Proto-Atlantic Ocean

Japanese: Proto-Atlantic Ocean(英語表記)ProtoAtlanticOcean
Proto-Atlantic Ocean

...So, at the Penrose Conference of the Geological Society of America held in January 1975, it was proposed to call this cycle the Wilson Cycle, and it was adopted. For example, research on the ocean floor has proven that the present Atlantic Ocean began to split about 200 million years ago, gradually expanding to its present size, but this can be extended to the Paleozoic Era, and it is believed that the Proto-Atlantic Ocean existed in the early Paleozoic Era (about 600 million years ago). It is also believed that a subduction zone formed on the North American side of the Paleo-Atlantic Ocean about 500 million years ago, and the Paleo-Atlantic Ocean began to close, and by 370 million years ago it had completely closed, causing North America to collide with Europe and Africa, creating an orogenic belt. ...

*Some of the terminology that refers to "Proto-Atlantic Ocean" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…そこで75年1月に開かれた全米地質学会GSAのペンローズ会議において,このサイクルをウィルソンサイクルとよぶことが提案され,採用された。 例えば,現在の大西洋が約2億年前に裂け始め,しだいに拡大して現在の大きさになったことは大西洋の海底の研究から証拠立てられているが,これを古生代にも延長して,古生代初期(約6億年前)にも古大西洋Proto‐Atlantic Oceanが存在したと考える。そして,約5億年前から古大西洋の北米大陸側にサブダクション帯を生じて古大西洋は閉じ始め,3億7000万年前までには完全に閉じて北アメリカとヨーロッパ・アフリカは衝突して造山帯をつくったとする。…

※「Proto-Atlantic Ocean」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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