摘要
庙后山是位于我国东北的重要中更新世人类遗址。报道该地点出土人类化石的第5、6堆积层次生碳酸盐岩和骨化石样的铀系测年结果。夹生于第6堆积层3个钙板的年龄分别为276、>535、346ka,其下第5层中的钙板为526±31ka,据此第6层顶部应至少为200ka,第5层中部应大于500ka。结果远大于该地点原基于骨化石铀系测年的年代框架,支持中国直立人和早期智人交替比原认为约200ka早得多的观点。
The Miaohoushan site, with the recovery of three hominid fossils, 76 stone artifacts and a faunal assemblage of 72 mammalian species, is known for marking the northernmost human presence in Middle Pleistocene China. This paper presents^230Th/^234U dates on four calcite and two fossil samples from the hominid fossil-hearing 5^th and 6^th depositional layers of the site. The flowstone intercalated in 5^th layer yields an age of 526 ± 30 ka, while three speleothem horizons of the 6^th layer give ages of 276 -38^+60, 〉535 and 346-60^160 ka respectively. Based on these results we propose that the topmost section of the 6^th layer should be no less than 200 ka, and the middle part of the 5^th layer older than 500 ks. The results here presented, much older than the previous temporal frame based on the U-series dates on fossil hones, are in support of the proposition for a much earlier Homo erectus-archaic Homo sapiens interface in China.
出处
《东南文化》
北大核心
2007年第3期54-57,共4页
Southeast Culture
基金
国家自然科学基金(40373031)
Wenner-Gren Foundation(Gr.6975)资助项目
关键词
庙后山遗址
次生碳酸盐岩
铀系年代
直立人
早期智人
Miaohoushan site hominid fossil U-series dating speleothem calcite the erectus-sapiens interface