Náttúrufræðingurinn - 2016, Page 16

Náttúrufræðingurinn
88
Greenland ice core chronology for the last glacial termination. Journal of
Geophysical Research 111, D06102, doi:10.1029/2005JD006079.
24. Guðmundur E. Sigvaldason 2002. Volcanic and tectonic processes coin-
ciding with glaciation and crustal rebound: an early Holocene rhyolitic
eruption in the Dyngjufjöll volcanic centre and the formation of the
Askja caldera, north Iceland. Bulletin of Volcanology 64. 192–205.
25. Wohlfarth, B., Blaauw, M., Davies, S.M., Andersson, M., Wastegård, S.,
Hormes, A. & Possnert, G. 2006. Constraining the age of Lateglacial and
early Holocene pollen zones and tephra horizons in southern Sweden
with Bayesian probability methods. Journal of Quaternary Science 21.
321–334.
26. Ramsey, C.B., Albert, P.G., Blockley, S.P.E., Hardiman M., Housley, R.A.,
Lane, C.S., Lee,S. & Matthews, I.P. 2015. Improved age estimates for key
Late Quaternary European tephra horizons in the RESET lattice. Quater-
nary Science Reviews 118. 18–32.
27. Mangerud, J., Lie, S.E., Furnes, H., Kristiansen, I.L. & Lømo, L. 1984. A
Younger Dryas ash bed in western Norway and its possible correlations
with tephra in cores from the Norwegian Sea and the North Atlantic.
Quaternary Research 21. 85–104.
28. Hartley, M.E. 2012. Postglacial volcanisim and magmatism on the Askja
volcanic system, North Iceland. Doktorsritgerð við Edinborgarháskóla.
29. Hartley, M.E., Þorvaldur Þórðarson & de Joux, Alexandra 2016. Postgla-
cial eruptive history of the Askja region, North Iceland. Bulletin of Vol-
canology 78, 28. 18 bls. Doi:10.1007/s00445-016-1022-7.
30. Magnús Á.Sigurgeirsson 2013. Gjóskulög í Ódáðahrauni. Þróun
gjóskutímatals. ÍSOR 2013/034. Íslenskar orkurannsóknir, Reykjavík. 40
bls.
31. Lind, E.M. & Wastegård, S. 2011. Tephra horizons contemporary with
short early Holocene climate fluctations: New results from the Faroe
Islands. Quaternary International 246. 157–167.
32. Lilja, C., Lind, E.M., Morén, B. & Wastegård, S. 2013. A Lateglacial-early
Holocene tephrochronology for SW Sweden. Boreas 42. 544–554.
33. Pilcher, J., Bradley, R.S., Francus, P. & Anderson, L. 2005. A Holocene
tephra record from the Lofoten Islands, Arctic Norway. Boreas 34. 1–21.
34. Turney, C.S.M., van den Burg, K., Wastegård, S., Davies, S.M. & White-
house, N.J. 2006. North European last glacial-interglacial transition
(LGIT; 15-9 ka) tephrochronology: extended limits and new events. Jour-
nal of Quaternary Science 21. 335–345.
35. Lane, C.S., de Klerk, P. & Cullen, V.L. 2011. A tephrochronology for the
Lateglacial palynological record of the Endinger Bruch (Vorpommern,
north-east Germany). Journal of Quaternary Science 27. 141–149.
36. Lane, C.S., Blockley, S.P.E., Bronk Ramsey, C. & Lotter, A.F. 2011. Tephro-
chronology and absolute centennial scale synchronisation of European
and Greenland records for the last glacial to interglacial transition: A case
study of Soppensee and NGRIP. Quaternary International 246. 145–456.
37. Wulf, S., Dräger, N., Ott, F., Serb, J., Appelt, O., Esther Ruth Guðmunds-
dóttir, van den Bogaard, C., Słowiński, M. & Brauer, A. 2016. Holocene
tephrostratigraphy of varved sediment records from Lakes Tiefer See
(NE Germany) and Czechowskie (N Poland). Quaternary Science
Reviews 132. 1–14.
38. Esther Ruth Guðmundsdóttir, Jón Eiríksson & Guðrún Larsen 2011.
Identification of primary and reworked tephra in Late Glacial and Holo-
cene marine shelf sediments off North Iceland. Journal of Quaternary
Science 26. 589–602.
39. Esther Ruth Guðmundsdóttir, Guðrún Larsen, Björck, S., Ólafur Ingólfs-
son & Striberger, J. 2016. A new high-resolution Holocene tephra stratig-
raphy in eastern Iceland: Improving the Icelandic and North Atlantic
tephrochronology. Quaternary Science Reviews 150. 234–249.
