Cation Diffusion and Compositional Zoning in Garnet Clinopyroxene

9418941甘古利，该奖项支持的研究代表了一项继续努力，以确定铁镁硅酸盐的能量性质，并利用这些数据来限制陆地岩石和陨石的热史和动力学历史。这项研究将(1)将前人关于(Fe，Mg，Ca，Mn)石榴石中多组分扩散的研究工作扩展到更低的温度和未知的组成空间，(2)研究H2O对二价阳离子在石榴石中扩散的影响，(3)确定Sm3+在石榴石中的示踪扩散，(4)继续进行Fe2+-Mg在单斜辉石中互扩散的协同实验和模拟工作。

9418941 Ganguly The research supported by this award represents a continuing effort to determine the energetic properties of ferromagnesian silicates and to use these data to constrain the thermal and dynamic histories of terrestrial rocks and meteorites. The research will (1) extend previous work on multicomponent diffusion in (Fe, Mg, Ca, Mn) garnet to lower temperatures and into previously unexplored compositional space, (2) investigate the edfect of H2O on the diffusion of divalent cations in garnet, (3) determine Sm3+ tracer diffusion in garnet, and (4) continue collaborative experimental and modelling work on Fe2+-Mg interdiffusion in clinopyroxene.