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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Aleutian Trench ： ウィキペディア英語版 Aleutian Trench The Aleutian Trench (or Aleutian Trough) is an oceanic trench along a convergent plate boundary which runs along the southern coastline of Alaska and the Aleutian islands. The trench extends for 3,400 km from a triple junction in the west with the Ulakhan Fault and the northern end of the Kuril-Kamchatka Trench, to a junction with the northern end of the Queen Charlotte Fault system in the east. It is classified as a "marginal trench" in the east as it runs along the margin of the continent. The subduction along the trench gives rise to the Aleutian arc, a volcanic island arc, where it runs through the open sea west of the Alaska Peninsula. As a convergent plate boundary, the trench forms part of the boundary between two tectonic plates. Here, the Pacific Plate is being subducted under the North American Plate at a dip angle of nearly 45 degrees. The rate of closure is ~3in. (8 cm) per year.〔(【引用サイトリンク】 title=Aleutian Trench )〕 ==Trench morphology== The north side of the trench slopes 3°–4° and the south side 1°–4°.〔(【引用サイトリンク】 title=Profile of Aleutian Trench )〕 The deepest part of the Aleutian trench has been measured at at 51.21°N, 174.83°E., located about 145 km SSW of Buldir Island. Center pressure: 10762psi (732atm), 74 MPa (732atm) Metric units.〔(【引用サイトリンク】 title=Aleutian Trench Data )〕 Variations in total magnetic intensity (residual) of more than 600 γ were found in the center of the trench and more than 1100 γ on the southern flank.〔(【引用サイトリンク】 title=Magnetic Information )〕 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「Aleutian Trench」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.