Publication detail

The Fagradalsfjall and Sundhnúkur Fires of 2021-2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?

TROLL, V.R. DEEGAN, F.M. THORDARSON, T. TRYGGVASON, A. KRMÍČEK, L. MORELAND, W.M. LUND, B. BINDEMAN, I. HÖSKULDSSON, Á. DAY, J.M.D.

Original Title

The Fagradalsfjall and Sundhnúkur Fires of 2021-2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?

Type

journal article in Web of Science

Language

English

Original Abstract

The Reykjanes Peninsula (RP) hosts several volcanic lineaments that have been periodically active over the last 4000 years. Since 2021, following a ca. 800-year quiescence, eight eruptions have occurred on the RP, with more expected in the future. To better understand the origins of this renewed volcanism and help forecast future eruptions, we examine (i) if the ongoing volcanism is fed from a single or multiple magma storage zone(s) or from several smaller reservoirs and; (ii) where the zone(s) are located (i.e. mantle or lower or upper crustal depths). Using major and trace element geochemistry, oxygen isotopes, and seismic tomography we rule out a single, RP-scale, deep-seated magma storage zone. Instead we propose the presence of a ca. 10-km-wide region of crustal-level (9-12 km) magma accumulation beneath the Fagradalsfjall volcanic lineament that fed both the 2021-23 eruptions of the Fagradalsfjall Fires and the 2023-24 eruptions of the Sundhn & uacute;kur Fires.

Keywords

Iceland; magma storage and ascent; recent volcanism; Reykjanes peninsula

Authors

TROLL, V.R.; DEEGAN, F.M.; THORDARSON, T.; TRYGGVASON, A.; KRMÍČEK, L.; MORELAND, W.M.; LUND, B.; BINDEMAN, I.; HÖSKULDSSON, Á.; DAY, J.M.D.

Released

2. 7. 2024

Publisher

WILEY

Location

HOBOKEN

ISBN

0954-4879

Periodical

TERRA NOVA

Year of study

36

Number

6

State

United Kingdom of Great Britain and Northern Ireland

Pages from

447

Pages to

456

Pages count

10

URL

https://onlinelibrary.wiley.com/doi/10.1111/ter.12733

Full text in the Digital Library

http://hdl.handle.net/11012/249930

BibTex

@article{BUT194044,
  author="Valentin R. {Troll} and Frances M. {Deegan} and Thor {Thordarson} and Ari {Tryggvason} and Lukáš {Krmíček} and William M. {Moreland} and Björn {Lund} and Ilya N. {Bindeman} and Ármann {Höskuldsson} and James M. D. {Day}",
  title="The Fagradalsfjall and Sundhnúkur Fires of 2021-2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?",
  journal="TERRA NOVA",
  year="2024",
  volume="36",
  number="6",
  pages="447--456",
  doi="10.1111/ter.12733",
  issn="0954-4879",
  url="https://onlinelibrary.wiley.com/doi/10.1111/ter.12733"
}