Strain localization in magmas

Y Lavallée, JE Kendrick - Reviews in Mineralogy and …, 2022 - pubs.geoscienceworld.org
One of the most intriguing and (from the point of view of modeling) poorly understood
aspects of geomaterial mechanics is strain localization. Strain localization is a common …

[HTML][HTML] A reappraisal of explosive–effusive silicic eruption dynamics: syn-eruptive assembly of lava from the products of cryptic fragmentation

FB Wadsworth, EW Llewellin, JM Castro… - Journal of Volcanology …, 2022 - Elsevier
Silicic volcanic eruptions range in style from gently effusive to highly explosive, and may
switch style unpredictably during a single eruption. Direct observations of subaerial rhyolitic …

In situ confirmation of permeability development in shearing bubble-bearing melts and implications for volcanic outgassing

ARL Kushnir, C Martel, R Champallier… - Earth and Planetary …, 2017 - Elsevier
The ferocity of volcanic eruptions–their penchant for either effusive or explosive behaviour–
is to a large extent a matter of the ease with which volatiles are able to escape the volcanic …

Chrono-stratigraphy of the youngest (last 1500 years) rhyolitic eruptions of Lipari (Aeolian Islands, Southern Italy) and implications for distal tephra correlations

M Pistolesi, M Rosi, AB Malaguti, F Lucchi… - Journal of Volcanology …, 2021 - Elsevier
The youngest (last 1500 years) volcanic eruptions of Lipari, within the Aeolian Archipelago,
produced the prominent pumice cone of Monte Pilato and the obsidian lava flows of Rocche …

Rheological flow laws for multiphase magmas: An empirical approach

M Pistone, B Cordonnier, P Ulmer, L Caricchi - Journal of Volcanology and …, 2016 - Elsevier
The physical properties of magmas play a fundamental role in controlling the eruptive
dynamics of volcanoes. Magmas are multiphase mixtures of crystals and gas bubbles …

Emplacement of the Rocche Rosse rhyolite lava flow (Lipari, Aeolian Islands)

LA Bullock, R Gertisser, B O'driscoll - Bulletin of Volcanology, 2018 - Springer
Abstract The Rocche Rosse lava flow marks the most recent rhyolitic extrusion on Lipari
island (Italy), and preserves evidence for a multi-stage emplacement history. Due to the …

Physical and mechanical rock properties of a heterogeneous volcano; the case of Mount Unzen, Japan

JE Kendrick, LN Schaefer, J Schauroth… - Solid Earth …, 2020 - se.copernicus.org
Volcanoes represent one of the most critical geological settings for hazard modelling due to
their propensity to both unpredictably erupt and collapse, even in times of quiescence …

Frictional melting in magma and lava

JE Kendrick, Y Lavallée - Reviews in Mineralogy and …, 2022 - pubs.geoscienceworld.org
The product of frictional melting of geomaterials is termed “pseudotachylyte”. The name, first
coined by Shand (1916), represents the visual similarity to the lava “tachylyte”, being a dark …

Pantasma: Evidence for a Pleistocene circa 14 km diameter impact crater in Nicaragua

P Rochette, R Alaç, P Beck, G Brocard… - … & Planetary Science, 2019 - Wiley Online Library
The circa 14 km diameter Pantasma circular structure in Oligocene volcanic rocks in
Nicaragua is here studied for the first time to understand its origin. Geomorphology, field …

[HTML][HTML] Lava–substrate interaction: Constraints on flow emplacement and basal sintering, Lebuj rhyolitic flow, Tokaj Mountains, Carpathian-Pannonian region

J Szepesi, A Vona, IJ Kovács, K Fintor, A Scarani… - Journal of Volcanology …, 2023 - Elsevier
The surface extrusion of rhyolite lava is linked with a complex edifice morphology and
texturally diverse internal structure. The rarely exposed basal flow/dome zones provide a …