Výsledky vyhledávání - "Răzvan-Gabriel Popa"

Explosive or effusive style of volcanic eruption determined by magma storage conditions

Autor: Christian Huber, Răzvan-Gabriel Popa, Olivier Bachmann

Publikováno v: Nature Geoscience, 14 (10)

Most volcanoes erupt both effusively and explosively, with explosive behaviour being responsible for most human fatalities. Eruption style is thought to be strongly controlled by fast conduit processes, limiting our ability for prediction. Here we ad

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab666537d33232a0191f7ddf27ba6f3b
https://hdl.handle.net/20.500.11850/509322

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Water exsolution in the magma chamber favors effusive eruptions: Application of Cl-F partitioning behavior at the Nisyros-Yali volcanic area

Autor: Ben S. Ellis, Julien M. Allaz, Peter Tollan, Vanessa Schenker, Olivier Bachmann, Răzvan-Gabriel Popa

Publikováno v: Chemical Geology, 570

Changes from effusive to explosive behavior are common during single eruptive events. However, in many cases these shifts are recorded between distinct eruptions, separated by periods of volcanic repose. In the quiescent periods, magma chamber proces

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bea0b76a6ba5badef20f7efc83e3ebc
https://hdl.handle.net/20.500.11850/475849

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Effusive-explosive transitions of water-undersaturated magmas. The case study of Methana Volcano, South Aegean Arc

Autor: Răzvan-Gabriel Popa, Volker J. Dietrich, Olivier Bachmann

Publikováno v: Journal of Volcanology and Geothermal Research, 399

Most arc volcanoes erupt intermediate to silicic magmas that have sufficient volatile contents to behave explosively. Despite this explosive potential, low-energy effusive eruptions of such viscous water-rich magmas are common occurrences. Hence, pre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f481ca751000d25c4670f2620c08329b
https://hdl.handle.net/20.500.11850/417000

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A connection between magma chamber processes and eruptive styles revealed at Nisyros-Yali volcano (Greece)

Autor: Konstantinos Kyriakopoulos, Olivier Bachmann, Peter Tollan, Wim Degruyter, Ben S. Ellis, Răzvan-Gabriel Popa

Publikováno v: Journal of Volcanology and Geothermal Research, 387 . Art.Nr. 106666.

Highlights • In water-rich silicic systems effusions can be generated by magmas with higher water contents than explosions. • The paper presents the comparative example of effusive and explosive deposits erupted at Nisyros-Yali. • Explosive eru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::300671e3612eb19f5b1d5dd51a83d452
https://orca.cardiff.ac.uk/id/eprint/125517/1/Popa_etal_2019_JVGR_postprint.pdf

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U-Th zircon dating reveals a correlation between eruptive styles and repose periods at the Nisyros-Yali volcanic area, Greece

Autor: Ben S. Ellis, Olivier Bachmann, Răzvan-Gabriel Popa, Marcel Guillong, Dawid Szymanowski

Publikováno v: Chemical Geology. 555:119830

Water-rich silicic magmas are capable of erupting effusively and explosively, and this drastic change in eruptive styles, termed effusive-explosive transition, has important implications in managing volcanic hazards. Some volcanoes exhibit effusive-e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::197a780cf60a56a95588273cef3d773b
https://doi.org/10.1016/j.chemgeo.2020.119830

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