作　　者： ; ;

机构地区： 贵州大学化学与化工学院化学系

出　　处： 《人类学学报》 1992年第1期93-100,共8页

摘　　要： 本文基于钟乳石样的铀系年龄,提出了华南旧石器时代重要遗址贵州黔西观音洞的年代界限;A组堆积小于4万年;B组第3层小于5万年;B组第4—8层5—24万年,如地层研究能证明B组堆积物的一致性,其年代应可限制在10—19万年之间。本文数据不支持地层古生物研究关于观音洞A、B二组堆积分属中更新世中、早期的假设,但证实了B组堆积的下部应属中更新世的晚期,为含嵌齿象科的大熊猫—剑齿象动物群迄今最晚的地史记录。观音洞以其丰富的内涵,有可能成为我国南方跨越旧石器时代早、中,晚期文化的代表。 Guanyindong Cave, situated at Qianxi County in Guizhou Province, with an abundance of paleolithic artifacts and of fossil remains', is considered as one of the most important paleolithic sites in South China. The Ailuropoda-Stegodon fauna of Group B deposits was assumed to be formed in early Middle Pleistocene judging mainly by the existence of Tertiary survi vals, and Group A deposits without Tertiary survivals in Middle Pleistocene. The biostrati-graphic conclusion contradicts sharply with the results of U-series dating of fossil bones which give an age range of 57-115 ka for all the artifact and fossil containing layers. Based on the U-series dating of speleothem samples, the Group A deposits of this site should be younger than 40 ka, the 3rd layer of Group B younger than 50 ka, and 4-8 layers of Group B between 50 and 240 ka. If the stratigraphic study may prove the uniformity of Group B deposits, the age of 4-8 layers may be further narrowed to 100-190 ka. The results of this paper do not support the biostratigraphic relative age, but confirm that the lower part of Group B belongs to a late period of Middle Pleistocene, being the latest fossil record of Gomphotheriidae. This site may represent the cultural evolution traversing the lower, middle and upper paleolithic periods in South China.

关 键 词： 观音洞 钟乳石 铀系年龄

领　　域： [天文地球] [生物学]