摘要
本文试图用北京猿人和山西丁村人所在地层中伴生动物化石内的天门冬氨酸、异亮氨酸外消旋程度推算北京猿人和山西丁村人地点的年龄和山顶洞所经历的平均温度。
The racemization reaction rates of aspartic acid and isoleucine acid are determined in some animal fossils from strata where Peking: Man and Dingcun Man where found. On the basis of the result from the determination, the accumulation ages and ancient environment of the strata are estimated. The accumulatin ages of the third and fourth strata at No. 1 Location of Zhou-koudian were about 200,000 years ago and that of the eleventh stratum about 687,000 years ago. The average temperature which Shandingdong has undergone since it began accumulation is 8.3°C, which is under the present temperature. Based on the D/L values of amino acid racemization in a kind of shell fossil from some sections of Dingcun, Shanxi, it is estimated that the Living ages of Dingcun Man were about 700,000-900,000 years ago.
出处
《人类学学报》
CSCD
北大核心
1989年第2期177-181,共5页
Acta Anthropologica Sinica
