...This type of occurrence is called serpentinite mélange. Its formation is thought to be related to the subduction of the oceanic crust and upper mantle (oceanic lithosphere). In oceanic regions, large amounts of serpentinite have been collected from fracture zones associated with transform faults, supporting the idea that the upper mantle beneath the oceanic crust is made up of ultramafic rocks. *Some of the terminology that refers to "oceanic lithosphere" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このような産状を蛇紋岩メランジュと呼ぶ。この形成は海洋地殻‐上部マントル(海洋リソスフェア)のサブダクションに関連していると考えられている。海洋地域ではトランスフォーム断層に伴う断裂帯から多量の蛇紋岩が採集されており,海洋地殻下の上部マントルが超塩基性岩よりなることを裏づけている。… ※「海洋リソスフェア」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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