期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
广西柳江土博咁前洞的铀系年代 被引量:22
1
作者 沈冠军 王頠 +1 位作者 王谦 潘亚娟 《人类学学报》 CSCD 北大核心 2001年第3期238-244,共7页
本文报道晚期智人化石地点广西柳江土博前洞新生碳酸盐岩和骨化石样的铀系测年结果。该地点表层钙板在约 94ka前开始形成 ,含化石粘土堆积叠压的钙板年代为约 2 2 0ka ,人牙化石应位于二者之间。二个动物化石样的二种铀系法年代范围为... 本文报道晚期智人化石地点广西柳江土博前洞新生碳酸盐岩和骨化石样的铀系测年结果。该地点表层钙板在约 94ka前开始形成 ,含化石粘土堆积叠压的钙板年代为约 2 2 0ka ,人牙化石应位于二者之间。二个动物化石样的二种铀系法年代范围为 85— 139ka ,表明该地点含化石堆积与表层钙板间无地层倒序现象 ,支持人牙化石大于 10 0ka的结论。邻近的柳江晚期智人化石地点和柳州白莲洞人类遗址铀系测年的结果与本文一致。具现代解剖特征智人在中国南方出现的时间 ,很可能不晚于西亚和非洲。在现代人类起源方面 ,中国不应是远离中心。 展开更多
关键词 土博人类化石 新生碳酸盐岩 铀系年龄 现代人类起源 甘前洞 广西 测年
下载PDF
U-series Dating of Ganqian Cave in Guangxi and Its Anthropological Implications
2
作者 SHEN Guan-jun SHI Li +1 位作者 WANG Wei WANG Qian 《人类学学报》 CSCD 北大核心 2002年第S1期78-87,共10页
From Ganqian (Tubo) Cave a total of 17 hominid teeth attributed to late Homo sapiens has been collected along with an abundance of mammalian fossils. The fossiliferous deposits are bracketed by the capping and second ... From Ganqian (Tubo) Cave a total of 17 hominid teeth attributed to late Homo sapiens has been collected along with an abundance of mammalian fossils. The fossiliferous deposits are bracketed by the capping and second flowstone layers, which yielded 230 Th/ 234 U dates of ~93 and ~220 ka, marking the minimum and maximum age of the hominid teeth respectively. Two U series methods performed on two mammalian teeth gave dates in the range of 85 and 139 ka, lending support to the stratigraphic order of the depositional sequence. The results presented in this paper point to an occurrence of modern Homo sapiens in southern China much earlier than has been thought, which is supported by the dating of nearby Liujiang and Bailiandong hominid sites. Taken together, these data suggest that China should not be considered as a backwater in recent human evolution where all the previous populations were replaced. 展开更多
关键词 tubo hominid Ganqian Cave U series dating Speleothem calcite Anatomically modern Homo sapiens
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部