Volcanic Ash
 
The evaluation of hazards from ashfall is a challenge, partly because the hazards to aircraft, and human health is closely linked to the amounts of ash that is finer than about 50 microns in diameter. Such fine ash is hazardous because it falls through the atmosphere slowly and can remain there after its dispersal. We do not yet understand what generates fine ash during eruptions. Fuego has significant proportions, which makes it different from other basaltic volcanoes with explosive eruptions. Deger, E., Der Ausbruch des Fuego in Guatemala am 21 Januar 1932 und die chemische Zusammensetzung seiner Auseurfmaterialien, Chem. Erde, 7:291-297, 1932. Genareau, K., G K Mulukutla, A A Proussevitch, A J Durant, W I Rose and D L Sahagian, 2013, The size range of bubbles that produce ash during explosive volcanic eruptions, Journal of Applied Volcanology 2:4 Murrow, P. J., W. I. Rose J., and S. Self. 1980. "Determination of the Total Grain Size Distribution in a Vulcanian Eruption Column, and its Implications to Stratospheric Aerosol Perturbation." Geophysical Research Letters 7 (11): 893-896. doi:http://dx.doi.org/10.1029/GL007i011p00893. Pawse, Archana, Suzanne Beske-Diehl, and S. A. Marshall. 1998. "Use of Magnetic Hysteresis Properties and Electron Spin Resonance Spectroscopy for the Identification of Volcanic Ash; a Preliminary Study." Geophysical Journal International 132 (3): 712-720. http://search.proquest.com/docview/52597972?accountid=28041 Rose, W. I., J., A. T. Anderson J., L. G. Woodruff, and S. B. Bonis. 1978. "The October 1974 Basaltic Tephra from Fuego Volcano; Description and History of the Magma Body." Journal of Volcanology and Geothermal Research 4 (1-2): 3-53. http://search.proquest.com/docview/52069425?accountid=28041 Rose, W. I., S. Self, P. J. Murrow, C. Bonadonna, A. J. Durant, and Gerald G. J. Ernst. 2008. "Nature and Significance of Small Volume Fall Deposits at Composite Volcanoes; Insights from the October 14, 1974 Fuego Eruption, Guatemala." Bulletin of Volcanology 70 (9): 1043-1067. doi:http://dx.doi.org/10.1007/s00445-007-0187-5. Rose, William I. and Adam J. Durant. 2009. "Fine Ash Content of Explosive Eruptions." Journal of Volcanology and Geothermal Research 186 (1-2): 32-39. doi:http://dx.doi.org/10.1016/j.jvolgeores.2009.01.010. http://search.proquest.com/docview/50085622?accountid=28041; Rust, A. C. and K. V. Cashman. 2011. "Permeability Controls on Expansion and Size Distributions of Pyroclasts." Journal of Geophysical Research.B.Solid Earth 116. doi:http://dx.doi.org/10.1029/2011JB008494 Termer, Franz. 1964. "Die Tatigkeit Der Vulkane Von Guatemala in Den Jahren 1960-1963." Petermanns Geographische Mitteilungen 108 (4): 261-268. http://search.proquest.com/docview/52948374?accountid=28041 http://www.appliedvolc.com/content/2/1/4http://dx.doi.org/10.1029/GL007i011p00893http://search.proquest.com/docview/52597972?accountid=28041http://search.proquest.com/docview/52597972?accountid=28041http://search.proquest.com/docview/52069425?accountid=28041http://search.proquest.com/docview/52069425?accountid=28041http://dx.doi.org/10.1007/s00445-007-0187-5http://dx.doi.org/10.1007/s00445-007-0187-5http://dx.doi.org/10.1016/j.jvolgeores.2009.01.010http://search.proquest.com/docview/50085622?accountid=28041http://search.proquest.com/docview/50085622?accountid=28041http://dx.doi.org/10.1029/2011JB008494http://search.proquest.com/docview/52948374?accountid=28041shapeimage_2_link_0shapeimage_2_link_1shapeimage_2_link_2shapeimage_2_link_3shapeimage_2_link_4shapeimage_2_link_5shapeimage_2_link_6shapeimage_2_link_7shapeimage_2_link_8shapeimage_2_link_9shapeimage_2_link_10shapeimage_2_link_11shapeimage_2_link_12

1947 eruption

Ken Wilson