まとめ
古代インディアンは11,000年以上前に北極のアラスカを含むベリンギアを占領し,北米の文化的起源に関する以前の理論に異議を唱えた. この古代の存在は,以前に理解されていたよりも,この地域への早期の人間の移住を示唆しています.
科学分野:
- 考古学考古学とは
- 古人類学は,古人類学である.
- 四次地質学 四次地質学
背景:
- アジアと北アメリカを結ぶ陸上の橋であるベリンギアは,初期の人類の移住を理解するために極めて重要です.
- アラスカの北極に古代インディアンの存在のタイミングと範囲は,議論の余地があります.
- 以前のモデルでは,パレオインディアン文化は北米大陸の中央部にのみ発生したと示唆されていた.
研究 の 目的:
- 北極アラスカのメサ遺跡から得た証拠を用いて,ベリンギアにおける初期の人間の居住を調査する.
- この地域における古代インディアンの存在の時間的期間を決定する.
- パレオインディアン文化の起源と拡散を再評価する.
主な方法:
- メサ遺跡での考古学的な発掘.
- 炉の特徴の放射性炭素年代測定. 炉の特徴の放射性炭素年代測定. 炉の特徴の放射性炭素年代測定. 炉の特徴の放射性炭素年代測定.
- パレオインディアンの弾丸点の分析.
主要な成果:
- 11つの放射性炭素年代測定は,現在より9,730年から11,660年前の間 (B.P. ) を実施する.
- パレオインディアンの弾丸点は,日付のある炉と関連して発見されました.
- 占領時期は,他のアラスカの文化複合体と重なり合っており,紀元前10,300年から11,000年の間に顕著な休憩があった.
結論:
- メサ遺跡は,ベリンギアにおけるパレオインディアン居住の証拠を提供し,中大陸起源の仮説に異議を唱える.
- 後期氷河期の気候の変動は,アラスカ北部の人間の定住パターンと分散に影響を及ぼした可能性がある.
- この発見は,初期の人間の適応とベリンギア全土での移動に関する私たちの理解を広げています.
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