Emperor Seamount Chain

Japanese: 天皇海山列 - てんのうかいざんれつ（英語表記）Emperor Seamount Chain

Also known as the Emperor Seamount System. A chain of seamounts that runs north and south in the Northwest Pacific Ocean. It runs south from near the western end of the Aleutian Islands along the 170° east longitude to 30° north latitude. It is about 2500 km long. It is a chain of more than a dozen guyots (flat-topped seamounts) named after ancient emperors, such as Jimmu, Nintoku, Suiko, Tenchi, and Kanmu. The surrounding seafloor is about 6000 m deep, but the summits of the seamounts are 1300 to 2300 m deep. It was named the Northwest Pacific Submarine Mountain Range by Tosaburo Tayama in 1952, but was later named the Emperor Seamount Chain by American R. Dietz.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

天皇海山系ともいう。北西太平洋を南北に走る海山列。アリューシャン列島の西端付近から東経 170°線に沿って南下し，北緯 30°まで達する。全長約 2500km。神武，仁徳，推古，天智，桓武など，古代の天皇の名を冠した十数峰のギヨー (平頂海山) が連なる。周辺の海底は深度約 6000mであるが，海山の頂上は深度 1300～2300m。田山利三郎によって 1952年に北西太平洋海底山脈と命名されたが，のちにアメリカの R.ディーツが天皇海山列と名づけた。

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