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Delimiting Bárðarbunga and Askja volcanic systems with Sr- and Nd-isotope ratios
Marske, J. P., A. J. Pietruszka, D. Weis, M. Garcia and
M. Rhodes 2007. Rapid passage of a small-scale man-
tle heterogeneity through the melting regions of Ki-
lauea and Mauna Loa Volcanoes. Earth Planet. Sci.
Lett. 259, 34–50.
Óladóttir, B., O. Sigmarsson, G. Larsen and J.–L. Devi-
dal 2011. Provenance of basaltic tephra from Vatna-
jökull subglacial volcanoes, Iceland, as determined by
major- and trace-element analyses. The Holocene 21,
1037–1048.
Pin, C. and J. F. S. Zalduegui 1997. Sequential separation
of light rare-earth elements, thorium and uranium by
miniaturized extraction chromatography: application
to isotopic analyses of silicate rocks. Anal. Chim. Acta
339, 79–89.
Pin, C., D. Briot, C. Bassin and F. Poitrasson 1994.
Concomitant separation of strontium and samarium-
neodymium for isotopic analysis in silicate samples,
based on specific extraction chromatography. Anal.
Chim. Acta 298, 209–217.
Sæmundsson, K. 1978. Fissure swarms and central vol-
canoes of the neovolcanic zones of Iceland. Geol. J.
Special Issue 10, 415–432.
Sigbjarnarson, G. 1988. Krepputunga og Brúardalir. Lýs-
ing á korteiningum jarðfræðikorts. OS-88038/VOD-
06.
Sigbjarnarson, G. 1995. Norðan Vatnajökuls III. Eldstöð-
var og hraun frá nútíma. Náttúrufræðingurinn 65,
199–212.
Sigmarsson, O., M. Condomines and S. Fourcade 1992. A
detailed Th, Sr, and O isotope study of Hekla: differ-
entiation processes in an Icelandic volcano. Contrib.
Mineral. Petrol. 112, 20–34.
Sigmarsson, O., H. Karlsson and G. Larsen 2000. The
1996 and 1998 subglacial eruptions beneath Vatna-
jökull glacier in Iceland: contrasting geochemical
and geophysical inferences on magma migration. Bull.
Volc. 61, 468–476.
Sigmundsson, F. et al. 2015. Segmented lateral dyke
growth in a rifting event at Bárðarbunga volcanic sys-
tem, Iceland. Nature 517, 191–195.
Sigurdsson, H. and R. S. J. Sparks 1978. Rifting episode in
North Iceland in 1874–1875 and the eruption of Askja
and Sveinagjá, Iceland. Bull. Volcanol. 41, 149–167.
Sigurgeirsson, M. Á., Hjartarson, I. Kaldal, K. Sæ-
mundsson, S. G. Kristinsson and S. Víkingsson 2015.
Jarðfræðikort af Norðurgosbelti. Syðri hluti - Ódáða-
hraun 1:100 000. Ísor, Reykjavík (1. útgáfa).
Tanaka, T., et al. 2000. JNdi-1: a neodymium isotopic
reference in consistency with La Jolla neodymium.
Chem. Geol. 168, 279–281.
Thordarson, Th. and S. Self 1998. The Roza member,
Columbia river basalt group: a gigantic pahoehoe lava
flow field formed by endogeneous processes? J. Geo-
phys. Res. 103, 27 411–27445.
Thordarson, Th. and G. Larsen 2007. Volcanism in Ice-
land in historical time: Volcano types, eruption styles
and eruptive history. J. Geodyn. 43, 118–152.
Thordarson, Th., G. Larsen and M. Gudmundsson 2013.
Undir Vatnajökli. In: J. Sólnes, F. Sigmundsson
and B. Bessason (eds.): Náttúruvá á Íslandi – Eld-
gos og jarðskjálftar, 263–277. Viðlagatrygging Ís-
lands/Háskólaútgáfan, Reykjavík.
Vilmundardóttir, E. G., S. P. Snorrason and G. Larsen
2000. Berggrunnskort af móbergssvæðum suðvestan
Vatnajökuls, 1:50.000. Orkustofnun og Landsvirkjun,
Reykjavík.
Walker, G. P. L. 1974. The structure of eastern Iceland. In:
Kristjánsson, L. (ed.) Geodynamics of Iceland and the
North Atlantic Area. 177–188. D. Reidel, Dordrecht.
Zellmer, G. F., K. H. Rubin, K. Grönvold and Z. Jurado-
Chichay 2008. On the recent bimodal magmatic pro-
cesses and their rates in the Torfajökull-Veidivötn
area, Iceland. Earth Planet. Sci. Lett. 269, 388–398.
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