Surface Chemistry and Reactivity of Metastable Iron SulfidesUnder Anoxic Marine Conditions

通过对各种现代和古代环境中硫化物矿物形成和丰度的控制因素以及与之相关的微量金属行为的研究，证实了许多微量金属在早期成岩作用中被广泛黄铁矿化。此外，研究还定义了金属与黄铁矿表面的相互作用以及金属与麦金酸盐的共沉淀。本研究的主要目的是：1)通过实验解决草莓状黄铁矿如何形成的难题；2)研究微量金属与草莓状黄铁矿的共沉淀。各种各样的技术将被用来解决这个问题，包括长期凝胶生长方法，以及“合成”和天然沉积物的使用。

Research on the factors controlling the formation and abundance of sulfide minerals, and associated trace metal behavior, in a variety of modern and ancient environments has established that many trace metals are extensively pyritized during early diagenesis. Additionally, studies have defined the interaction of metals with the surface of pyrite and the coprecipitation of metals with mackinawite. The primary objectives of this research are 1) to experimentally resolve the perplexing problem of how framboidal pyrite forms and 2) to study the coprecipitation of trace metals with this phase. A variety of techniques will be used to attack this problem that include long-term gel growth methods, and use of both "synthetic" and natural sediments.