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http://dx.doi.org/10.9719/EEG.2020.53.5.553

Interpretion of Transition between Explosive and Effusive Eruptions from Microlite Textural Analyses in the Albong Lava Dome, Ulleung Island, Korea  

Hwang, Sang Koo (Department of Earth and Environmental Sciences, Andong National University)
Kim, Ki Beom (Department of Earth and Environmental Sciences, Andong National University)
Son, Young Woo (Korea Water Resources Corporation)
Hyeon, Hye Weon (Department of Earth and Environmental Sciences, Andong National University)
Publication Information
Economic and Environmental Geology / v.53, no.5, 2020 , pp. 553-564 More about this Journal
Abstract
Transition between explosive and effusive eruption in Ulleung Island is observed in the Nari Scoria Deposits and Albong Trachyandesite (lava dome) origined by dome-building eruption and may be related to factors such as magma influx, ascent rate and degassing. However, the interpretation of them has not been resolved yet because the interaction between these factors is not complex but also the resulting behaviour during eruption is unpredictable. This paper focuses on the explosive and effusive activity perceived during building the Albong lava dome in Nari caldera. Samples were collected along with time from the scoria deposits and lava dome, linked to eruption stage and style of activity. Textures of groundmass feldspar microlites from these samples are quantitatively analyzed, including measurements of areal number density, mean microlite size, crystal aspect ratio, groundmass crystallinity and crystal size. The microlite textures show that shallow pre- and syn-eruptive magmatic processes acted to govern the changing behaviour during the eruption. Transition between explosive and effusive eruption was driven by the dynamics of magma ascent in the conduit, with degassing and crystallisation acting via feedback mechanisms, resulting in a cycle of effusive and explosive eruption.
Keywords
Ulleung Island; Albong lava dome; number density; crystallinity; microlite textural analysis; crystallization;
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  • Reference
1 Hwang, S.K. and Jo I.H. (2014) Petrologic Evolution Processes of the Latest Volcanic Rocks in Ulleung Island, East Sea. J. Geol. Soc. Korea, v.50, p.343-363.   DOI
2 Hwang, S.K., Lee, S.-J. and Oh, K.S. (2020) The Latest Volcanism in Nari Caldera, Ulleung Island: Transition from Explosive to Effusive Eruption. J. Geol. Soc. Korea, v.56, p.539-553.   DOI
3 Kim, G.B., Cronin, S.J., Yoon, W.S. and Sohn, Y.K. (2014) Post 19 ka B.P. eruptive history of Ulleung Island, Korea, inferred from an intra-caldera pyroclastic sequence. Bull. Volcanol., v.76, no.802, DOI 10.1007/s00445-014-0802-1.
4 Melnik, O. and Sparks, R.S.J. (1999) Nonlinear dynamics of lava dome extrusion. Nature, v.402, p.37-41.   DOI
5 Melnik, O. and Sparks, R.S.J. (2005) Controls on conduit magma flow dynamics during lava dome building eruptions. J. Geophys. Res., v.110, B02209.
6 Melnik, O.E., Blundy, J.D., Rust, A.C. and Muir, D.D. (2011) Subvolcanic plumbing systems imaged through crystal size distributions. Geology, v.39, p.403-406.   DOI
7 Murphy, M.D., Sparks, R.S.J., Barclay, J., Carroll, M.R. and Brewer, T.S. (2000) Remobilization of andesite magma by intrusion of mafic magma at the Soufriere Hills volcano, Montserrat, West Indies. J. Petrol., v.41, p.21-42.   DOI
8 Newhall, C.G. and Melson, W.G. (1983) Explosive activity associated with the growth of volcanic domes. J. Volcanol. Geotherm. Res., v.17, p.111-131.   DOI
9 Ogburn, S.E., Loughlin, S.C. and Calder, E.S. (2015) The association of lava dome growth with major explosive activity (VEI${\geq}$4): DomeHaz, a global dataset. Bull. Volcanol., v.77, no.40. DOI: 1007/s0045-015-0919-x.
