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They mark out the rim of a giant crater.
它們標志著一個巨大隕坑的邊緣
Scientific instruments show the structure of the underlying rock has been deformed,
科學儀器顯示 下面巖石的結構被扭曲了
revealing the boundaries of a colossal meteorite impact crater.
讓人看到了一個巨大隕石撞擊形成的坑的邊緣
This amazing cavern is part of a bigger story,a much bigger story.
這個不可思議的沼坑背后是個更震驚的故事 非常讓人震驚
Sixty-five million years ago, this was the site
6千5百萬年前，就在這里
of one of the most catastrophic impacts in Earth's history.
發生了地球上最具毀滅性的撞擊
What became known as the Chicxulub meteorite landed here
一個被稱作是希克蘇魯伯的隕石掉到了這里
and that triggered the extinction of the dinosaurs.
導致了恐龍的滅絕
The meteorite was likely over nine miles across,
隕星直徑15公里
enough to cause utter devastation across the whole planet.
足夠導致整個星球的毀滅
It exploded with the force of one hundred million million tons of TNT.
它的爆炸力相當于一億兆噸炸藥爆炸
The blast sent a giant plume of vaporised rock out into space.
這次爆炸導致巨大的巖石蒸發進入外太空
A crater was punched half a mile into the Earth's crust.
地殼上產生了30公里深的隕坑
