Geochemical and Isotopic Study of Central American Volcanoes

这是对中美洲火山熔岩岩石成因长期研究的延续。pi已经能够将化学与板的厚度和倾角联系起来。他们现在将尝试：1)描述他们假设的四种多组分混合源的特征，2)分析板块衍生流体中的Cs， 3)试图通过建模确定地幔的区域变化，4)绘制板块成分在扩散、前后火山活动区域的分布图。

This is for continuation of a long-term study of the petrogenesis of lavas from Central American volcanoes. The PIs have been able to correlate chemistry with thickness and dip of the slab. They will now try to: 1) characterize their postulated four sources for multi component mixing, 2) analyze for Cs in the slab-derived fluid, 3) attempt to determine regional variations in the mantle through modelling, and 4) map the distribution of the slab component in regions of diffuse, behind-the-front volcanism.