Elemental Tracers of Volcanic Emissions in Antarctic Aerosoland Snow Samples

因为它在地理上与世隔绝，而且远离主要的人为排放源。南极为研究大气气溶胶的自然来源提供了绝佳的地理位置。火山通常被认为是偏远大气气溶胶和山体中富集元素的主要自然来源。埃里巴斯火山是世界上最南端的活火山，是南极大气中火山排放的主要来源。来自山顶的烟羽气溶胶资料的初步检验。埃里巴斯火山和世界各地的其他火山表明，可以根据其羽流中的某些元素比例来区分不同组成的火山。这项研究将建立一个山的痕量元素特征。以确定该火山是否是南极大气中痕量元素和其他杂质的重要来源。通过比较Erebus烟羽样品和火山附近采集的雪样中的元素比例，可以确定雪样是否为气溶胶测量提供了良好的替代物。

Because of its geographical isolation and remoteness from the major sources of anthropogenic emissions. Antarctic provides an excellent location for studying natural sources of the atmospheric aerosols. Volcanoes are usually implicated as major natural sources for the enriched elements in remote atmospheric aerosol and Mt. Erebus, the world's southern-most active volcano, is the principal source of volcanic emissions to the Antarctic atmosphere. Preliminary examination of plume aerosol data from Mt. Erebus, and other volcanoes around the world suggests that volcanoes of different composition can be distinguished on the basis of certain elemental ratios in their plumes. this investigation will establish a trace elemental signature characteristic of Mt. Erebus in order to determine whether the volcano is an important source of trace elements and other impurities to the Antarctic atmosphere. Comparison of the elemental ratios in Erebus plume samples and snow samples collected near the volcano will allow determination of whether snow samples provide good surrogates for aerosol measurements.