Degassing and Crystallization of Anorthoclase Phonolite Magma, Mt. Erebus, Antarctica

埃里伯斯山含有一种持续对流的斜长石 响岩熔岩湖 湖是一条管道的顶部， 在深处与一个主要的岩浆房相连 主要 本次调查的目的是继续监测 埃里伯斯山的火山活动，并获得一个下- 钙长石脱气结晶的稳定性 响岩岩浆 山埃里伯斯是火山喷发物的主要来源， 南极大气层。 本次调查将确定 发射率使用相关光谱仪估计 Mt的贡献。埃里伯斯到南极的大气层， 监测和了解熔岩湖的脱气行为。 挥发性酸性气体和微量金属将通过以下方式收集： 使用粒子对陨石坑边缘的羽流进行采样， 处理过的过滤包。 当与SO数据相结合时， 将对其他元素的排放率进行估计。

Mount Erebus contains a persistent convecting anorthoclase phonolite lava lake. The lake is the top of a conduit which is connected at depth to a major magma chamber. The major objectives of this investigation are to continue surveillance of the volcanic activity of Mount Erebus and to obtain an under- standing of the degassing and crystallization of the anorthoclase phonolite magma. Mt. Erebus is the main source of volcanic emissions to the Antarctic atmosphere. This investigation will determine SO emission rates using a correlation spectrometer to estimate the contribution of Mt. Erebus to the Antarctic atmosphere and to monitor and understand the degassing behavior of the lava lake. Volatile acid gases and trace metals will be collected by sampling the plume from the crater rim using the particle and treated filter pack. When combined with the SO data, quantitive estimates of the emission rates of other elements will be made.