Methane Release in Submarine Landslides: A Seismic, Sedimentological, and Geochemical Study of the Storegga Slide, Offshore Norway

海底滑坡中的甲烷释放：挪威近海斯托雷加滑坡的地震、沉积学和地球化学研究

• 批准号: 0221366
• 负责人: W Steven Holbrook
• 金额: --
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0221366&HistoricalAwards=false
• 关键词: Methane; Release; Submarine; Landslides; Seismic

Award is for a coordinated seismic and coring study of the Storegga Slide on the Norwegian Margin. The Storegga slide developed in sediments thought to have contained substantial amounts of gas hydrate. Examining this slide area will test the hypothesis that submarine landslides can release methane from hydrates into the oceans and/or atmosphere and thereby affect climate. The study will test three major hypotheses; 1) How much gas hydrate is present in the Storegga region, 2) did methane escape as a result of the slide, and if so, how much? 3) does hydrate dissociation promote submarine landslides? A 43 day cruise of the R/V Ewing will acquire high resolution seismic reflection data, three component ocean bottom seismic data and jumbo piston cores.

该奖项授予对挪威边缘斯托雷加滑坡进行协调地震和取芯研究。斯托雷加滑坡是在沉积物中发育的，被认为含有大量的天然气水合物。检查这个滑坡区域将检验海底滑坡可以将水合物中的甲烷释放到海洋和/或大气中，从而影响气候的假设。该研究将检验三个主要假设； 1) Storegga 地区存在多少天然气水合物，2) 甲烷是否因滑坡而逃逸，如果是，逃逸量是多少？ 3）水合物分解会促进海底滑坡吗？ R/V Ewing 为期 43 天的巡航将获取高分辨率地震反射数据、三分量海底地震数据和巨型活塞岩心。