Glacial - Interglacial Temperature and Salinity Changes in the Western Tropical Atlantic and Eastern Tropical Pacific

0117886 Lea/摘要PI将获得资金，继续开展与Mg/Ca古温度测量和南极有孔虫Delta 0-18相关的工作，以利用来自塞阿拉海隆、Cariaco海盆、加拉帕戈斯台地和Carnegie海岭的四个岩心，进一步了解太平洋和大西洋千年和轨道时间尺度上的气候变化。PI将通过测量这四个地点有孔虫的Mg/Ca和d18-0来反卷积热带西大西洋和东太平洋的温度和盐度古记录。PI还希望拟议研究的结果将使他能够解决与千年太平洋-大西洋盐度差异有关的问题。和轨道时间尺度。

0117886Lea/AbstractFunds are provided for the PI to continue his work on linked Mg/Ca paleothermometry and Delta 0-18 in planktic foraminifera to further the understanding of climate variability in the Pacific and Atlantic Oceans on millennial and orbital time scales using four cores from Ceara Rise, Cariaco Basin, Galapagos Platform and Carnegie Ridge. The PI will deconvolve the temperature and salinity paleorecords in the tropical western Atlantic and eastern Pacific by measuring the Mg/Ca and d18-0 in foraminifera from these four sites. The PI also hopes that the results of the proposed research will enable him to address issues related to the Pacific-Atlantic salinity differences on millennial. and orbital time scales.