English Dictionary

Snowball Earth

固有名詞

(geology) The planet Earth when its surface was almost completely frozen some time earlier than 650 million years ago, according to a hypothesis aiming to explain certain enigmatic features in the geological record, such as apparently glacial sedimentary deposits found at tropical paleolatitudes.

日本語の意味

科学的な仮説に基づく用語で、約6億5000万年前以前に地球の表面がほぼ全面的に凍結していた状態の地球を指す。

The Snowball Earth hypothesis proposes that, more than 650 million years ago, the planet may have been almost entirely covered in ice, which could explain glacial deposits found at tropical paleolatitudes.

地球がほぼ全面的に凍結していたとする仮説は、6億5千万年以上前に地表がほとんど氷で覆われていた可能性があり、これが熱帯の古緯度で見つかる氷成堆積物を説明し得ると考えられている。

意味（1）

(geology) The planet Earth when its surface was almost completely frozen some time earlier than 650 million years ago, according to a hypothesis aiming to explain certain enigmatic features in the geological record, such as apparently glacial sedimentary deposits found at tropical paleolatitudes.