Diverse magma storage and major and volatile magma composition: What are the implications on the eruptive style across a volcanic arc? An example of the Lesser …

A Metcalfe, S Moune, JC Komorowski, R Robertson… - Earth-Science …, 2023 - Elsevier
Understanding variations in eruptive style and defining the processes and controls on
different eruption styles is particularly important at arc volcanoes. This is due to the range of …

Lateral edifice collapse and volcanic debris avalanches: A post-1980 Mount St. Helens perspective

L Siebert, ME Reid - Bulletin of Volcanology, 2023 - Springer
Abstract The 1980 eruption of Mount St. Helens was instrumental in advancing
understanding of how volcanoes work. Lateral edifice collapses and the generation of …

Characterizing lithological, weathering, and hydrothermal alteration influences on volcanic rock properties via spectroscopy and laboratory testing: a case study of …

LN Schaefer, G Kereszturi, BM Kennedy… - Bulletin of …, 2023 - Springer
The geomechanical characterization of volcanic material has important implications for
geothermal and mineral exploration, engineering design, geophysical signals of volcano …

The tensile strength of hydrothermally altered volcanic rocks

MJ Heap, CE Harnett, FB Wadsworth, HA Gilg… - Journal of Volcanology …, 2022 - Elsevier
The tensile strength of volcanic rocks is an important parameter for understanding and
modelling a wide range of volcanic processes, and in the development of strategies …

[HTML][HTML] Mechanical and topographic factors influencing lava dome growth and collapse

CE Harnett, MJ Heap - Journal of Volcanology and Geothermal Research, 2021 - Elsevier
Lava dome collapse hazards are intimately linked with their morphology and internal
structure. We present new lava dome emplacement models that use calibrated rock …

The influence of heterogeneity on the strength of volcanic rocks and the stability of lava domes

MJ Heap, CE Harnett, T Nazarbayov, Z Heng… - Bulletin of …, 2023 - Springer
The collapse of lava domes, inherently heterogeneous structures, represents a significant
volcanic hazard. Numerical and analogue models designed to model dome instability and …

The thermal properties of hydrothermally altered andesites from La Soufrière de Guadeloupe (Eastern Caribbean)

MJ Heap, DE Jessop, FB Wadsworth… - Journal of Volcanology …, 2022 - Elsevier
The heat flux of an active volcano provides crucial information on volcanic unrest. The
hydrothermal activity often responsible for volcanic unrest can be accompanied by an …

Rock alteration map** in and around fossil shallow intrusions at Mt. Ruapehu New Zealand with laboratory and aerial hyperspectral imaging

A Douglas, G Kereszturi, LN Schaefer… - Journal of Volcanology …, 2022 - Elsevier
Diagnostic absorption features in hyperspectral data can be used to identify a specific
mineral or mineral associations. However, it is unknown how accurate hyperspectral …

Hydrothermally induced edifice destabilisation: the mechanical behaviour of rock mass surrounding a shallow intrusion in andesitic lavas, Pinnacle Ridge, Ruapehu …

SP Mordensky, MC Villeneuve, BM Kennedy… - Engineering …, 2022 - Elsevier
Volcanic edifices are composed of an assortment of materials with varying mechanical
behaviours. The range in mechanical behaviours of these rock materials presents a critical …

Martian crustal model from a joint inversion of receiver functions and apparent shear wave velocity

M Dai, D Sun - Journal of Geophysical Research: Planets, 2023 - Wiley Online Library
Receiver function (RF) based studies have revealed the layered Martian crustal structure
beneath the InSight, which provides key information about the composition, rock alteration …