龄估计。
