Jökull - 01.01.2020, Blaðsíða 58

The 1845–46 and 1766–68 eruptions at Hekla volcano
Shaw, H. R. 1972. Viscosities of magmatic silicate liquids;
an empirical method of prediction. Am. J. Sci. 272,
870–893, https://doi.org/10.2475/ajs.272.9.870.
Sigmarsson, O., M. Condomines and S. Fourcade 1992.
A detailed Th, Sr and O isotope study of Hekla:
differentiation processes in an Icelandic Volcano.
Contrib. Mineral. Petrol.112, 20–34, https://doi.org/-
10.1007/BF00310953.
Soosalu, H., P. Einarsson and S. Jakobsdóttir 2003. Vol-
canic tremor related to the 1991 eruption of the
Hekla volcano, Iceland. Bull. Volcanol. 65, 562–577,
https://doi.org/10.1007/s00445-003-0285-y.
Soule, S. A., K. V. Cashman and J. P. Kauahikaua 2004.
Examining flow emplacement through the surface
morphology of three rapidly emplaced, solidified lava
flows, Kilauea Volcano, Hawaii. Bull. Volcanol. 66, 1–
14, https://doi.org/10.1007/s00445-003-0291-0.
Stevens, N. F., G. Wadge and J. B. Murray 1999. Lava
flow volume and morphology from digitised contour
maps: a case study at Mount Etna, Sicily. Geomor-
phology 28, 251–261, https://doi.org/10.1016/S0169-
555X(98)00115-9.
Sturkell, E., K. Ágústsson, A. T. Linde, S. I. Sacks, P.
Einarsson, F. Sigmundsson, H. Geirsson, R. Peder-
sen, P. C. LaFemina and H. Ólafsson 2013. New in-
sights into volcanic activity from strain and other de-
formation data for the Hekla 2000 eruption. J. Volc.
Geoth. Res. 256, 78–86, https://doi.org/10.1016/-
j.jvolgeores.2013.02.001.
Sverrisdottir, G. 2007. Hybrid magma generation preced-
ing Plinian silicic eruptions at Hekla, Iceland: evi-
dence from mineralogy and chemistry of two zoned
deposits. Geol. Mag. 144, 643–659, https://doi.org/-
10.1017/S0016756807003470.
Takagi, D. and H. E. Huppert 2010. Initial advance
of long lava flows in open channels. J. Volc.
Geoth. Res. 195, 121–126. https://doi.org/10.1016/-
j.jvolgeores.2010.06.011
Thorarinsson, S. and G. E. Sigvaldason 1972. The Hekla
Eruption of 1970. Bull. Volcanol. 36, 269–288,
https://doi.org/10.1007/bf02596870.
Thórarinsson, S. 1976. The eruption of Hekla 1947–1948
IV: Course of events. Soc. Sci. Islandica, Reykjavík,
1–44.
Thórarinsson, S. 1967. The eruption of Hekla 1947–
48 I: The eruptions of Hekla in historical times.
A tephrochronological study. Soc. Sci. Islandica,
Reykjavík, 1–171.
Thordarson, T. and G. Larsen 2007. Volcanism in Ice-
land in historical time: Volcano types, eruption styles
and eruptive history. J. Geodynamics 43, 118–152,
https://doi.org/10.1016/j.jog.2006.09.005.
Thordarson, T. and S. Self 1998. The Roza Member,
Columbia River Basalt Group: A gigantic pahoe-
hoe lava flow field formed by endogenous processes?
J. Geophys. Res. Solid Earth 103, 27411–27445,
https://doi.org/10.1029/98JB01355.
Thordarson, Th. 2000. Physical volcanology of lava flows
on Surtsey, Iceland: A preliminary report. Surtsey Re-
search, 11, 109–126.
Thordarson, Th. and Á. Höskuldsson 2008. Postglacial
volcanism in Iceland. Jökull 58, 197–228.
Thy, P., C. E. Lesher, T. F. D. Nielsen and C. K.
Brooks 2006. Experimental constraints on the Skaer-
gaard liquid line of descent. Lithos 92, 154–180,
https://doi.org/10.1016/j.lithos.2006.03.031.
Tuller-Ross, B., P. S. Savage, H. Chen and K. Wang
2019. Potassium isotope fractionation during mag-
matic differentiation of basalt to rhyolite. Chemical
Geology (Elsevier BV) 525, 37–45, https://doi.org/-
10.1016/j.chemgeo.2019.07.017.
Vogel, D. H. 1921. Temperaturabhängigkeitsgesetz der
Viskosität von Flüssigkeiten. Phys. Z. 645–646.
Wadge, G. 1978. Effusion rate and the shape of
aa lava flow-fields on Mount Etna. Geology 6,
503–506, https://doi.org/10.1130/0091-7613(1978)-
6<503:eratso>2.0.co;2.
Wadge, G., G. P. L. Walker and J. E. Guest 1975. The
output of the Etna volcano. Nature 255, 385–387,
https://doi.org/10.1038/255385a0.
Walker, G. P. L. 1973. Lengths of Lava Flows. Phil.
Trans. Royal Soc. A: Mathematical, Physical and
Engineering Sciences 274, 107–118, https://doi.org/-
10.1098/rsta.1973.0030.
Walker, G.P.L. 1991. Structure and origin by injec-
tion of lava under surface crust, of tumuli, "lava
rises", "lava-rise pits", and "lava-inflation clefts" in
Hawaii. Bull. Volcanol. 53, 546–558, https://doi.org/-
10.1007/BF00298155.
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