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Updated: Jul 13, 2026
08:14
Atom Probe Tomography Analysis of Exsolved Mineral Phases
Published on: October 25, 2019
インド亜大陸のトバ超大噴火の前と後の中古石器時代の集合体
Michael Petraglia1, Ravi Korisettar, Nicole Boivin
1Leverhulme Centre for Human Evolutionary Studies, University of Cambridge, Cambridge CB2 1QH, UK. m.petraglia@human-evol.cam.ac.uk
Science (New York, N.Y.)
|July 7, 2007
まとめ
7万4000年前の大規模なYoungest Toba Tuffの噴火は,人類の進化を止めることはできませんでした. 考古学的な証拠は,中古のホミニンがインドに存在し続けたことを示しており,この主要な火山の出来事を通じて地域的な生存を示唆しています.
科学分野:
- 古人類学は,古人類学である.
- 火山学 火山学とは
- 考古学考古学とは
背景:
- 7万4000年前の超火山発生である最年少トバ・タフ (YTT) の噴火は,地球環境に大きな影響を及ぼしました.
- 初期の人類の集団と人類の進化の軌跡に対するその正確な影響は,科学的な議論の対象であり続けています.
研究 の 目的:
- インド南部のホミニン集団に対するYTT噴火の影響を調査する.
- YTTイベントの期間中およびその後,この地域で人類集団が存続したかどうかを判断する.
主な方法:
- インド南部のジュレルー川渓谷にあるジャワラプールムの考古学的な発掘.
- YTT噴火に関連した層状図層で見つかった石器具組成 (中古時代の技術) の分析.
主要な成果:
- Jwalapuramの考古学的なアセンブリは,中古時代の技術の連続したシーケンスを示しています.
- YTTの地質層全体にこれらのツールの存在は,噴火前,噴火中,噴火後のホミニンの存在を示しています.
結論:
- インドのジャワラプラム地域では,最も若いトバ・タフの噴火の間,ヒト類の集団が存続した可能性が高い.
- YTT噴火は,この地域の中古時代のホミニンにとって重要な地域的絶滅やボトルネックを引き起こしていないかもしれません.
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