Atmospheric Trace Element Inputs to Surface Ocean Waters II: Biogeochemical Processing and Flux in the Atlantic

大气微量元素输入到表层海洋水域 II：大西洋的生物地球化学处理和通量

• 批准号: 9812419
• 负责人: Thomas Church
• 金额: $ 40.45万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-10-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9812419&HistoricalAwards=false
• 关键词: Atmospheric; Trace; Element; Inputs; Surface

ABSTRACTOCE-9812419During the past decades, marine geochemists have begun to direct renewed attention to the physical and biochemical processes involving trace metals in the central ocean basins where delivery from terrestrial sources via the atmosphere of apparently of primary importance. Much of the renewed interest has arisen because of recent demonstration that certain trace metals may control oceanic biological productions and, consequently, much of the biological and geochemical activity going on in the deep sea. The principal investigator is a well-established expert in marine trace metal chemistry. This project will continue his ongoing studies by focusing on oceanic responses to atmospheric deposition of trace metals such as aluminum, iron, manganese, cadmium, zinc, copper, and lead in the Sargasso Sea. The approach will involve both new sampling near Bermuda as well as chemical analyses of archived samples of particles and seawater from the region. As in his earlier studies, the project will be enriched through coordination with a variety of other scientists conducting related trace metal and biogeochemical studies in the North Atlantic.

在过去的几十年里，海洋地球化学家们开始重新关注中央海洋盆地中痕量金属的物理和生物化学过程，在这些盆地中，陆源通过大气的输送显然是首要的。 最近的研究表明，某些微量金属可能控制着海洋生物的生产，从而控制着深海中的许多生物和地球化学活动，这在很大程度上重新引起了人们的兴趣。 首席研究员是海洋微量金属化学方面的知名专家。 该项目将继续他正在进行的研究，重点是海洋对马尾藻海中铝、铁、锰、镉、锌、铜和铅等微量金属大气沉积的反应。 这一办法将包括在百慕大附近进行新的取样以及对该区域的微粒和海水存档样本进行化学分析。 与他以前的研究一样，将通过与在北大西洋进行有关痕量金属和地球化学研究的其他科学家协调，充实该项目。