seafloor spreading
(geology) The outward movement of the seafloor from central underwater ridges as a result of plate tectonics; the major cause of continental drift.
(finance) To reduce one's debt by selling off assets, especially those that were acquired with borrowed money.
A late Copper Age to early Bronze Age archaeological culture of the region between the Southern Bug, Dniester, and Ural rivers (the Pontic steppe), dating to 3300–2600 BC.
One who slights.
科学者たちは中央海嶺からプレートテクトニクスの働きにより海底が外側へ移動する現象を調べ、海洋プレートの動き方を理解しようとした。
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