The Geochemistry of Uranium in Marine Sediments and SedimentPore Waters

这是对黑海缺氧沉积物中铀的地球化学研究。这位研究人员正在研究海水中铀沉淀的机制。实验旨在确定有机络合和U+6还原为U+4在沉淀过程中的相对作用。黑海是一个现成的实验室，海水中的铀在扩散到沉积物中之前已经被还原到+4状态。这些样品是在黑海探险期间(1988年4-7月)采集的，在这个项目中，将对它们进行分析和解释。这项研究的最终目的是了解海水中铀的来源和汇。

This is a study of uranium geochemistry in the anoxic sediments of the Black Sea. The investigator is studying the mechanism by which uranium is precipitated from seawater. Experiments are designed to determine the relative role of organic complexation and the reduction of u+6 to U+4 in the precipitation process. The Black Sea serves as a ready made laboratory where the uranium in seawater has already been reduced to the +4 state before it diffuses into the sediments. The samples were collected during the Black Sea expedition (April-July, 1988) and in this project they will be analyzed and interpreted. The ultimate goal of the research is to understand the sources and the sinks of uranium in seawater.