A multi-decadal view of seismic methods for detecting precursors of magma movement and eruption

BA Chouet, RS Matoza - Journal of Volcanology and Geothermal Research, 2013 - Elsevier
With the emergence of portable broadband seismic instrumentation, availability of digital
networks with wide dynamic range, and development of new powerful analysis techniques …

Reducing risk from lahar hazards: concepts, case studies, and roles for scientists

TC Pierson, NJ Wood, CL Driedger - Journal of Applied Volcanology, 2014 - Springer
Lahars are rapid flows of mud–rock slurries that can occur without warning and
catastrophically impact areas more than 100 km downstream of source volcanoes …

Hydrothermal alteration can result in pore pressurization and volcano instability

MJ Heap, T Baumann, HA Gilg, S Kolzenburg… - …, 2021 - pubs.geoscienceworld.org
The collapse of a volcanic flank can be destructive and deadly. Hydrothermal alteration is
common to volcanoes worldwide and is thought to promote volcano instability by decreasing …

Permeability and porosity relationships of edifice-forming andesites: a combined field and laboratory study

J Farquharson, MJ Heap, NR Varley, P Baud… - Journal of Volcanology …, 2015 - Elsevier
Permeability of the edifice is one of the key parameters governing eruptive style, magnitude,
and frequency of active stratovolcanoes. This study presents a suite of density and …

Alteration‐induced volcano instability at la Soufrière de Guadeloupe (eastern Caribbean)

MJ Heap, TS Baumann… - Journal of …, 2021 - Wiley Online Library
Volcanoes are unstable structures that deform laterally and frequently experience mass
wasting events. Hydrothermal alteration is often invoked as a mechanism that contributes …

Epithermal paleosurfaces

RH Sillitoe - Mineralium Deposita, 2015 - Springer
Many active volcanic-hydrothermal and geothermal systems are characterized by distinctive
surface and near-surface landforms and products, which are generated during discharge of …

Hydrothermal alteration of andesitic lava domes can lead to explosive volcanic behaviour

MJ Heap, VR Troll, ARL Kushnir, HA Gilg… - Nature …, 2019 - nature.com
Dome-forming volcanoes are among the most hazardous volcanoes on Earth. Magmatic
outgassing can be hindered if the permeability of a lava dome is reduced, promoting pore …

[HTML][HTML] Mechanical behaviour and failure modes in the Whakaari (White Island volcano) hydrothermal system, New Zealand

MJ Heap, BM Kennedy, N Pernin, L Jacquemard… - Journal of Volcanology …, 2015 - Elsevier
Volcanic hydrothermal systems host a prodigious variety of physico-chemical conditions.
The physico-chemical state and mechanical behaviour of rocks within is correspondingly …

Lithological map** of Waiotapu Geothermal Field (New Zealand) using hyperspectral and thermal remote sensing and ground exploration techniques

C Rodriguez-Gomez, G Kereszturi, R Reeves, A Rae… - Geothermics, 2021 - Elsevier
Hydrothermal systems develop secondary mineral assemblages due to rock and fluid
interactions. Such minerals can be identified on the surface and mapped using …

The thermal properties of porous andesite

MJ Heap, ARL Kushnir, J Vasseur… - Journal of Volcanology …, 2020 - Elsevier
The thermal properties of volcanic rocks are crucial to accurately model heat transfer in
volcanoes and in geothermal systems located within volcanic deposits. Here we provide …