Jökull - 01.01.2017, Page 1

JÖKULL
THE ICELANDIC JOURNAL OF EARTH SCIENCES
JÖKLARANNSÓKNAFÉLAG ÍSLANDS
JARÐFRÆÐAFÉLAG ÍSLANDS
67. ÁR REYKJAVÍK 2017
Jökull, N
o. 67 2017 The Icelandic Journal of Earth Sciences
JÖKULL, No. 67, 2017
Contents – Efni
Reviewed research articles
Zeinab Jeddi, Giulia Sgattoni, Ólafur Guðmundsson, Ari Tryggvason and Björn Lund
A peculiar cluster of microearthquakes on the eastern flank of Katla volcano, southern Iceland . . . . . . . . . . . . . . . . 1
Sigríður Inga Sigvaldadóttir, Sæmundur Ari Halldórsson and Guðmundur Heiðar Guðfinnsson
Geochemistry and petrology of Holocene lavas in the Bárðardalur region, N-Iceland.
Part I: Geochemical constraints on source provenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Leó Kristjánsson and Geirfinnur Jónsson
A total-field magnetic anomaly map of the Reykjanes peninsula, Southwest Iceland . . . . . . . . . . . . . . . . . . . . . . . . . 43
Society and data reports
Finnur Pálsson; Myndir úr ferðum félagsins 2017 (2017 glacier expeditions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Snævarr Guðmundsson and Helgi Björnsson
Jöklabreytingar skoðaðar út frá gömlum ljósmyndum (evaluating glacier retreat from old photographs) . . . . . . . 51
Bergur Einarsson
Jöklabreytingar (glacier variations) 1930–1970, 1970–1995, 1995–2015 og 2015–2016 . . . . . . . . . . . . . . . . . . . . . 65
Magnús Tumi Guðmundsson; Minning Árni Kjartansson (obituary) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Þorsteinn Sæmundsson; Morsárjökull . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Halldór Ólafsson; Upphaf Kröfluelda 1975 (the 1975 Krafla eruption) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Halldór Ólafsson; Eldgos sunnan Gjástykkisbungu í mars 1980 (the 1980 eruption) . . . . . . . . . . . . . . . . . . . . . . . . . 77
Jarðfræðafélag Íslands; Skýrsla stjórnar fyrir starfsárið (annual report) 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Jöklarannsóknafélag Íslands; Skýrsla formanns á aðalfundi (annual report) 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Finnur Pálsson; Vorferð Jöklarannsóknafélags Íslands (spring expedition) 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Jöklarannsóknafélag Íslands; Reikningar (accounts) 2016. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
ISSN 0449-0576