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Pacific-Antarctic Ridge : ウィキペディア英語版 | Pacific-Antarctic Ridge
The Pacific-Antarctic Ridge (PAR) is a divergent tectonic plate boundary located on the seafloor of the South Pacific Ocean, separating the Pacific Plate from the Antarctic Plate. It is regarded as the southern section of the East Pacific Rise in some usages, generally south of the Challenger Fracture Zone and stretching to the Macquarie Triple Junction south of New Zealand.〔(【引用サイトリンク】url=http://www.britannica.com/EBchecked/topic/437577/Pacific-Antarctic-Ridge )〕 ==The Louisville seamount chain==
Stretching for 4,300 km north-west from the Pacific-Antarctic Ridge to the Osbourn Seamount at Tonga and Kermadec Junction〔 〕 is a long line of seamounts called the Louisville seamount chain - the longest such chain in the Pacific〔(【引用サイトリンク】url=http://www.agu.org/books/gm/v043/GM043p0283/GM043p0283.shtml )〕 - thought to have formed from the Pacific Plate sliding over a long-lived center of upwelling magma called the Louisville hotspot. The Louisville hotspot takes its name from its discoverer, George Louis, a well-known geologist.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pacific-Antarctic Ridge」の詳細全文を読む
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