Near-surface magma flow instability drives cyclic lava fountaining at Fagradalsfjall, Iceland

Autor: Samuel Scott, Melissa Pfeffer, Clive Oppenheimer, Enikö Bali, Oliver D. Lamb, Talfan Barnie, Andrew W. Woods, Rikey Kjartansdóttir, Andri Stefánsson

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)

Abstract Lava fountains are a common manifestation of basaltic volcanism. While magma degassing plays a clear key role in their generation, the controls on their duration and intermittency are only partially understood, not least due to the challenge

Externí odkaz: https://doaj.org/article/74c9881eb4004541bd8f638524abc2e5

Rapid shifting of a deep magmatic source at Fagradalsfjall volcano, Iceland

Autor: Sæmundur A. Halldórsson, Edward W. Marshall, Alberto Caracciolo, Simon Matthews, Enikő Bali, Maja B. Rasmussen, Eemu Ranta, Jóhann Gunnarsson Robin, Guðmundur H. Guðfinnsson, Olgeir Sigmarsson, John Maclennan, Matthew G. Jackson, Martin J. Whitehouse, Heejin Jeon, Quinten H. A. van der Meer, Geoffrey K. Mibei, Maarit H. Kalliokoski, Maria M. Repczynska, Rebekka Hlín Rúnarsdóttir, Gylfi Sigurðsson, Melissa Anne Pfeffer, Samuel W. Scott, Ríkey Kjartansdóttir, Barbara I. Kleine, Clive Oppenheimer, Alessandro Aiuppa, Evgenia Ilyinskaya, Marcello Bitetto, Gaetano Giudice, Andri Stefánsson

Publikováno v: Halldorsson, S A, Marshall, E W, Caracciolo, A, Matthews, S, Bali, E, Rasmussen, M B, Ranta, E, Robin, J G, Guðfinnsson, G H, Sigmarsson, O, Maclennan, J, Jackson, M G, Whitehouse, M J, Jeon, H, van der Meer, Q H A, Mibei, G K, Kalliokoski, M H, Repczynska, M M, Rúnarsdóttir, R H, Sigurðsson, G, Pfeffer, M A, Scott, S W, Kjartansdóttir, R, Kleine, B, Oppenheimer, C, Aiuppa, A, Ilyinskaya, E, Bitetto, M, Giudice, G & Stefansson, A 2022, ' Rapid shifting of a deep magmatic source at Fagradalsfjall volcano, Iceland ', Nature, vol. 609, pp. 529–534 . https://doi.org/10.1038/s41586-022-04981-x
Nature
Nature, 2022, 609, pp.529-534. ⟨10.1038/s41586-022-04981-x⟩

Recent Icelandic rifting events have illuminated the roles of centralized crustal magma reservoirs and lateral magma transport1–4, important characteristics of mid-ocean ridge magmatism1,5. A consequence of such shallow crustal processing of magmas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a08a18f7029b57fa876204bd6ba6eac
https://curis.ku.dk/ws/files/320878782/Rapid_shifting_of_a_deep_magmatic_source_at_Fagradalsfjall_volcano.pdf

The Surtsey volcano geothermal system: An analogue for seawater-oceanic crust interaction with implications for the elemental budget of the oceanic crust

Autor: Tobias B. Weisenberger, Andri Stefánsson, Ríkey Kjartansdóttir, Magnús T. Gudmundsson, Simon Prause, Marie D. Jackson, Árný E. Sveinbjörnsdóttir, Hannah I. Reynolds, Barbara Irene Kleine

Publikováno v: Chemical Geology. 550:119702

Pre-print (óritrýnt handrit)
Surtsey is a young volcanic island in the offshore extension of Iceland's southeast rift zone that grew from the seafloor during explosive and effusive eruptions in 1963–1967. In 1979, a cored borehole (SE-1) was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59e9c45de0f00561469bbb2fd86281ad
https://doi.org/10.1016/j.chemgeo.2020.119702

Mantle CO2 degassing through the Icelandic crust:Evidence from carbon isotopes in groundwater

Autor: Stefán Arnórsson, Jan Heinemeier, Hrefna Kristmannsdóttir, Árný E. Sveinbjörnsdóttir, Ríkey Kjartansdóttir, Andri Stefánsson

Publikováno v: Stefansson, A, Sveinbjornsdottir, A E, Heinemeier, J, Arnorsson, S, Kjartansdottir, R & Kristmannsdottir, H 2016, ' Mantle CO 2 degassing through the Icelandic crust : Evidence from carbon isotopes in groundwater ', Geochimica et Cosmochimica Acta, vol. 191, pp. 300-319 . https://doi.org/10.1016/j.gca.2016.06.038

Carbon isotopes of groundwater in Iceland were studied in order to determine the source and reactions of carbon at divergent plate boundaries not associated with active volcanic systems. All the waters were of meteoric origin, with temperatures of 1-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a28bf23573b93d7c89a839ab2b0c873f
https://pure.au.dk/portal/da/publications/mantle-co2-degassing-through-the-icelandic-crust(bcbf268e-617e-4674-b3e2-512c6b33f4e0).html