40. Bergrún Arna Óladóttir, Guðrún Larsen & Olgeir Sigmarsson 2011.
Holocene volcanic activity at Grímsvötn, Bárdarbunga and Kverkfjöll
subglacial centres beneath Vatnajökull, Iceland. Bulletin of Volcanology
73. 1187–1208.
41. Sigurður Þórarinsson 1959. Some geological problems involved in the
hydro-electric development of the Jökulsá á Fjöllum, Iceland. Report to
the State Electricity Authority. Raforkumálastjóri, Reykjavík.
42. LandmælingarÍslands. Örnefnasjá. http://atlas.lmi.is/ornefnasja/
43. Sigurvin Elíasson 1974. Eldsumbrot í Jökulsárgljúfrum. Náttúru–
fræðingurinn 44. 52–70.
44. Theódór Gunnlaugsson frá Bjarmalandi 1983. Jökulsárgljúfur. Íslenzkur
undraheimur. 2. útg. (frumútg. 1975). Helgi Hallgrímsson og Oddur
Sigurðsson skrifa um lífríki og jarðsögu. Bókaforlag Odds Björnssonar,
Akureyri. 112 bls.
45. Pétur Jónsson 1950–60. Örnefnaskrá Reykjahlíðar í Mývatnssveit.
Handrit. Örnefnasafn Árnastofnunar.
46. Sigurður Þórarinsson 1960. Der Jökulsá-Canyon und Ásbyrgi. Peter-
manns Geographische Mitteilungen 104. 154–162.
47. Ásta Rut Hjartardóttir, Páll Einarsson & Haraldur Sigurðsson 2009. The
fissure swarm of the Askja volcanic system along the divergent plate
boundary of N Iceland. Bulletin of Volcanology 71. 961–975.
48. Halldór G. Pétursson 1997. Jarðfræðikönnun vegna sorpurðunar við
Kópasker. NÍ-97008. Náttúrufræðistofnun Íslands, Reykjavík. 41 bls.
49. Þorvaldur Þórðarson & Ármann Höskuldsson 2014. Classic Geology in
Europe 3. Iceland. 2. útg. (frumútg. 2002). Dunedin Academic Press,
Edinborg. 256 bls.
50. Sigrún Helgadóttir 2008. Friðlýst svæði á Íslandi. Jökulsárgljúfur.
Dettifoss, Ásbyrgi og allt þar á milli. Opna, Reykjavík. 224 bls.
51. Hjörleifur Guttormsson 2013. Norðausturland. Vopnafjörður, Strönd,
Langanes, Þistilfjörður, Slétta, Núpasveit, Öxarfjörður og Hólsfjöll.
Árbók 2013. Ferðafélag Íslands, Reykjavík. 392 bls.
52. Loftmyndir ehf. Kortasjá Ísland. https://www.map.is/base/
53. Davies, S.M., Wastegård, S. & Wohlfarth, B. 2003. Extending the limits of
the Borrobol Tephra to Scandinavia and detection of new early Holocene
tephras. Quaternary Research 59. 245–352.
54. Lane, C.S., Blockley, S.P.E., Mangerud, J., Smith, V.C., Lohne, Ø.S., Tom-
linson, E.L., Matthews, I.P. & Lotter, A.F. 2012. Was the 12.1 ka Icelandic
Vedde Ash one of a kind? Quaternary Science Reviews 33. 87–99.
55. Oddur Sigurðsson, Snorri Zóphóníasson, Laufey Hannesdóttir & Sveinn
Þorgrímsson 1975. Dettifossvirkjun. Jarðfræðiskýrsla. OS-ROD-7526.
Orkustofnun, Reykjavík. OS-ROD-7526. 33+31 bls.
56. Kristján Sæmundsson 1991. Jarðfræði Kröflukerfisins. Bls. 24–95 í:
Náttúra Mývatns (ritstj. Arnþór Garðarsson & Árni Einarsson). Hið
íslenska náttúrufræðifélag, Reykjavík.
Um höfundinn
Magnús Á. Sigurgeirsson (f. 1963) lauk B.Sc.-prófi í
jarðfærði frá Háskóla Íslands 1989 og M.Sc.-prófi frá
sama skóla 1992. Hann hefur starfað sem sérfræðingur
hjá Íslenskum orkurannsóknum (ÍSOR) síðan 2007.
Magnús hefur um langt árabil unnið við athuganir á
gjóskulögum í tengslum við fornleifarannsóknir.

Póst- og netfang höfundar/Author’s address
Magnús Á. Sigurgeirsson
Íslenskar orkurannsóknir / Iceland GeoSurvey
Grensásvegi 9
IS-108 Reykjavík
magnus.a.sigurgeirsson@isor.is