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Dr Ralf Gertisser's Outputs (61)

A record of magmatic differentiation in plutonic xenoliths from Santorini (Greece) (2024)
Journal Article
Whitley, S., Halama, R., Gertisser, R., Hansteen, T. H., Frische, M., & Vennemann, T. (2024). A record of magmatic differentiation in plutonic xenoliths from Santorini (Greece). Volcanica, 7(2), https://doi.org/10.30909/vol.07.02.421446

Plutonic xenoliths from volcanic arcs provide unique insights into transcrustal magmatic systems in subduction zone settings. At Santorini volcano in the Central Aegean Volcanic Arc (Greece), plutonic xenoliths occur throughout a sequence of lavas an... Read More about A record of magmatic differentiation in plutonic xenoliths from Santorini (Greece).

Magma recharge in persistently active basaltic–andesite systems and its geohazards implications: the case of Villarrica volcano, Chile (2024)
Journal Article
Cortés, J. A., Gertisser, R., & Calder, E. S. (2024). Magma recharge in persistently active basaltic–andesite systems and its geohazards implications: the case of Villarrica volcano, Chile. International Journal of Earth Sciences, 113, 1145–1163. https://doi.org/10.1007/s00531-024-02414-w

We report whole-rock chemistry, mineral chemistry, and volatile content from Villarrica volcano’s major recent paroxysms and background activity. Composition of the volcanic products are basalt to basaltic andesite with whole-rock SiO2 content betwee... Read More about Magma recharge in persistently active basaltic–andesite systems and its geohazards implications: the case of Villarrica volcano, Chile.

Hazardous explosive eruptions of a recharging multi-cyclic island arc caldera (2024)
Journal Article
Preine, J., Karstens, J., Hübscher, C., Druitt, T., Kutterolf, S., Nomikou, P., …Papanikolaou, D. (2024). Hazardous explosive eruptions of a recharging multi-cyclic island arc caldera. Nature Geoscience, 17(4), 323-331. https://doi.org/10.1038/s41561-024-01392-7

Caldera-forming eruptions of silicic volcanic systems are among the most devastating events on Earth. By contrast, post-collapse volcanic activity initiating new caldera cycles is generally considered less hazardous. Formed after Santorini’s latest c... Read More about Hazardous explosive eruptions of a recharging multi-cyclic island arc caldera.

Giant offshore pumice deposit records a shallow submarine explosive eruption of ancestral Santorini (2024)
Journal Article
Druitt, T., Kutterolf, S., Ronge, T. A., Hübscher, C., Nomikou, P., Preine, J., …Lee, H. (2024). Giant offshore pumice deposit records a shallow submarine explosive eruption of ancestral Santorini. Communications Earth & Environment, 5(1), Article 24. https://doi.org/10.1038/s43247-023-01171-z

Large explosive volcanic eruptions from island arcs pour pyroclastic currents into marine basins, impacting ecosystems and generating tsunamis that threaten coastal communities and infrastructures. Risk assessments require robust records of such high... Read More about Giant offshore pumice deposit records a shallow submarine explosive eruption of ancestral Santorini.

Magma recharge and mush rejuvenation drive paroxysmal activity at Stromboli volcano (2022)
Journal Article
Maria Petrone, C., Mollo, S., Gertisser, R., Buret, Y., Scarlato, P., Del Bello, E., …Reagan, M. (2022). Magma recharge and mush rejuvenation drive paroxysmal activity at Stromboli volcano. Nature communications, 13(1), Article 7717. https://doi.org/10.1038/s41467-022-35405-z

Open-conduit basaltic volcanoes can be characterised by sudden large explosive events (paroxysms) that interrupt normal effusive and mild explosive activity. In June-August 2019, one major explosion and two paroxysms occurred at Stromboli volcano (It... Read More about Magma recharge and mush rejuvenation drive paroxysmal activity at Stromboli volcano.

Eruptive Activity of the Santorini Volcano Controlled by Sea Level Rise and Fall (2021)
Journal Article
Gertisser. (2021). Eruptive Activity of the Santorini Volcano Controlled by Sea Level Rise and Fall. Nature Geoscience, https://doi.org/10.1038/s41561-021-00783-4

Sea-level change is thought to influence the frequencies of volcanic eruptions on glacial to interglacial timescales. However, the underlying physical processes and their importance relative to other influences (for example, magma recharge rates) rem... Read More about Eruptive Activity of the Santorini Volcano Controlled by Sea Level Rise and Fall.

