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在人类演化研究中,不同地区早期人类及石器技术的年代问题一直是争论的焦点。对华北泥河湾盆地的小长梁和洞沟这两个平行的湖相沉积剖面作了详细的磁性地层学研究,为20多年前在这里发现的旧石器进行了精确定年。古地磁结果表明,小长
In the study of human evolution, the era of early human and stone technology in different regions has been the focus of debate. A detailed magnetic stratigraphic study was made on two parallel lacustrine sedimentary sections of Xiaoliangliang and Donggou in the Nihewan basin of the Nihonbai Basin. The Paleolithic discovered here more than 20 years ago was precisely dated. Palaeomagnetic results show that small long