6万5千年前,北オーストラリア の 人 の 占領
Chris Clarkson1, Zenobia Jacobs2,3, Ben Marwick3,4
1School of Social Science, University of Queensland, Brisbane, Queensland 4072, Australia.
Nature
|July 21, 2017
まとめ
オーストラリア に 人間 が 到着 し た 時期 は,少なくとも 6万5千 年 前 に 遡る と いう こと は,マジェドベベ の 岩 の 隠れ 場所 の 発見 から 明らか に なり ます. この発見は初期の現代人の分散と 古代ヒト類との相互作用の理解に影響を与えます
科学分野:
- 考古学
- 古人類学
- オーストラリア史前史
背景:
- 人類がオーストラリアにたどり着いた時期は アフリカから現代の人類が 散らばったことを理解するのに 極めて重要です
- ネアンデルタール人やデニソヴァ人のような 古代ヒトとの相互作用に関する議論も 参考にしています
- オーストラリアのメガファウナの絶滅に対する 人間の影響は もう"つの重要な調査分野です
研究 の 目的:
- オーストラリアのマジェドベベの 岩のシェルターで 人々が住んでいた時期を より正確に把握するためです
- オーストラリアの初期の人間の技術的能力と行動の性質を調査する.
主な方法:
- マジェドベベの岩の避難所での新しい発掘.
- アーテファクトの堆積を分析する
- 文脈の整合性を確認するために,アーテファクトのリフィーティング.
- 光学的な年代測定と堆積物分析
主要な成果:
- マジェドベベは 約6万5千年前に人類が住み始めた
- 特徴的な石器の組み立てが発見されました 研磨石,磨き石,地縁の斧の頭などです
- ストラティグラフィックの整合性は,人工物のリフィットと年代測定技術によって確認されました.
結論:
- この証拠は,オーストラリアへの人間の到着のための新しい最低年齢を確立します.
- この発見は アフリカから現代の人類が 散らばった時期についての洞察を与えてくれます
- 現代のヒトと古代ヒト類 (ネアンデルタール人,デニソヴァン) の間の早期の相互作用を示唆している.
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