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 …

Insights into magma storage beneath a frequently erupting arc volcano (Villarrica, Chile) from unsupervised machine learning analysis of mineral compositions

FO Boschetty, DJ Ferguson, JA Cortés… - Geochemistry …, 2022 - Wiley Online Library
A key method to investigate magma dynamics is the analysis of the crystal cargoes carried
by erupted magmas. These cargoes may comprise crystals that crystallize in different parts …

Cumulate formation and melt extraction from mush-dominated magma reservoirs: the melt flush process exemplified at mid-ocean ridges

M Boulanger, L France - Journal of Petrology, 2023 - academic.oup.com
Volcanism is the surface expression of extensive magmatic systems, with their intrusive
counterpart representing~ 80% of the total magma budget. Our knowledge of igneous …

[PDF][PDF] Barometers behaving badly I: Assessing the influence of analytical and experimental uncertainty on clinopyroxene thermobarometry calculations at crustal …

PE Wieser, AJR Kent, CB Till, J Donovan… - Journal of …, 2023 - academic.oup.com
The composition of clinopyroxene and clinopyroxene-liquid (Cpx-Liq) pairs are frequently
used to calculate crystallization/equilibration pressures in igneous systems. While canonical …

Barometers behaving badly II: A critical evaluation of Cpx-only and Cpx-Liq thermobarometry in variably-hydrous arc magmas

PE Wieser, AJR Kent, CB Till - Journal of Petrology, 2023 - academic.oup.com
The chemistry of erupted clinopyroxene crystals (±equilibrium liquids) have been widely
used to deduce the pressures and temperatures of magma storage in volcanic arcs …

Thermobar: an open-source Python3 tool for thermobarometry and hygrometry

P Wieser, M Petrelli, J Lubbers, E Wieser, S Özaydin… - 2022 - eartharxiv.org
We present Thermobar, a new open-source Python3 package for calculating pressures,
temperatures, and melt compositions from mineral and mineral-melt equilibrium. Thermobar …

The Origin and Differentiation of CO2-Rich Primary Melts in Ocean Island Volcanoes: Integrating 3D X-Ray Tomography with Chemical Microanalysis of Olivine …

TD van Gerve, DA Neave, P Wieser… - Journal of …, 2024 - academic.oup.com
Constraining the initial differentiation of primary mantle melts is vital for understanding
magmatic systems as a whole. Chemical compositions of olivine-hosted melt inclusions …

Porosity evolution of mafic crystal mush during reactive flow

MLM Gleeson, CJ Lissenberg… - Nature …, 2023 - nature.com
The emergence of the “mush paradigm” has raised several questions for conventional
models of magma storage and extraction: how are melts extracted to form eruptible liquid …

Magma‐mush interactions in the lower oceanic crust: Insights from Atlantis bank layered series (Southwest Indian Ridge)

M Boulanger, L France, C Ferrando… - Journal of …, 2021 - Wiley Online Library
Magma migration and differentiation processes are key to understanding the development
and evolution of oceanic magma reservoirs. To provide new quantitative geochemical …

Increasing complexity in magmatic architecture of volcanoes along a waning hotspot

AT Tapu, T Ubide, PM Vasconcelos - Nature Geoscience, 2023 - nature.com
Mantle plumes are key drivers of volcanism within tectonic plates. Variations in plume flux
and the resulting magma flux are expected within a plume's lifetime, but their impact on …