翻訳と辞書 Words near each other ・ Plus minus method ・ Plus Nine Boys ・ Plus None ・ Plus One ・ Plus One (band) ・ Plus One (TV series) ・ Plus One Animation ・ Plus Rien ・ Pluneret ・ Plungar ・ Plunge ・ Plunge Creek ・ Plunge dip ・ Plunge for distance ・ Plunge Into Darkness ・ Plunge pool ・ Plunger ・ Plunger (disambiguation) ・ Plunger lift ・ Plunger pump ・ Plunger-class submarine ・ Plunging fire ・ Plungington ・ Plungė ・ Plungė District Municipality ・ Plungė Manor ・ Plunk ・ Plunk Lake, Texas ・ Plunket Point ・ Plunket shark Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Plunge pool ： ウィキペディア英語版 Plunge pool A plunge pool (or plunge basin or waterfall lake) is a depression at the base of a waterfall created by the erosional force of falling water and rocks where it lands.〔Marshak, Stephen, 2009, ''Essentials of Geology,'' W. W. Norton & Company, 3rd ed. ISBN 978-0393196566〕 ==Formation== Plunge pools are formed under the force of a natural source, such as a waterfall or rapids, but also as the result of scour from man-made objects such as spillways and bridge abutments and are often very deep. The swirling water, sometimes carrying rocks within it, erodes the riverbed into a basin, often featuring irregular and rough sides. Plunge pools can remain after the waterfall has ceased to exist or the stream has been diverted. Plunge pools are erosional features which occur in the youthful stage of a river. When soft rock has been eroded back to a knickpoint, water constantly bombards its base. Because this rock is often less dense than surrounding strata, the water from the higher grade continues eroding downward. 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「Plunge pool」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.