科学 · 発信地 US / UK
A meteor hit Oklahoma 100 million years later than scientists thought
出典: FlexChar · 公開 2026/10/04 14:41

A meteor crater buried beneath Oklahoma has turned out to be nearly 100 million years younger than scientists thought. Zircon crystals show the Ames impact occurred about 370 million years ago, meaning it was not part of the mysterious Ordovician bombardment once linked to a possible ring of debris around Earth.
Instead, the impact coincided closely with a major mass extinction that devastated marine life.
科学面でFlexCharが伝えている話題です。A meteor crater buried beneath Oklahoma has turned out to be nearly 100 million years younger than scientists thought. Zircon crystals show the Ames impact occurred about 370 million years ago, meaning it was not part of the mysterious Ordovician bombardment once linked to a possible ring of debris around Earth. いま検索と会話が集まっているため、FlexCharが取り上げています。
FlexCharの編集メモ。全文は出典元にあります。
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