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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 Ancient Black Sea shipwrecks ： ウィキペディア英語版 Ancient Black Sea shipwrecks Ancient Black Sea shipwrecks is the study of shipwrecks found in the Black Sea which date to Antiquity. In 1976, Willard Bascom suggested that the deep, anoxic waters of the Black Sea might have preserved ships from antiquity because typical wood-devouring organisms could not survive there. At a depth of 150m, the Black Sea contains insufficient oxygen to support most familiar biological life forms. ==Meromictic composition and preservation== Originally a land-locked fresh water lake, the Black Sea was flooded with salt water from the Mediterranean Sea during the Holocene. The influx of salt water essentially smothered the fresh water below it because a lack of internal motion and mixing meant that no fresh oxygen reached the deep waters,〔Oğuz, T., Latun, V.S., Latif, M.A., Vladimirov, V. L., Sur, H. I., Markov, A. A., Ozsoy, E. Kotovschichkov, B. B., Eremeev, V.N., and Unluata, U., 1993, Circulation in the surface and intermediate layers of the Black Sea, Deep Sea Research 1.40: 1597-612.〕 creating a meromictic body of water. The anoxic environment, which is hostile to many biological organisms that destroy wood in the oxygenated waters, provides an excellent testing site for deep water archaeological survey. 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「Ancient Black Sea shipwrecks」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.