10 Pallister, J.S., Thornber, C.R., Cashman, K.V., Clynne, M.A., Lowers, H.A., Mandeville, C.W., Brownfield, I.K. and Meeker, G.P. (2008) Petrology of the 2004-2006 Mount St. Helens lava dome-implications for magmatic plumbing and eruption triggering. US Geol. Surv. Prof. Pap., v.1750, p.647-702.
11 Ridolfi, F., Puerini, M., Renzulli, A., Menna, M. and Toulkeridis, T. (2008) The magmatic feeding system of El Reventador volcano (Sub-Andean zone, Ecuador) constrained by texture, mineralogy and thermobarometry of the 2002 erupted products. J. Volcanol. Geotherm. Res., v.176, p.94-106.   DOI
12 Sparks, R.S.J. (1997) Causes and consequences of pressurisation in lava dome eruptions. Earth Planet. Sci. Lett., v.150, p.177-189.   DOI
13 Swanson, S.E., Naney, M.T., Westrich, H.R. and Eichelberger, J.C. (1989) Crystallization history of Obsidian Dome, Inyo Domes, California. Bull. Volcanol., v.51, p.161-176.   DOI
14 Wolf, K.J. and Eichelberger, J.C. (1997) Syneruptive mixing, degassing, and crystallization at Redoubt Volcano, eruption of December 1989 to May 1990. J. Volcanol. Geotherm. Res., v.75, p.19-37.   DOI
15 Wright, H.M.N., Cashman, K.V., Rosi, M. and Cioni, R. (2007) Breadcrust bombs as indicators of Vulcanian eruption dynamics at Guagua Pichincha volcano, Ecuador. Bull. Volcanol., v.69, p.281-300.   DOI
16 Couch, S., Sparks, R.S.J. and Carroll, M.R. (2003) The kinetics of degassing-induced crystallization at Soufrière Hills volcano, Montserrat. J. Petrol., v.44, p.1477-1502.   DOI
17 Cashman, K.V. (1988) Crystallization of Mount St. Helens 1980-1986 dacite: a quantitative textural approach. Bull. Volcanol., v.50, p.194-209.   DOI
18 Cashman, K.V. (1992) Groundmass crystallization of Mount St Helens dacite, 1980-1986 - a tool for interpreting shallow magmatic processes. Contrib. Mineral. Petrol., v.109, p.431-449.   DOI
19 Cashman, K.V. and McConnell, S.M. (2005) Multiple levels of magma storage during the 1980 summer eruptions of Mount St. Helens, WA. Bull. Volcanol., v.68, p.57-75.   DOI
20 Clarke, A.B., Stephens, S., Teasdale, R., Sparks, R.S.J. and Diller, K. (2007) Petrologic constraints on the decompression history of magma prior to Vulcanian explosions at the SoufrièreHills Volcano, Monterrat. J. Volcanol. Geotherm. Res., v.161, p.261-274.   DOI
21 Geschwind, C.-H. and Rutherford, M.J. (1995) Crystallization of microlites during magma ascent: the fluid mechanics of 1980-1986 eruptions at Mount St. Helens. Bull. Volcanol., v.57, p.356-370.   DOI
22 Hammer, J.E., Cashman, K.V., Hoblitt, R.P. and Newman, S. (1999) Degassing and microlite crystallization during pre-climactic events of the 1991 eruption of Mt. Pinatubo, Philippines. Bull. Volcanol., v.60, p.355-380.   DOI
23 Hess, K.-U. and Dingwell, D.B. (1996) Viscosities of hydrous leucogranite melts: a non-Arrhenian model. Am. Mineralog., v.81, p.1297-1300.
24 Hoblitt, R.P. and Harmon, R.S. (1993) Bimodal density distribution of cryptodome dacite from the 1980 eruption of Mount St. Helens, Washington. Bull. Volcanol., v.55, p.421-437.   DOI
25 Hwang, S.K., Hwang, J.H. and Kwon, C.W. (2012) Geological report of the Ulleungdo Sheet. KIGAM, 83p.