Results 81 to 90 of about 9,703,189 (200)

Late Pliocene–Quaternary Arc Volcanism at the Southern Limit of the Hikurangi Subduction Zone: Revised Chronology of the Taranaki Peninsula, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.
Igneous centres across the Taranaki Peninsula represent the southwestern limit of arc volcanism associated with the Tonga–Kermadec–Hikurangi subduction system. Taranaki Maunga, the youngest and largest of three andesitic stratovolcanoes, dominates the geomorphology of the Taranaki Peninsula along with the eroded remnants of the Kaitake and Pouakai ...
G. P. Thrasher, M. W. Sagar, H. Seebeck, G. P. D. Viskovic   +3 more
wiley   +1 more source

Practical guide for volcano observatories on paleomagnetic sampling of pyroclastic deposits from active volcanoes

Volcanica
This brief guide is designed to teach workers at observatories of volcanoes exhibiting explosive activity how to take samples of pyroclastic deposits for paleomagnetic studies.
Geoffrey A Lerner, R. Marcela Lira-Beltrán   +1 more
doaj   +1 more source

Estimating Sub‐Pixel Temperatures During Volcanic Eruptions Using Dual‐Band Thermal Imaging Technique: Case Studies From Whakaari/White Island (New Zealand) and Tofua (Tonga)

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.
This study presents the first application of a dual‐band satellite thermal monitoring technique in New Zealand and Tonga, using the 2019 eruption of Whakaari/White Island and the persistently active Lofia crater on Tofua volcano as case studies. At Whakaari/White Island, near‐synchronous Landsat‐8 and Sentinel‐2A data (16 min interval) were analysed ...
Salman Ashraf, Geoff Kilgour, Jenny Black, Muhammad Aufaristama   +3 more
wiley   +1 more source

Interactions between pyroclastic density currents : insights from analog experiments [PDF]

, 2018
During some explosive volcanic eruptions, multiple pyroclastic density currents have been produced within a short time span of each other and flowed through the same area.
O'Donnell, Sean Bryan
core   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki, Michael E. Jackson, Glen S. Mattioli, David J. Mencin, Karl Feaux, Donna J. Charlevoix   +5 more
wiley   +1 more source

The Effects of Vent Location, Event Scale, and Time Forecasts on Pyroclastic Density Current Hazard Maps at Campi Flegrei Caldera (Italy)

Frontiers in Earth Science, 2017
This study presents a new method for producing long-term hazard maps for pyroclastic density currents (PDC) originating at Campi Flegrei caldera. Such method is based on a doubly stochastic approach and is able to combine the uncertainty assessments on ...
Andrea Bevilacqua, Andrea Bevilacqua, Augusto Neri, Marina Bisson, Tomaso Esposti Ongaro, Franco Flandoli, Roberto Isaia, Mauro Rosi, Stefano Vitale, Stefano Vitale   +9 more
doaj   +1 more source

Interaction of pyroclastic density currents with human settlements: evidence from ancient Pompeii

, 2005
Integrating field observations and rock-magnetic measurements, we report how a turbulent pyroclastic density current interacted with and moved through an urban area.
Zanella, E., Deluca, E., Gurioli, L., Pareschi, M. T., Bisson, M., Lanza, R., Lanza, Roberto, Zanella, Elena   +7 more
core   +1 more source

A Geophysical Crustal Model of Central Italy for Geoneutrino Predictions in Borexino

Earth and Space Science, Volume 13, Issue 11, November 2026.
Abstract Predicting the geoneutrino signal at underground detectors requires a local crustal reference whose precision matches the experimental uncertainty. The current Borexino reference is 15 years old and deterministic. We replace it with GUESS, a probabilistic 3‐D model of the Gran Sasso region, built by Bayesian inversion of multi‐source ...
L. Rossi, M. Capponi, P. Conti, N. I. Elek, A. Ermini, K. G. C. Raptis, M. Reguzzoni, V. Strati, M. M. Tiberti, F. E. Maesano, R. Maffucci, M. Buttinelli, M. Abdelkader, M. Albèri, A. Albertella, G. Hasnain, F. Mantovani, L. Pagano, S. Ramouz, R. Salvini, D. Sampietro, P. S. Dinani   +21 more
wiley   +1 more source

Spontaneous Unsteadiness and Sorting in Pyroclastic Density Currents and their Deposits - Data

, 2023
Dataset accompanying Spontaneous Unsteadiness and Sorting in Pyroclastic Density Currents and their Deposits, in Particulate Gravity Currents in the Environment. Raw experiment images and videos for selected runs.
Parsons, Daniel, WIlliams, Rebecca, Johnston, Thomas, Smith, Gregory, Walding, Nemi, Provost, Alison, Rowley, Pete, Johnson, Matthew, Dowey, Natasha, Roche, Olivier   +9 more
core   +1 more source

An Experimental Study of Particle‐Laden Jet Noise as an Analogue to Tephra‐Laden Volcanic Eruptions

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 11, November 2026.
Abstract Explosive volcanic eruptions produce vast amounts of acoustic energy, generally in the infrasound range. For sustained eruptions, infrasound is often dominated by jet noise, a form of noise similar to the sound from human‐made jet engines. Jet noise largely results from the combination of two sound‐producing components: fine‐scale turbulence ...
Gilles Seropian, Julia E. Gestrich, Jörn Sesterhenn, Thomas J. Aubry, James Hickey, Markus Schmid   +5 more
wiley   +1 more source