Shona and Discovery Seamount Chains, South Atlantic - geochemistry program

南大西洋绍纳和发现海山链 - 地球化学计划

• 批准号: 0526529
• 负责人: Cornelia Class
• 金额: $ 5.48万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-15 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0526529&HistoricalAwards=false
• 关键词: Shona; Discovery; Seamount; Chains; South

AWARD (0526529) ClassIntellectual Merit: This research funds the participation of a US researcher from Columbia University in New York on an international, collaborative dredging cruise funded by the German government on the R/V Polarstern from April to June 2006. The cruise objective is to carry out a geophysical and petrological study in the South Atlantic Ocean in the vicinity of the Shona Ridge - Meteor Rise - Agulhas Ridge - Cape Rise and Discovery Seamount. A better understanding of this part of the seafloor is important because it represents major bathymetric anomalies in the South Atlantic, and through this cruise, they will be thoroughly sampled for the first time. Age progressive volcanic studies along similar features in the South Atlantic have been instrumental in constraining plate motions and global tectonic reconstructions. The dating of plume tracks, such as those represented by the Shona and Discovery hotspots is required to improve such models. On the cruise a comprehensive suite of samples will be collected. Their geochemical characterization will be funded through a different award.Broader impacts: The research supports a female researcher at the Lamont-Doherty Earth Observatory who is returning to the workforce. It also involves a German-American-South African-Dutch international collaboration.

AWARD (0526529) ClassIntellectual Merit：本研究资助来自纽约哥伦比亚大学的一名美国研究人员参加由德国政府资助的R/V Polarstern号国际合作疏浚巡航，时间为2006年4月至6月。这次航行的目的是在南大西洋的修纳山脊-流星隆起-阿古拉斯山脊-海角隆起和发现海山附近进行地球物理和岩石学研究。更好地了解这部分海底是很重要的，因为它代表了南大西洋主要的水深异常，通过这次巡航，它们将首次被彻底采样。沿着南大西洋类似特征的年龄递进火山研究，在限制板块运动和全球构造重建方面发挥了重要作用。为了改进这样的模型，需要对羽流轨迹进行测年，比如绍纳和发现号热点所代表的羽流轨迹。在巡航中，将收集一整套样品。它们的地球化学表征将通过另一个奖项获得资助。更广泛的影响：这项研究支持了拉蒙特-多尔蒂地球观测站的一名女性研究员，她正在重返工作岗位。它还涉及德国-美国-南非-荷兰的国际合作。