Results 91 to 100 of about 14,597 (213)

Basaltic Explosive Volcanism in a tuff-dominated Intraplate Setting, Sarmiento Formation (Middle Eocene- lower Miocene), Patagonia Argentina

Latin American Journal of Sedimentology and Basin Analysis
The Sarmiento Formation (middle Eocene to early Miocene) represents the distal record of the activity of the Andean volcanic arc in central Patagonia, mainly dominated by accumulation and reworking of fine ash in a low-gradient continental setting ...
José Matildo Paredes, Ferrán Colombo, Nicolás Foix, José Oscar Allard, Adriana Nillni, Mariana Allo   +5 more
doaj  

Volcanism and stratigraphy of the Neoproterozoic Campo Alegre Basin, SC, Brazil

Anais da Academia Brasileira de Ciências, 2001
The depositional succession of the Campo Alegre Basin (Santa Catarina - southern Brazil) was investigated having the evolution of the volcanic activity as background.
SERGIO B. CITRONI, MIGUEL A. S. BASEI, OSWALDO SIGA JR., JOSÉ M. DOS REIS NETO   +3 more
doaj   +1 more source

Arc Heat Flow and Magmatic Heat Budgets

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract We evaluate hydrothermal heat loss from 11 volcanic‐arc segments (∼6,000 km of arc length, ∼10% of the global total), motivated by the observation that much magmatic heat ultimately crosses the land surface as heated aqueous fluid. Heat loss takes place by volcanic eruption, geothermal heat conduction to the surface, fumarolic (vapor ...
S. E. Ingebritsen, Kazuki Sawayama, Yuri Taran, Giovanni Chiodini, Tsuneomi Kagiyama, Hiroshi Shinohara, Julie V. Rowland, Benjamin A. Black   +7 more
wiley   +1 more source

Eco‐Friendly Bioplastic Film Produced With Green Plantain Starch (Musa paradisiaca L.): Effect of Activated Carbon Addition and Hydrothermal Modification

Polymer Composites, Volume 47, Issue 9, Page 8048-8063, 10 May 2026.
Activated Carbon as a Reinforcing Material for Starch Bioplastics. ABSTRACT Eco‐friendly starch‐based bioplastic films reinforced with activated carbon (AC) were produced using green plantain starch in its native and heat‐moisture treatment (HMT) forms to overcome typical limitations of starch materials, such as low mechanical strength and poor water ...
Eduardo Bruno Macêdo Viana, Matheus Ferreira Almeida, Maria José Missão Cordeiro, Sara Moreno Pereira Lacerda, Alcebíades Rebouças São José, Renata Cristina Ferreira Bonomo, Cassiara Camelo Eloi de Souza, Mateus Pereira Flores Santos, Cristiane Martins Veloso   +8 more
wiley   +1 more source

Combined effusive-explosive silicic volcanism straddles the multiphase viscous-to-brittle transition

Nature Communications, 2018
Recent observations of silicic eruptions show that they can be both effusive and explosive at the same time. Here the authors use scaled experiments to demonstrate that magma in effusive eruptions will fracture during flow to the Earth’s surface ...
Fabian B. Wadsworth, Taylor Witcher, Caron E. J. Vossen, Kai-Uwe Hess, Holly E. Unwin, Bettina Scheu, Jonathan M. Castro, Donald B. Dingwell   +7 more
doaj   +1 more source

Jellyfish‐Derived Activated Carbon: Synthesis, Characterization, and Adsorption Performance

Israel Journal of Chemistry, Volume 66, Issue 3, May 2026.
This research introduces a circular economy solution for environmental water cleanup by transforming invasive jellyfish biomass into high‐quality activated carbon. Through pyrolysis and KOH activation, the created porous material efficiently removes methylene blue and lead from water.
Nitzan Cooper, Shachar Richter
wiley   +1 more source

How Volume Increases the Mobility of Geophysical Granular Flow: A Unified Rheological Perspective

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Geophysical granular flows, involving rapidly flowing granular materials, can exhibit volume‐enhanced mobility. Lacking a mechanistic understanding of such size effects limits the applications of lab‐scale findings to natural events. Using discrete element method simulations, we find that increasing granular system size suppresses energy ...
Ming Peng, Jiacheng Xia, Lu Jing, Gordon G. D. Zhou, Limin Zhang, Jianfeng Chen   +5 more
wiley   +1 more source

The 2008 eruption of the Chaitén Volcano, Chile: a preliminary report La erupción 2008 del volcán Chaitén, Chile: informe preliminar

Andean Geology, 2009
On May 2, 2008 a Plinian eruption began on Chaiten volcano. Dome growing stage would have started on May 10-12 and extensive lahars and floods affected Chaiten town (ca. 5,000 inhabitants) on May 12. A volume up to ca.
Luis E Lara
doaj  

Polynesian settlement of New Zealand and the impacts of volcanism on early Maori society: An update [PDF]

, 2008
Presents an overview of the timing of Polynesian settlement in New Zealand, discussing the application of tephrochronology and rat and avian bone dating to the problem.
Lowe, David J.
core   +1 more source

The Slip Distributions of the 1952 and 2025 Kamchatka Earthquakes From Tsunami Waveforms Recorded Around the Pacific Ocean

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The July 2025 Kamchatka earthquake (Mw 8.8) generated Pacific‐wide tsunamis. Inversion of 40 DART bottom pressure records revealed a large (∼9 m) slip at 200–400 km southwest of the epicenter. This model reproduces the local geodetic data, and is similar to other finite fault models based on teleseismic and geodetic data. Inversion of the tide
Yushiro Fujii, Kenji Satake
wiley   +1 more source