Trace Metal Associations in Oceanic Particulate Matter

对痕量金属颗粒缔合的一种新的检查是 根据支持以下假设的证据提出， 溶解的钡得到它的“营养”分布在 海洋，而不是通过浮游植物的主动吸收， 光合作用，但通过重晶石沉淀在颗粒 微环境含有腐烂的有机物， 硅质浮游生物的残骸 硅藻培养（生长和 死亡）的实验，旨在测试假设， 降水主要发生在颗粒物中， 环境将成为这项研究的基础。 这项研究将有助于建立一个机制框架 需要对现有的痕量金属剖面进行解释， 提供未来微粒和溶解的其他依据 世界海洋中的痕量金属测量。

A new examination of trace metal-particle associations is proposed based on evidence supporting the hypothesis that dissolved barium gets its "nutrient like" distribution in the ocean, not through active uptake by phytoplankton during photosynthesis, but through barite precipitation in particulate microenvironment containing decaying organic matter and the remains of siliceous plankton. Diatom culturing (growth and death) experiments designed to test the hypothesis that barite precipitation dominantly occurs in particulate matter micro- environments will form the basis for this study. This study will contribute to the mechanistic framework needed for interpretation of existing trace metal profiles and provide additional rationale for future particulate and dissolved trace metal measurements in the worlds's oceans.