Results 71 to 80 of about 6,088 (199)

A review of the supercritical state of eruption‐fed volcanic density currents in subaerial and subaqueous settings

Sedimentology, EarlyView.
ABSTRACT Subaerial Pyroclastic Density Currents (PDCs) and Subaqueous Eruption‐Fed Density Currents (SEFDCs) produced during volcanic eruptions can present major hazards to surrounding communities and ecosystems. The bedforms deposited by these volcanic density currents can provide insights into the nature of transport and depositional processes, which
Shannon E. Frey, Martin Jutzeler, Rebecca J. Carey   +2 more
wiley   +1 more source

Atmospheric Dispersion Modelling at the London VAAC: A Review of Developments since the 2010 Eyjafjallajökull Volcano Ash Cloud

Atmosphere, 2020
It has been 10 years since the ash cloud from the eruption of Eyjafjallajökull caused unprecedented disruption to air traffic across Europe. During this event, the London Volcanic Ash Advisory Centre (VAAC) provided advice and guidance on the expected ...
Frances M. Beckett, Claire S. Witham, Susan J. Leadbetter, Ric Crocker, Helen N. Webster, Matthew C. Hort, Andrew R. Jones, Benjamin J. Devenish, David J. Thomson   +8 more
doaj   +1 more source

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, EarlyView.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

Seismic Data, Photographic Images and Physical Modeling of Volcanic Plumes as a Tool for Monitoring the Activity of Nevado del Ruiz Volcano, Colombia

Frontiers in Earth Science, 2018
Quantification of volcanic plume parameters is a fundamental task to characterize the behavior of an active volcano. The volcanic plume mass, flow rate and ash injection were determined from seismic data, in addition to photographic images and ...
John Makario Londono, John Makario Londono, Beatriz Galvis, Beatriz Galvis   +3 more
doaj   +1 more source

Enhancing volcanic eruption simulations with the WRF-Chem v4.8 [PDF]

Geoscientific Model Development
Volcanic eruptions are one of the major natural hazards, exerting profound effects on the environment and climate. The emissions associated with such eruptions pose substantial risks to terrestrial systems and public health, particularly through the ...
A. Ukhov, G. Stenchikov, J. Schnell, J. Schnell, R. Ahmadov, U. Rizza, G. Grell, I. Hoteit   +7 more
doaj   +1 more source

The role of airborne volcanic ash for the surface ocean biogeochemical iron-cycle: a review [PDF]

Biogeosciences, 2010
Iron is a key micronutrient for phytoplankton growth in the surface ocean. Yet the significance of volcanism for the marine biogeochemical iron-cycle is poorly constrained.
S. Duggen, N. Olgun, P. Croot, L. Hoffmann, H. Dietze, P. Delmelle, C. Teschner   +6 more
doaj  

Volcanic ash drives contrasting redox shifts and biogeochemical feedbacks in ancient marine and lacustrine systems

Communications Earth & Environment
Volcanic eruptions are major perturbations to Earth’s biogeochemical cycles, yet their long-term effects on nutrient dynamics and ecosystem recovery remain unclear.
Kun Zhang, Eva E. Stüeken, Christophe Thomazo, Zibin Zhao, Pavel S. Minyuk, Shixi Cai, Kai Yang, Qing Chang, Ziping Liu, Edith Bai   +9 more
doaj   +1 more source

The effects of Damavand volcanic ash on some morphological and physiological characteristics of Phaseolus vulgaris

یافته‌های نوین در علوم زیستی, 2020
The purpose of this study was to investigate the effect of Damavand volcanic ash on the morphological and physiological characteristics of beans as a factorial experiment in a completely randomized design.
Roghayeh Heydari, Ramin Ezzati, Mohammadali Zahed   +2 more
doaj  

Minor epic: Notes toward a different “Anthropoetry”

Anthropology and Humanism, Volume 51, Issue 1, June 2026.
Abstract Anthropologists have often turned to poetry as a means of accessing emotional registers of which conventional academic prose is unable to avail. In doing so, they have tacitly conflated poetry with lyric poetry, today probably the most widely practiced poetic genre, associated in particular with the expression of inner feelings and subjectival
Stuart McLean
wiley   +1 more source

Blood Serum From Obese Women Raises ROS Production by Neural Stem Cells

Developmental Neurobiology, Volume 86, Issue 2, April 2026.
ABSTRACT Maternal obesity has been associated with adverse pregnancy outcomes and altered fetal development, but the direct influence of circulating maternal factors on early human neural cells remains poorly understood. Neural stem cells (NSCs) provide a controlled system to examine how metabolic and inflammatory changes may affect early ...
Phelipe Elias da Silva, Natássia Caroline Resende Corrêa, Natália Ferreira Silva, Carlos Ueira‐Vieira, Hebreia Oliveira Almeida‐Souza, Mario Machado Martins, Tiara da Costa Silva, Renata Graciele Zanon   +7 more
wiley   +1 more source