Manganese, vanadium, gallium and rare earth elements in the GEOTRACES North Atlantic zonal section

GEOTRACES 北大西洋纬向剖面中的锰、钒、镓和稀土元素

• 批准号: 0927951
• 负责人: Alan Shiller
• 金额: $ 17.49万
• 依托单位: University of Southern Mississippi
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-12-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0927951&HistoricalAwards=false
• 关键词: Manganese; vanadium; gallium; rare; earth

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). GEOTRACES is a newly initiated international oceanographic program to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the oceans and to establish an understanding of the sensitivity of these distributions to changing environmental conditions. During the GEOTRACES cruise to the North Atlantic basin in 2010, a scientist from the University of Southern Mississippi will determine gallium, vanadium, manganese, and rare earth elements in surface samples and throughout the water column. Samples will be taken from sites that exhibit the physical and biogeochemical processes that influence trace metals and their isotopes, namely strong meridional advection, boundary scavenging and sources, aeolian deposition, and input of intermediate waters from the Mediterranean and Labrador Seas. The resultant dataset should provide insight into cross margin exchange of these elements, as well as investigate redox processes and atmospheric inputs. As regards broader impacts, this project would contribute funds for the 'Our Ocean World', a podcast broadcast daily on hundreds of radio stations including the Voice of America. The goal of this outreach effort is to inform listeners around the world about news items and information related to ocean matters. One graduate student would be supported and trained as part of this project.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。GEOTRACES是一项新启动的国际海洋学计划，旨在确定控制海洋中关键微量元素和同位素分布的过程和量化通量，并建立对这些分布对不断变化的环境条件的敏感性的理解。2010年，GEOTRACES号将前往北大西洋盆地，来自南密西西比大学的一名科学家将在表层样品和整个水柱中测定镓、钒、锰和稀土元素。将从显示影响微量金属及其同位素的物理和生物地球化学过程的地点采集样本，即强经向平流、边界清除和来源、风成沉积以及来自地中海和拉布拉多海的中间水的输入。由此产生的数据集应该提供对这些元素的跨边界交换的洞察，以及研究氧化还原过程和大气输入。至于更广泛的影响，该项目将为“我们的海洋世界”提供资金，这是一个每天在包括美国之音在内的数百个广播电台播出的播客。这项外展工作的目标是向世界各地的听众通报有关海洋问题的新闻和信息。作为该项目的一部分，将支持和培训一名研究生。