Collaborative Research: Benthic Fluxes and Paleoproxies: Establishing Bottom Boundary Relationships for Ba, U, Mo and Ge

PI将测量追溯到1997年的Jahnke现有海底通量室样本中的微量元素（Ba，U，Mo，Mn和Ge）。其目标是建立海底边界条件，控制用于解释过去海洋化学、环流、生产力、碳通量和氧化还原条件的几种示踪剂的再生和埋藏。现有的地点包括各种各样的海洋环境。将使用低精度ICP-MS方法筛选样品，并使用高精度ID-ICP-MS分析选定样品的子集。还将筛选和分析选定的孔隙水样品。这些数据将用于了解控制沉积物-水界面转移的过程以及与其他参数的定量关系。

The PIs will measure trace elements (Ba, U, Mo, Mn, and Ge) in Jahnke's existing benthic flux chamber samples dating back to 1997. The goal is to establish bottom boundary conditions governing the regeneration and burial of several tracers used to interpret past ocean chemistry, circulation, productivity, carbon flux and redox conditions. Existing sites include a wide variety of oceanic environments. The samples will be screened with low-precision ICP-MS methods and subsets of selected samples will be analyzed with high-precision ID-ICP-MS. Selected pore water samples will also be screened and analyzed. These data willbe used to understand processes controlling transfer across the sediment-water interface and quantitative relationships with other parameters.