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  1. No Access

    Article

    Caldera formation in the Rum Central Igneous Complex, Scotland

    The Northern Marginal Zone of the Rum Central Igneous Complex in NW Scotland represents part of the early, felsic phase of the volcano. The marginal zone is a relic of the early caldera floor and the infillin...

    Valentin R. Troll, C. Henry Emeleus, Colin H. Donaldson in Bulletin of Volcanology (2000)

  2. No Access

    Article

    Formation of caldera periphery faults: an experimental study

    Changing stresses in multi-stage caldera volcanoes were simulated in scaled analogue experiments aiming to reconstruct the mechanism(s) associated with caldera formation and the corresponding zones of structur...

    Thomas R. Walter, Valentin R. Troll in Bulletin of Volcanology (2001)

  3. No Access

    Article

    Large-scale failures on domes and stratocones situated on caldera ring faults: sand-box modeling of natural examples from Kamchatka, Russia

    Edifices of stratocones and domes are often situated eccentrically above shallow silicic magma reservoirs. Evacuation of such reservoirs forms collapse calderas commonly surrounded by remnants of one or severa...

    Alexander Belousov, Thomas R. Walter, Valentin R. Troll in Bulletin of Volcanology (2005)

  4. No Access

    Article

    Analogue models of caldera collapse in strike-slip tectonic regimes

    Regional-scale faulting, particularly in strike-slip tectonic regimes, is a relatively poorly constrained factor in the formation of caldera volcanoes. To examine interactions between structures associated wit...

    Eoghan P. Holohan, Benjamin van Wyk de Vries, Valentin R. Troll in Bulletin of Volcanology (2008)

  5. No Access

    Article

    The structure and morphology of the Basse Terre Island, Lesser Antilles volcanic arc

    Basse Terre Island is made up of a cluster of composite volcanoes that are part of the Lesser Antilles volcanic arc. The morphology of these volcanoes and the onshore continuation of the grabens and strike–sli...

    Lucie Mathieu, Benjamin van Wyk de Vries, Claire Mannessiez… in Bulletin of Volcanology (2013)

  6. No Access

    Article

    Whole-rock oxygen isotope ratios as a proxy for the strength and stiffness of hydrothermally altered volcanic rocks

    Hydrothermal alteration is considered to increase the likelihood of dome or flank collapse by compromising stability. Understanding how such alteration influences rock properties, and providing independent met...

    Michael J. Heap, Valentin R. Troll, Chris Harris, H. Albert Gilg… in Bulletin of Volcanology (2022)

  7. Article

    Open Access

    Water in clinopyroxene from the 2021 Geldingadalir eruption of the Fagradalsfjall Fires, SW-Iceland

    Water content plays a significant role in magma genesis, ascent rate, and, ultimately, in the style and intensity of volcanic eruptions, due to its control on the density, viscosity and melting behaviour of si...

    Ioana-Bogdana Radu, Henrik Skogby, Valentin R. Troll… in Bulletin of Volcanology (2023)

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