Results 41 to 50 of about 146,104 (239)

Pyroclastic deposits and volcanic history of Mayor Island [PDF]

open access: yes, 1981
The emergent summit of Mayor Island, Bay of Plenty, New Zealand, is a peralkaline rhyolite volcano constructed by: a sequence of lava flows, the Tutaretare Rhyolite Formation new; and pyroclastic deposits, the Oira Pyroclastite Formition (new).
Briggs, Roger M.   +2 more
core   +2 more sources

Hydrothermal alteration and sealing at Turrialba as a mechanism for phreatic eruption triggering

open access: yes, 2021
Turrialba is a basaltic to andesitic Holocene stratovolcano that after decades of quiescence re-activated in 1996 and has been highly active ever since.
Emily Mick   +3 more
semanticscholar   +1 more source

Explosive activity of the summit cone of Piton de la Fournaise volcano (La Réunion island): A historical and geological review [PDF]

open access: yes, 2013
International audienceSummit explosive activity and collapses that form pit craters and calderas represent major volcanic hazards on a dominantly effusive, frequently active volcano like Piton de la Fournaise.
Di Muro, Andrea   +5 more
core   +2 more sources

Permeability-control on volcanic hydrothermal system: case study for Mt. Tokachidake, Japan, based on numerical simulation and field observation [PDF]

open access: yes, 2017
We investigate a volcanic hydrothermal system by using numerical simulation with three key observables as reference: the magnetic total field, vent temperature, and heat flux. We model the shallow hydrothermal system of Mt. Tokachidake, central Hokkaido,
Nobuo Matsushima   +3 more
core   +1 more source

Lava lakes and shallow level magmatic feeding systems of mafic volcanoes of an ocean island: Ambrym, Vanuatu (New Hebrides), South Pacific [PDF]

open access: yes, 2006
Ambrym is an active volcanic island with 2 major vent complexes; Marum and Benbow. These vent complexes are continuously active over at least the past two thousands of years.
Cronin, Shane J., Nemeth, Karoly
core   +2 more sources

Vegetation dieback as a proxy for temperature within a wet pyroclastic density current: A novel experiment and observations from the 6th of August 2012 Tongariro eruption [PDF]

open access: yes, 2014
The 6th of August 2012 eruption of Te Maari (Mt Tongariro, New Zealand) generated wet pyroclastic density currents (PDCs) which caused widespread dieback of vegetation (singed, brown foliage) in their path.
Bylsma, Rebecca Johanna   +5 more
core   +2 more sources

Waveform inversion of the ultra-long-period seismic event associated with ground tilt motion during an eruption of Mount Kusatsu–Shirane, Japan, on January 23, 2018

open access: yesEarth, Planets and Space, 2022
We conducted waveform inversions of an ultra-long-period (~ 240-s) event associated with the phreatic eruption of Mount Kusatsu–Shirane on January 23, 2018. We used broadband seismic and tilt records from three stations surrounding the eruption site. The
Ryohei Takahashi   +2 more
doaj   +1 more source

Corrigendum. Maars to calderas: end-members on a spectrum of explosive volcanic depressions [PDF]

open access: yes, 2017
A corrigendum on Maars to calderas: end-members on a spectrum of explosive volcanic depressions by Palladino, D. M., Valentine, G. A., Sottili, G., and Taddeucci, J. (2015). Front. Earth Sci. 3:36. doi: 10.3389/feart.2015.00036 Reason for Corrigendum:
Palladino, D. M.   +3 more
core   +1 more source

Volcanic Unrest and Pre-eruptive Processes: A Hazard and Risk Perspective [PDF]

open access: yes, 2017
Volcanic unrest is complex and capable of producing multiple hazards that can be triggered by a number of different subsurface processes. Scientific interpretations of unrest data aim to better understand (i) the processes behind unrest and their ...
Barclay, Jennifer   +2 more
core   +3 more sources

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