Controls of Sorbed Aluminum of Quartz Reactivity: An Integrated Experimental Investigation of Dissolution Rates and Surface Reaction Processes

9405362多夫这项研究将阐明铝与二氧化硅表面相互作用的速率和机制。具体地说，它将量化石英在特化的含铝溶液中的溶解动力学，并将这一动力学信息与在水溶液中矿物表面发生的反应过程的现场观察联系起来。这项工作之所以可能，是因为开发了直接测量矿物溶液反应速率至300oC(MFR)的技术，以及直接观察矿物表面在水溶液中发生的反应过程的技术(SFM)。研究结果将在低温和热液环境下的BOTN矿物-水地球化学系统中得到应用。

9405362 Dove This research will elucidate the rates and mechanisms by which aluminum interacts with silica surfaces. Specifically it will quantify the kinetics of quartz dissolution in characterized aluminum-bearing solutions and relate this kinetic information to in situ observations of reaction processes occurring at the mineral surface in aqueous solutions. This work is possible due to the development of techniques that directly measure mineral-solution reaction rates to 300oC (MFR) and techniques that directly observe reaction processes occurring at the mineral surface in aqueous solutions (SFM). Results of the study will find application in botn mineral-water geochemical systems in both low temperature and hydrothermal environments.