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・ Aguiã
・ Aguja Formation
・ Aguja Saint Exupery
・ Aguja skate
・ Agujaceratops
・ Agujetas de color de rosa
・ Agujjim
・ Agula
・ Aguleri
・ Agulhas
・ Agulhas Bank
・ Agulhas Basin
・ Agulhas Current
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・ Agulhas National Park
Agulhas Passage
・ Agulhas Plateau
・ Agulhas Return Current
・ Aguli Khristan Sikla Bodol
・ Agulla
・ Agulla (snakefly)
・ Agulla mineralensis
・ Agulla protomaculata
・ Agullana
・ Agullent
・ Agullo
・ Agullu, Kaş
・ Agulo
・ Agulsky District
・ Agulu


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Agulhas Passage : ウィキペディア英語版
Agulhas Passage

The Agulhas Passage is an abyssal channel located south of South Africa between the Agulhas Bank and Agulhas Plateau. About wide, it connects the Natal Valley and Transkei Basin in the north to the Agulhas Basin in the south and is the only near-shore connection between the south-western Indian Ocean and South Atlantic Ocean.
==Geology==
The formation of the Agulhas Passage was initiated by the Gondwana break-up some (Ma) and the rifting of the Somali and Mozambique Basins, an event associated with the formation of the ocean floor in the Weddell Sea 147 Ma.〔
Between the Agulhas Bank and the Agulhas Passage the boundary between the Earth's crust and the mantle (the Moho) ascend from over which is normal for a continent-ocean boundary. The crustal thickness under the Agulhas Passage varies from which is equally normal for oceanic crust. It is possible, however, that volcanic flows from the Agulhas Plateau large igneous province (LIP) added crustal material to the Agulhas Passage (which is 160-120 Ma) during the LIP formation (100-80 Ma) and that the crust under the passage was originally thinner.
The sedimentary layers are very thin in the western Agulhas Passage, in places only . In the central parts of the passage, in contrast, they can reach and form sediment drifts. The southern part is affected by thinning and erosion.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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