Collaborative Investigation of Beata Ridge (Caribbean Plate): Stratigraphy of an Oceanic Large Igneous Province

9530087俄勒冈州立大学的邓肯·罗伯特·邓肯将与法国研究人员一起参加一项计划中的研究潜水器(R/V Nautile)探险，以采样和分析加勒比海贝塔断裂带暴露的深部地壳样本。邓肯的工作将强调使用他的实验室擅长的Argon-40/Argon-39技术对山脊样品进行精确测年；他还将分析样品中的稀土元素。邓肯研究的目的是测试一个模型，该模型主要基于在加勒比海周围陆地上收集的岩石样本，加勒比海下面的大部分海底是大约8800万年前由与加拉帕戈斯地幔羽流有关的大规模火山喷发迅速形成的。除了这里建议对潜水器收集的样本进行的具体研究外，该项目还将帮助确定海洋钻探计划拟议的深海钻探的准确地点，该计划是由美国国家科学基金会领导的一项国际合作研究工作，使用的是研究钻探船JOIDES Resolve。***

9530087 Duncan Robert Duncan of Oregon State University is supported to participate in a planned research submersible (R/V Nautile) expedition with French researchers to sample and analyze samples of the deep crust exposed in the Beata Escarpment in the Caribbean Sea. Duncan's work will emphasize the precise dating of samples from the ridge using the Argon-40/Argon-39 technique in which his lab specializes; he will also analyze samples for rare earth elements. The objective of Duncan's research is to test a model based primarily on samples rocks collected on land surrounding the Caribbean that much of the seafloor underlying the Caribbean was formed very rapidly about 88 million years ago by a large volcanic outpouring related to the Galapagos mantle plume. In addition to the specific studies proposed here of samples to be collected by submersible, the project will assist in identifying precise sites for proposed deep ocean drilling by the Ocean Drilling Program, an international collaborative research effort led by NSF using the research drilling vessel JOIDES Resolution. ***