東北アジアにおける人類の最古の存在

R X Zhu¹, K A Hoffman, R Potts

¹Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China. rxzhu@mail.c-geos.ac.cn

Nature

|September 28, 2001

まとめ

東アジアで最も古い石器は,136万年前のもので,中国のニヘワン盆地で発見された. この発見は,この地域における初期の人類居住の重要な証拠を提供します.

科学分野:

旧石器時代の考古学について
パレオマグネティズム (古磁気学) とは
人間の進化人類の進化

背景:

初期の人類居住と石器技術の時代は,世界中で議論されています.
以前の中国のニヘワン盆地で考古学時代の人工物の発見は,正確な年代測定が欠けていました.

研究の目的:

ニヘワン盆地のシャオチャングリアンで見つかった古石器時代の石器具の正確な年代を決定する.
東アジアにおける初期の人間の占領のタイムラインを確立する.

主な方法:

湖の沈殿物の磁気ストラティグラフィック分析.
地磁気極性逆転 (オルドヴァイとジャラミッロのサブクロン) を用いてアーティファクト層の年代測定.
堆積率の推定. 堆積率の推定. 堆積率の推定. 堆積率の推定. 堆積率の推定. 堆積率の推定.

主要な成果:

アーティファクト層は,約136万年前のものである.
この層は逆極性磁気圏内に位置しています.
この発見は,東アジアで知られている最も古い古石器時代の石器を裏付けている.

結論:

シャオチャングリアン遺跡は,北緯40度に位置する東アジアで確認された最古の人間の居住地です.
この136万年前の日付は,この地域における初期のヒト類の分散と技術的発展の重要な基準となる.

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