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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 British Mid-Ocean Ridge Initiative ： ウィキペディア英語版 British Mid-Ocean Ridge Initiative The British Mid-Ocean Ridge Initiative (the BRIDGE Programme) was a multidisciplinary scientific investigation of the creation of the Earth’s crust in the deep oceans. It was funded by the UK’s Natural Environment Research Council (NERC) from 1993 to 1999. ==Mid-Ocean ridges== (詳細はtectonic plates are separating, allowing mantle rock to rise to the seafloor and harden, creating new crust. The addition of this crust can cause ocean basins to widen perpendicular to the ridge. This seafloor spreading is the engine of continental drift. At intervals along the mid-ocean ridges super-heated mineral-rich fluids are vented from the seabed. These hydrothermal vents are populated by animal and bacterial species not found elsewhere on Earth. BRIDGE investigated the geological setting of the ridge, the geochemistry of vent fluids, and ways in which biological communities survive in this apparently hostile environment. To achieve this the programme developed novel deep-ocean technologies for deployment from surface ships and manned submersibles. It also conducted experimental research into the mechanical and chemical nature of the rocks and underlying crust in these active volcanic regions. The scale of the investigation ranged from extensive regional studies mapping unexplored seafloor to microscopic and chemical analyses at individual vent sites. To achieve the programme’s objectives work was focused at five contrasting locations: the Mid-Atlantic Ridge at 24–30°N; the Mid-Atlantic Ridge at 36–39°N; Iceland and the Reykjanes Ridge to its south west; the Scotia back-arc basin (SW Atlantic); and the Lau basin (SW Pacific). Intensive localised studies were made within these areas. 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「British Mid-Ocean Ridge Initiative」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.