Jökull - 01.01.2012, Síða 39
Deciphering eruption history and magmatic processes from tephra in Iceland
Óladóttir, B. A., G. Larsen and O. Sigmarsson 2011a.
Holocene volcanic activity at Grímsvötn, Bárdar-
bunga and Kverkfjöll subglacial centres beneath
Vatnajökull, Iceland. Bull. Volc. 73, 1187–1208,
doi:10.1007/s00445-011-0461-4.
Óladóttir, B. A., O. Sigmarsson, G. Larsen and J. L. Dev-
idal 2011b. Provenance of basaltic tephra from Vatna-
jökull subglacial volcanoes, Iceland, as determined by
major- and trace-element analyses. The Holocene 21,
1037–1048, doi:10.1177/0959683611400460.
Peacock, M. A. 1926. The petrology of Iceland, part 1. The
basic tuffs. Trans. Roy. Soc. Edinb. 55, 53–76.
Pearce, N. J. G., J. S. Denton, W. T. Perkins, J. A. Westgate
and B. V. Alloway 2007. Correlation and characteri-
sation of individual glass shards from tephra deposits
using trace element laser ablation ICP-MS analyses:
current status and future potential. J. Quaternary Sci.
22, 721–736.
Petersen, G. N., H. Björnsson, Th. Arason and S. von
Löwis 2012. Two weather radar time series of the alti-
tude of the volcanic plume during the May 2011 erup-
tion of Grímsvötn, Iceland. Earth Syst. Sci. Dat. 4,
121–127.
Putirka, K. D. 2008. Thermometers and barometers for
volcanic systems. Rev. Mineral. Geochem. 69, 61–120.
Pyle, D. M. 2000. Sizes of volcanic eruptions. In: Sig-
urdsson, H., B. F. Houghton, S. McNutt, H. Rymer
and J. Stix (eds.). Encyclopedia of Volcanoes 263–
269.Academic Press, San Diego.
Róbertsdóttir, B. 1992a. Þrjú forsöguleg gjóskulög frá
Heklu, HA, HB, og HC. Jarðfræðafélag Íslands, Vegg-
spjaldaráðstefna, ágrip 6–7.
Róbertsdóttir, B. 1992b. Forsöguleg gjóskulög frá Kötlu.
Jarðfræðafélag Íslands, Veggspjaldaráðstefna, ágrip
8–9.
Róbertsdóttir, B., J. Eiríksson and G. Larsen 2002a. A
westward trending two-coloured tephra layer at 2540
cal BP from the Hekla volcanic system, Iceland: Po-
tential marker horizon outside Iceland? The 25th
Nordic Geological Winter Meeting, abstracts 177,
Reykjavík, Iceland.
Róbertsdóttir, B., G. Larsen and J. Eiríksson 2002b. A new
detailed stratigraphical and geochemical record of 30
tephra layers from the Hekla volcanic system, Iceland,
2980–850 cal. BP. The 25th Nordic Geological Winter
Meeting, abstracts 178, Reykjavík, Iceland.
Shane, P. 2000. Tephrochronology: a New Zealand case
study. Earth Sci. Rev. 49, 223-259.
Sigmarsson, O. 2012. Mafic intrusions triggering erup-
tions in Iceland. Geophysical Res. Abstracts 14,
EGU2012-12722. EGU General Assembly, Vienna.
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., I. Vlastelic, R. Andreasen, I. Bindeman,
J. L. Devidal, S. Moune, J. K. Keiding, G. Larsen,
Á. Höskuldsson and Th. Thordarson 2011. Remobi-
lization of silicic intrusion by mafic magmas durint
the 2010 Eyjafjallajökull eruption. Solid Earth 2, 271–
281.
Sigmundsson, F., S. Hreinsdóttir, A. Hooper, Th. Árna-
dóttir, R. Pedersen, M. J. Roberts, N. Óskarsson, A.
Auriac, J. Decriem, P. Einarsson, H. Geirsson, M.
Hensch, B. ÓfeIgsson, E. Sturkell, H. Sveinbjörns-
son and K. Feigl 2010. Intrusion triggering of the
2010 Eyjafjallajökull eruption. Nature 426, 426–430,
doi:10.1038/nature09558.
Sigurgeirsson, M. A. 1992. Gjóskumyndanir á Reykjanesi
(Tephra deposits on the Reykjanes volcanic system).
M.Sc. Thesis, University of Iceland, 114 pp.
Sigurgeirsson, M. A. 1995. Yngra-Stampagosið á Reyk-
janesi (The Younger-Stampar eruption at Reykjanes,
SW-Iceland). Náttúrufræðingurinn 64, 211–230.
Sigurgeirsson, M. Á. and Á. E. Sveinbjörnsdóttir 1999.
Forsöguleg gjóskulög á suðvesturlandi. Jarðfræðafél-
ag Íslands, Vorráðstefna, 51–52.
Sigvaldason, G. E. 2002. Volcanic and tectonic processes
coinciding with glaciation and crustal rebound: an
early Holocene rhyolitic eruption in the Dyngjufjöll
volcanic centre and the formation of the Askja caldera,
north Iceland. Bull. Volc. 64, 192–205.
Sigvaldason, G. E., K. Annertz and M. Nilsson 1992. Ef-
fect of glacier loading/deloading on volcanism: Post-
glacial volcanic production rate of the Dyngjufjöll
area, central Iceland. Bull. Volc. 54, 385–392.
Sparks, R. S. J., H. Sigurdsson and L. Wilson 1977.
Magma mixing: a mechanism for triggering acid ex-
plosive eruptions. Nature 267, 315–318.
Steinthorsson, S. 1967. Tvær nýjar C14 aldursákvarðanir á
öskulögum úr Snæfellsjökli. Náttúrufræðingurinn 37,
236–238.
Steinthorsson, S. 1977. Tephra layers in a drill core from
the Vatnajökull Ice Cap. Jökull 27, 2-27.
Stroncik, N. A. and H. U. Schmincke 2002. Palagonite –
a review. Int. J. Earth Sci. 91, 680–697, doi:10.1007/-
s00531-001-0238-7.
Stuiver, M., P. J. Reimer, E. Bard, J. W. Beck, G. S. Burr,
K. A. Hughen, F. G. McCormac, J. V. D. Plicht and M.
JÖKULL No. 62, 2012 37