The mechanical behaviour and failure modes of volcanic rocks: a review

MJ Heap, MES Violay - Bulletin of Volcanology, 2021 - Springer
The microstructure and mineralogy of volcanic rocks is varied and complex, and their
mechanical behaviour is similarly varied and complex. This review summarises recent …

Whakaari/White Island: a review of New Zealand's most active volcano

G Kilgour, B Kennedy, B Scott… - New Zealand Journal …, 2021 - Taylor & Francis
ABSTRACT Whakaari/White Island is a partially submerged, offshore andesite island
volcano, located at the northern end of the Taupō Volcanic Zone. Since the late 1960s …

Automatic precursor recognition and real-time forecasting of sudden explosive volcanic eruptions at Whakaari, New Zealand

DE Dempsey, SJ Cronin, S Mei… - Nature …, 2020 - nature.com
Sudden steam-driven eruptions strike without warning and are a leading cause of fatalities
at touristic volcanoes. Recent deaths following the 2019 Whakaari eruption in New Zealand …

Cyclical geothermal unrest as a precursor to Iceland's 2021 Fagradalsfjall eruption

ÓG Flóvenz, R Wang, GP Hersir, T Dahm, S Hainzl… - Nature …, 2022 - nature.com
Understanding and constraining the source of geodetic deformation in volcanic areas is an
important component of hazard assessment. Here, we analyse deformation and seismicity …

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 …

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 …

Seismic precursors to the Whakaari 2019 phreatic eruption are transferable to other eruptions and volcanoes

A Ardid, D Dempsey, C Caudron, S Cronin - Nature communications, 2022 - nature.com
Volcanic eruptions that occur without warning can be deadly in touristic and populated
areas. Even with real-time geophysical monitoring, forecasting sudden eruptions is difficult …

Stress sensitivity of porosity and permeability under varying hydrostatic stress conditions for different carbonate rock types of the geothermal Malm reservoir in …

D Bohnsack, M Potten, S Freitag, F Einsiedl… - Geothermal …, 2021 - Springer
In geothermal reservoir systems, changes in pore pressure due to production (depletion),
injection or temperature changes result in a displacement of the effective stresses acting on …

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 …