Jökull - 01.01.2015, Qupperneq 47

Grain characteristics of tephra from Katla and Hekla eruptions
REFERENCES
Björnsson, H., F. Pálsson and M. T. Guðmundsson 2000.
Surface and bedrock topography of the Mýrdalsjökull
ice cap, Iceland: The Katla caldera, eruption sites and
routes of jökulhlaups. Jökull 49, 29–46.
Bonadonna, C. and B. F. Houghton 2005. Total grain-size
distribution and volume of tephra-fall deposits. Bull.
Volcanol. 67, 441–456.
Büttner, R., P. Dellino, L. La Volpe, V. Lorenz
and B. Zimanowski 2002. Thermohydraulic explo-
sions in phreatomagmatic eruptions as evidenced
by the comparison between pyroclasts and prod-
ucts from Molten Fuel Coolant Interaction experi-
ments. J. Geophys. Res. 107, ECV 5-1–ECV 5-14,
doi:10.1029/2001JB000511.
Carey, S. and R. S. J. Sparks 1986. Quantitative models of
the fallouts and dispersal of the tephra from volcanic
eruption columns. Bull. Volcanol. 48, 109-125.
Cashman, K., B. Sturtevant, P. Papale and O. Navon
2000. Magmatic fragmentation. In: Sigurðsson, H.,
B. Houghton, S. R. Mcnutt, H. Rymer and J. Stix
(eds.), Encyclopedia of Volcanoes. San Diego: Aca-
demic press, 421–430.
Cioni, R., M. Pistolesi, A. Bertagnini, C. Bonadonna, A.
Hoskuldsson and B. Scateni 2014. Insights into the
dynamics and evolution of the 2010 Eyjafjallajökull
summit eruption (Iceland) provided by volcanic ash
textures. Earth. Planet. Sci. Lett. 394, 111–123.
Dellino, P. and L. La Volpe 1995. Fragmentation versus
transportation mechanisms in the pyroclastic sequence
of Monte Pilato-Rocche Rosse (Lipari, Italy). J. Volc.
Geotherm. Res. 64, 211–231.
Dellino, P. and L. La Volpe 1996. Image processing anal-
ysis in reconstructing fragmentation and transporta-
tion mechanisms of pyroclastic deposits. The case of
Monte Pilato-Rocche Rosse eruptions, Lipari (Aeolian
islands, Italy). J. Volcanol. Geotherm. Res. 71, 13–29.
Dellino, P. and G. Liotino 2002. The fractal and multifrac-
tal dimension of volcanic ash particles contour: a test
study on the utility and volcanological relevance. J.
Volc. Geotherm. Res. 113, 1–18.
Dellino, P., M. T. Gudmundsson, G. Larsen, D. Mele,
J. A. Stevenson, T. Thordarson and B. Zimanowski
2012. Ash from the Eyjafjallajökull eruption (Ice-
land): Fragmentation processes and aerodynamic be-
havior. J. Geophys. Res. 117, B00C04, 10 pp.
doi:10.1029/2011JB008726.
Dugmore, A. J., A. J. Newton, G. Larsen and G. T. Cook
2000. Tephrochronology, environmental change and
the Norse settlement of Iceland. Environm. Archaeol-
ogy 5, 21–34.
EASA Safety Information Bulletin SIB: 201017RS, March
11, 2013.
Eiríksson, J. and B. J. Wigum 1989. The morphometry
of selected tephra samples from Icelandic volcanoes.
Jökull 39, 57–74.
Eiríksson, J. 1993. Inngangur að setlagafræði. Reykjavík:
Ísland, 139 pp.
Eiríksson, J., M. Á. Sigurgeirsson and T. Hoelstad 1994.
Image analysis and morphometry of hydromagmatic
and magmatic tephra grains, Reykjanes volcanic sys-
tem, Iceland. Jökull 44, 41–55.
Francis, P. 2001. Volcanoes: A planetary perspective. Ox-
ford: Clarendon Press, 443 pp.
Francis, P. and C. Oppenheimer 2004. Volcanoes. New
York: Oxford University Press Inc., 521 pp.
Grönvold, K., G. Larsen, S. Thorarinsson and K. Sæ-
mundsson 1983. The Hekla Eruption 1980–1981. Bull.
Volcanol. 46, 349–363.
Guðmundsdóttir, E. R. 1998. Gjóska úr Kötlugosi 1755.
Ásýnd, kornastærð og kornalögun. B.Sc. Thesis, Uni-
versity of Iceland, Reykjavík, 64 pp.
Guðmundsson, M. T., et al. 2012. Ash generation and dis-
tribution from the April-May 2010 eruption of Eyja-
fjallajokull, Iceland. Scientific reports 2 (572), 12 pp.
Hall, V. A. and J. R. Pilcher 2002. Late-Quaternary Ice-
landic tephras in Ireland and Great Britain: detec-
tion, characterization and usefulness. The Holocene
12, 223–230.
Hitachi High-Technologies Corporation 2010. Instruction
manual for model TM3000 Tabletop Microscope. Hi-
tachinata (Japan).
Horwell, C. J. and P. J. Baxter 2006. The respiratory health
hazards of volcanic ash: a review for volcanic risk mit-
igation. Bull. Volcanol. 69, 1–24.
Houghton, B., C. Wilson, R. Smith and J. Gilbert
2000. Phreatoplinian eruptions. In: Sigurðsson, H.,
B. Houghton, S. R. Mcnutt, H. Rymer and J. Stix
(eds.), Encyclopedia of Volcanoes, Academic Press,
San Diego, 513–525.
Hreinsdóttir, S. et al. 2014. Volcanic plume height corre-
lated with magma-pressure change at Grímsvötn Vol-
cano, Iceland. Nature Geoscience 7, 214–218.
Höskuldsson, Á., N. Óskarsson, R. Pedersen, K. Grönvold,
K. Vogfjörð and R. Ólafsdóttir 2007. The millennium
eruption of Hekla in February 2000. Bull. Volcanol.
70, 169–182.
JÖKULL No. 65, 2015 47