An Isotopic Study of Lavas from the Louisville Seamount Chain

路易斯维尔海山链熔岩的同位素研究

• 批准号: 0452127
• 负责人: John Mahoney
• 金额: $ 6.98万
• 依托单位: University of Hawaii
• 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: 2005-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0452127&HistoricalAwards=false
• 关键词: Isotopic; Study; Lavas; Louisville; Seamount

Using volcanic rocks to be dredged during an already-funded NSF-ODP program to survey the Louisville Seamount Chain (LSC), the researcher will conduct Nd, Pb, and Sr analyses of 25 samples. By combining the results with major element data being obtained by the already-funded program, this study will constrain the mantle source for the rocks, assess hypotheses that link the evolution of the LSC to the Ontong Java Plateau, and contribute to the pending IODP drilling proposal for this area. Broader impacts of the study include enhancing international collaboration, training of a graduate student, and serving solid Earth objectives of the IODP science plan.

研究人员将使用在已经资助的NSF-ODP项目中疏浚的火山岩来调查路易斯维尔海山链（LSC），并将对25个样本进行Nd，Pb和Sr分析。 通过将结果与已资助项目获得的主要元素数据相结合，本研究将限制岩石的地幔来源，评估将LSC的演变与Ontong Java高原联系起来的假设，并为该地区即将进行的IODP钻探提案做出贡献。 该研究的更广泛影响包括加强国际合作，培训研究生，以及为IODP科学计划的固体地球目标服务。