Fumarole Composition of Mount Mageik and Trident Volcano, July 2013

Abstract: Fumarole and steam condensate samples were collected from Mount Mageik and Trident volcano, Katmai Volcanic Cluster, Alaska in July 2013. Specifically, samples were collected from the northeast wall of the summit crater of Mount Mageik on 12 July 2013 (local time), and within the southeast flank fumarole field of Trident I on 16 July 2013. At each site, the following samples were collected: (1) total gas composition using a modified version of the Giggenbach method where samples were collected in 50 mL evacuated bottles containing 20 mL of a 0.15 M Cd(OH)2 and 4 M NaOH solution, (2) dry gas, and (3) steam condensate. The integrated analyses of these three samples from two locations at each of the two volcanoes are presented here.

Other Description: T. Lopez, F. Tassi, A. Aiuppa, B. Galle, A.L. Rizzo, J. Fiebig, F. Capecchiacci, G. Giudice, S. Caliro, G. Tamburello, Geochemical constraints on volatile sources and subsurface conditions at Mount Martin, Mount Mageik, and Trident Volcanoes, Katmai Volcanic Cluster, Alaska, Journal of Volcanology and Geothermal Research, Available online 9 September 2017, ISSN 0377-0273, https://doi.org/10.1016/j.jvolgeores.2017.09.001.

摘要：2013年7月，研究团队于美国阿拉斯加卡特迈火山群（Katmai Volcanic Cluster）的马吉克火山（Mount Mageik）与三叉戟火山（Trident Volcano）采集喷气孔与蒸汽冷凝物样品。具体采样细节如下：2013年7月12日（当地时间），于马吉克火山主峰火山口东北壁采集样品；2013年7月16日，于三叉戟火山I号火山体东南侧翼喷气孔区域采集样品。
在每个采样点位均采集三类样品：(1) 总气体组分：采用改良型吉根巴赫法（Giggenbach method），将样品采集于装有20 mL 0.15 M氢氧化镉（Cd(OH)₂）与4 M氢氧化钠（NaOH）混合溶液的50 mL真空瓶中；(2) 干燥气体；(3) 蒸汽冷凝物。
本文呈现了两座火山各两个采样点位的三类样品的整合分析结果。

其他说明：T. Lopez、F. Tassi、A. Aiuppa、B. Galle、A.L. Rizzo、J. Fiebig、F. Capecchiacci、G. Giudice、S. Caliro、G. Tamburello，《阿拉斯加卡特迈火山群马丁山、马吉克火山与三叉戟火山的挥发组分来源及地下环境的地球化学约束》，《火山学与地热研究期刊（Journal of Volcanology and Geothermal Research）》，2017年9月9日在线发布，ISSN 0377-0273，https://doi.org/10.1016/j.jvolgeores.2017.09.001。