Destruction and regrowth of lithospheric mantle beneath large igneous provinces

SN Stephenson, PW Ball, FD Richards - Science Advances, 2023 - science.org
Large igneous provinces (LIPs) are formed by enormous (ie, frequently> 106 km3) but short-
lived magmatic events that have profound effects upon global geodynamic, tectonic, and …

Mafic tiers and transient mushes: evidence from Iceland

J Maclennan - … Transactions of the Royal Society A, 2019 - royalsocietypublishing.org
It is well established that magmatism is trans-crustal, with melt storage and processing
occurring over a range of depths. Development of this conceptual model was based on …

Depth of magma storage under Iceland controlled by magma fluxes

RJM Baxter, J Maclennan, DA Neave… - Geochemistry …, 2023 - Wiley Online Library
The compositions of volcanic materials are sensitive to physical conditions in the underlying
magmatic system. When basaltic melts are saturated in olivine‐plagioclase‐augite prior to …

Olivine chemistry reveals compositional source heterogeneities within a tilted mantle plume beneath Iceland

MB Rasmussen, SA Halldórsson, SA Gibson… - Earth and Planetary …, 2020 - Elsevier
Abstract High-Fo olivine (Fo= Mg/(Mg+ Fe) mol%) is an ideal proxy for establishing the
compositions of primary melts and their mantle sources. This has been exploited in …

A dynamic mid-crustal magma domain revealed by the 2023 to 2024 Sundhnúksgígar eruptions in Iceland

SW Matthews, A Caracciolo, E Bali, SA Halldórsson… - Science, 2024 - science.org
Mid-crustal magma domains are the source of many basaltic eruptions. Lavas from
individual eruptions are often chemically homogeneous, suggesting that they derive from …

[HTML][HTML] Deep magma degassing and volatile fluxes through volcanic hydrothermal systems: Insights from the Askja and Kverkfjöll volcanoes, Iceland

E Ranta, SA Halldórsson, PH Barry, S Ono… - Journal of volcanology …, 2023 - Elsevier
Mantle volatiles are transported to Earth's crust and surface by basaltic volcanism. During
subaerial eruptions, vast amounts of carbon, sulfur and halogens can be released to the …

Intense seismicity during the 2014–2015 Bárðarbunga‐Holuhraun rifting event, Iceland, reveals the nature of dike‐induced earthquakes and caldera collapse …

T Ágústsdóttir, T Winder, J Woods… - Journal of …, 2019 - Wiley Online Library
Over 2 weeks in August 2014, magma propagated 48 km laterally from Bárðarbunga
volcano before erupting at Holuhraun for 6 months, accompanied by collapse of the caldera …

Oxygen isotope evidence for progressively assimilating trans-crustal magma plumbing systems in Iceland

A Caracciolo, SA Halldórsson, E Bali… - …, 2022 - pubs.geoscienceworld.org
The oxygen isotope composition of mantle-derived melts can place important constraints on
how magmas are processed as they traverse the crust. Assimilation of crustal material is a …

Melt movement through the Icelandic crust

RS White, M Edmonds, J Maclennan… - … of the Royal …, 2019 - royalsocietypublishing.org
We use both seismology and geobarometry to investigate the movement of melt through the
volcanic crust of Iceland. We have captured melt in the act of moving within or through a …

A crustal LVZ in Iceland revealed by ambient noise multimodal surface wave tomography

S Zhang, G Zhang, X Feng, Z Li, L Pan… - Frontiers in Earth …, 2022 - frontiersin.org
The crustal low-velocity zone (LVZ), an important anomaly found in some regional structures
of Iceland, is still absent in the Icelandic average velocity structure due to limitations of …