Results 101 to 110 of about 9,726 (207)

Marine tephrochronology: a personal perspective [PDF]

, 2014
This special volume on marine tephrochronology is remarkable, and timely, because it marks a concerted step towards what might be informally termed ‘phase 3’ of a revolution in Quaternary geosciences that began around 40 years ago.
Lowe, David J.
core   +2 more sources

Numerical Simulations of Sulfate Formation via the Diffusive Reaction Between Ca2+ in Volcanic Ash and SO2 Gas: Evaluation of SO2 Losses From Eruption Clouds During the 1991 Pinatubo Eruption

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Volcanic ash formed during explosive volcanism reacts with SO2 gas molecules in volcanic conduits and eruption clouds, resulting in the formation of CaSO4. When ash is removed from the eruption cloud, the SO2 gas molecule is scavenged from the eruption cloud. The CaSO4 growth is rate‐limited by Ca2+ diffusion at high temperatures.
S. Watanabe, S. Okumura, Y. J. Suzuki
wiley   +1 more source

Towards rapid integrated data acquisition and management during a volcanic crisis: the 2021 Tajogaite eruption of Cumbre Vieja (La Palma, Canary Islands)

Volcanica
The 2021 eruption of Cumbre Vieja in La Palma (Canary Islands) provided a unique opportunity for the  international scientific community to collaborate and provide multidisciplinary data to civil protection authorities during a rapidly evolving crisis ...
Fátima Rodríguez, Beverley Coldwell, Alba Martín-Lorenzo, Daniele Andronico, Costanza Bonadonna, Elisabetta Del Bello, Marco Pistolesi, Jacopo Taddeucci, Sebastien Biass, Jorge E. Romero, Marija Voloschina, Piergiorgio Scarlato, William Hernández, Luca D’Auria, Nemesio M. Pérez   +14 more
doaj   +1 more source

Complex circular subsidence structures in tephra deposited on large blocks of ice: Varða tuff cone, Öræfajökull, Iceland [PDF]

, 2016
Several broadly circular structures up to 16 m in diameter, into which higher strata have sagged and locally collapsed, are present in a tephra outcrop on southwest Öræfajökull, southern Iceland.
A Geyer, A Hubbard, A Olszewski, A. J. Walker, AES Forbes, AJ Russell, B Brock, BC McDonald, BF Houghton, BN Whittaker, C Swithinbank, CH Okubo, D. W. McGarvie, E Magnússon, E Zanella, EP Holohan, FS Tweed, H Fay, H Norðdahl, H Tómasson, J Hauff, J Jónsson, J Martí, J. L. Smellie, JA Stevenson, JDL White, JE Cocksedge, JK Maizels, JK Maizels, JS Gilbert, JS Johnson, K Sharma, LO Krenek, MJ Branney, MJ Branney, MJ Branney, MJ Burke, O Roche, O Roche, PD Cole, PD Rowley, PM Marren, R Sulpizio, R. Burgess, RJ Brown, RJ Brown, RJ Carey, RME Thomas, S Burchardt, S Poppe, S Visale, SC Loughlin, TH Druitt, TR Walter, V Acocella, V Acocella, V Manville, V Zanon, WJ Russell, YK Sohn, YK Sohn, YK Sohn   +61 more
core   +2 more sources

Climate and Volcanic Activity Modulate Area–Distance Effects on Plant Diversity Along the Temperate–Subarctic Island Volcanic Arc

Journal of Biogeography, Volume 53, Issue 3, March 2026.
ABSTRACT Aims To evaluate how equilibrium (ETIB) and niche‐based (NTIB) island‐biogeography frameworks jointly explain taxonomic and phylogenetic diversity in a temperate–subarctic, volcanically active archipelago. Location Kuril Islands, northwestern Pacific (44°–50° N). Time Period Present. Taxon Vascular plants.
Kirill Korznikov, Vyacheslav Barkalov, Pavel Fibich, Jan Altman, Jiří Doležal   +4 more
wiley   +1 more source

Preservation of thin tephra

Journal of Applied Volcanology, 2017
The preservation of thin (
Russell Blong, Neal Enright, Paul Grasso
doaj   +1 more source

Influence of particle aggregation on the tephra dispersal and sedimentation from the October 8, 2016, eruption of Aso volcano

Earth, Planets and Space, 2020
The phreatomagmatic eruption at Aso volcano on October 8, 2016, released PDC and fallout up to 320 km from the vent, providing an opportunity to study the dispersal and sedimentation of tephra bearing wet and dry aggregates.
Tomohiro Tsuji, Naoki Nishizaka, Kozo Ohnishi   +2 more
doaj   +1 more source

Mechanism of Volcanic Tephra Falling Detected by X-Band Multi-Parameter Radar

Journal of Disaster Research, 2016
The present study shows the possibility of using X-band multi-parameter radar to detect volcanic tephra for estimating the amount of volcanic tephra in the air even when the amount of volcanic tephra is very low. The model proposed in this study can detect tephra with diameters of 0.5 mm to 3 mm.
Satoru Oishi, Masahiro Iida, Masahide Muranishi, Mariko Ogawa, Ratih Indri Hapsari, Masato Iguchi   +5 more
openaire   +1 more source

Enhancing event stratigraphic correlations in the ultra‐deep Japan Trench using XRF‐CS cluster‐based chemostratigraphy

The Depositional Record, Volume 12, Issue 1, February 2026.
Cluster‐based chemostratigraphy using XRF‐CS enables high‐resolution correlation of event deposits across contrasting depositional settings in the Japan Trench. This approach reveals previously unrecognised events and compositional heterogeneity, offering new insights into sediment provenance and earthquake‐triggered deposition, with implications for ...
Jyh‐Jaan Steven Huang, Charlotte Pizer, Jun‐Ting Lin, Ken Ikehara, Michael Strasser   +4 more
wiley   +1 more source

Stop 2 Kainui silt loam and Naike clay, Gordonton Rd [PDF]

, 2008
At this stop are several remarkable features both stratigraphic and pedological, and a “two-storied” soil, the Kainui silt loam alongside (in just a few places) the Naike clay. Both soils are Ultisols. The sequence of tephra beds and buried soil horizons
Lowe, David J.
core   +3 more sources