Results 21 to 30 of about 2,884 (212)

Magmatic system of the Klyuchevskoy volcano according to seismic data and their geomechanical interpretation

Записки Горного института, 2023
3D analysis of the magma transport and accumulation mechanism in the structure and basement of the Klyuchevskoy volcano preceding 11 eruptions in 2003-2021 has been performed.
Aleksei V. Kiryukhin, Olga V. Bergal-Kuvikas, Mikhail V. Lemzikov, Nikita B. Zhuravlev   +3 more
doaj  

Ground-Based Remote Sensing and Imaging of Volcanic Gases and Quantitative Determination of Multi-Species Emission Fluxes

Geosciences, 2018
The physical and chemical structure and the spatial evolution of volcanic plumes are of great interest since they influence the Earth’s atmospheric composition and the climate. Equally important is the monitoring of the abundance and emission patterns of
Ulrich Platt, Nicole Bobrowski, Andre Butz   +2 more
doaj   +1 more source

The Chaitén rhyolite lava dome: Eruption sequence, lava dome volumes, rapid effusion rates and source of the rhyolite magma

Andean Geology, 2013
We use geologic field mapping and sampling, photogrammetric analysis of oblique aerial photographs, and digital elevation models to document the 2008-2009 eruptive sequence at Chaitén Volcano and to estimate volumes and effusion rates for the lava dome ...
John Stith Pallister, Angela K. Diefenbach, William C. Burton, Jorge Muñoz, Julia P. Griswold, Luis E. Lara, Jacob B. Lowenstern, Carolina E. Valenzuela   +7 more
doaj   +1 more source

Distinguishing shallow from mid-crustal magmatic processes at Soufrière Hills Volcano using Finite Element Modelling and co-analysis of EDM and GPS data

Volcanica, 2023
We modelled ground deformation at Soufrière Hills Volcano (SHV), using data collected by the Montserrat Volcano Observatory from 2010–2019. We investigate the combined use of Electronic Distance Measuring (EDM) and Global Positioning System (GPS) to ...
Alexander Johnson, James Hickey, Karen Pascal, Ben Williamson, Raquel Syers   +4 more
doaj   +1 more source

Forecasting SO2 emission of Kilauea volcano using intelligent method of data analysis

Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2019
Kilauea is one of the most active and well-known volcanoes in the world and most of our knowledge of volcanism originates from its research. During a long study of volcanoes, many different methods of forecasting their activity were proposed, from the ...
Stanislav Zabielin
doaj   +1 more source

Klyuchevskoy volcano activity between November 2019 and June 2020

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
Klyuchevskoy volcano activity between November 2019 and June ...
Черкашин Р.И., Иванов В.В., Озеров А.Ю., Мельников Д.В., Демянчук Ю.В.   +4 more
doaj   +1 more source

Origin of color variations of thin, nano-sized layers of volcanic cinder from the Sierra Negra Volcano of the Galapagos Islands

Uniciencia, 2021
Volcanic cinder, also known as scoria, is an extrusive igneous rock that forms when gas-rich magmas of basaltic or andesitic composition cool quickly.
Alexis Debut, Theofilos Toulkeridis, Andrea V. Vaca, Carlos R. Arroyo   +3 more
doaj   +1 more source

Dynamics and Deposits of Pyroclastic Density Currents in Magmatic and Phreatomagmatic Eruptions Revealed by a Two‐Layer Depth‐Averaged Model

Geophysical Research Letters, 2023
A pyroclastic density current (PDC) is characterized by its strong stratification of particle concentration; it consists of upper dilute and lower dense currents, which generally control the dynamics and deposits of PDCs, respectively.
Hiroyuki A. Shimizu, Takehiro Koyaguchi, Yujiro J. Suzuki   +2 more
doaj   +1 more source

Quantifying Microstructural Evolution in Moving Magma

Frontiers in Earth Science, 2020
Many of the grand challenges in volcanic and magmatic research are focused on understanding the dynamics of highly heterogeneous systems and the critical conditions that enable magmas to move or eruptions to initiate.
Katherine J. Dobson, Katherine J. Dobson, Anja Allabar, Eloise Bretagne, Jason Coumans, Mike Cassidy, Corrado Cimarelli, Rebecca Coats, Thomas Connolley, Loic Courtois, Donald B. Dingwell, Danilo Di Genova, Danilo Di Genova, Benjamin Fernando, Julie L. Fife, Frey Fyfe, Stephan Gehne, Thomas Jones, Thomas Jones, Jackie E. Kendrick, Helen Kinvig, Stephan Kolzenburg, Stephan Kolzenburg, Yan Lavallée, Emma Liu, Edward W. Llewellin, Amber Madden-Nadeau, Kamel Madi, Federica Marone, Cerith Morgan, Julie Oppenheimer, Anna Ploszajski, Gavin Reid, Jenny Schauroth, Jenny Schauroth, Christian M. Schlepütz, Catriona Sellick, Jérémie Vasseur, Felix W. von Aulock, Fabian B. Wadsworth, Fabian B. Wadsworth, Sebastian Wiesmaier, Kaz Wanelik   +42 more
doaj   +1 more source

The Medial Offshore Record of Explosive Volcanism Along the Central to Eastern Aegean Volcanic Arc: 1. Tephrostratigraphic Correlations

Geochemistry, Geophysics, Geosystems, 2021
The Milos, Christiana‐Santorini‐Kolumbo (CSK) and Kos‐Yali‐Nisyros (KYN) volcanic complexes of the Aegean Volcanic Arc have repeatedly produced highly explosive eruptions from at least ∼360 ka into historic times and still show recent unrest.
S. Kutterolf, A. Freundt, T. H. Hansteen, R. Dettbarn, F. Hampel, C. Sievers, C. Wittig, S. R. Allen, T. H. Druitt, J. McPhie, P. Nomikou, K. Pank, J. C. Schindlbeck‐Belo, K.‐L. Wang, H.‐Y. Lee, B. Friedrichs   +15 more
doaj   +1 more source