Eruption Style, Emplacement Dynamics and Geometry of Peralkaline Ignimbrites: Insights From the Lajes-Angra Ignimbrite Formation, Terceira Island, Azores (2021)
Journal Article
Gertisser, R. (2021). Eruption Style, Emplacement Dynamics and Geometry of Peralkaline Ignimbrites: Insights From the Lajes-Angra Ignimbrite Formation, Terceira Island, Azores. Frontiers in Earth Science, https://doi.org/10.3389/feart.2021.673686

Ignimbrites are relatively uncommon on ocean island volcanoes and yet they constitute a significant portion of the stratigraphy of Terceira Island (Azores). The Lajes-Angra Ignimbrite Formation (ca. 25 cal ka BP) contains the youngest ignimbrites on... Read More about Eruption Style, Emplacement Dynamics and Geometry of Peralkaline Ignimbrites: Insights From the Lajes-Angra Ignimbrite Formation, Terceira Island, Azores.

Constraining the landscape of Late Bronze Age Santorini prior to the Minoan eruption: insights from volcanological, geomorphological and archaeological findings (2020)
Journal Article
Gertisser, R. (2020). Constraining the landscape of Late Bronze Age Santorini prior to the Minoan eruption: insights from volcanological, geomorphological and archaeological findings. Journal of Volcanology and Geothermal Research, https://doi.org/10.1016/j.jvolgeores.2020.106911

One of the best known places on Earth where volcanology meets archaeology and history is the volcanic island of Santorini (Thíra), Greece. It is famous for the cataclysmic Late Bronze Age (Minoan) Plinian eruption which destroyed the Minoan culture t... Read More about Constraining the landscape of Late Bronze Age Santorini prior to the Minoan eruption: insights from volcanological, geomorphological and archaeological findings.

Significant changes in the magma dynamics of Stromboli steady-state volcano recorded by clinopyroxene crystals. (2020)
Journal Article
Petrone, C. M., Di Stefano, F., Gertisser, R., Mollo, S., Tommasini, S., Del Bello, E., …Coltorti, M. (2020). Significant changes in the magma dynamics of Stromboli steady-state volcano recorded by clinopyroxene crystals. https://doi.org/10.5194/egusphere-egu2020-18109

<jats:p> &amp;lt;p&amp;gt;Steady-state volcanic activity implies equilibrium between the rate of magma replenishment and eruption of compositionally homogeneous magmas, lasting for tens to thousands of years in an open conduit system. The Present-day... Read More about Significant changes in the magma dynamics of Stromboli steady-state volcano recorded by clinopyroxene crystals..

Sr isotopes indicate millennial-scale formation of metal-rich layers by reactive melt percolation in an open-system layered intrusion (2020)
Journal Article
Daly, J. S., Hepworth, L., O'Driscoll, B., Johnson, C., Gertisser, R., & Emeleus, C. H. (2020). Sr isotopes indicate millennial-scale formation of metal-rich layers by reactive melt percolation in an open-system layered intrusion. https://doi.org/10.5194/egusphere-egu2020-20272

<jats:p> &amp;lt;p&amp;gt;In order to test whether the crystal mushes that form layered mafic intrusions can behave as open systems, we investigated mineral-scale textural, chemical and Sr isotopic heterogeneity in the c. 60 Ma Rum intrusion, Scotlan... Read More about Sr isotopes indicate millennial-scale formation of metal-rich layers by reactive melt percolation in an open-system layered intrusion.

Insights into the magma plumbing system of La Fossa di Vulcano (Aeolian Islands, Italy) using oxygen isotopes and clinopyroxene crystal structure (2020)
Journal Article
Wiltshire, R., Halama, R., Boyce, A., Petrone, C., Nazzareni, S., Gertisser, R., …Lucchi, F. (2020). Insights into the magma plumbing system of La Fossa di Vulcano (Aeolian Islands, Italy) using oxygen isotopes and clinopyroxene crystal structure. https://doi.org/10.5194/egusphere-egu2020-13433

<jats:p> &amp;lt;p&amp;gt;The presently active La Fossa cone, Vulcano, widely considered the most hazardous volcano in the Aeolian Islands, is characterised by alternating periods of Vulcanian to subplinian explosive events and lava flow effusion. It... Read More about Insights into the magma plumbing system of La Fossa di Vulcano (Aeolian Islands, Italy) using oxygen isotopes and clinopyroxene crystal structure.

Magmatic and metasomatic effects of magma-carbonate interaction recorded in calc-silicate xenoliths from Merapi volcano (Indonesia) (2020)
Journal Article
Halama, R., Gertisser, R., Whitley, S., Preece, K., Deegan, F., & Troll, V. (2020). Magmatic and metasomatic effects of magma-carbonate interaction recorded in calc-silicate xenoliths from Merapi volcano (Indonesia). Journal of Petrology, https://doi.org/10.1093/petrology/egaa048

Magma-carbonate interaction is an increasingly recognised process occurring at active volcanoes worldwide, with implications for the magmatic evolution of the host volcanic systems, their eruptive behaviour, volcanic CO2 budgets, and economic mineral... Read More about Magmatic and metasomatic effects of magma-carbonate interaction recorded in calc-silicate xenoliths from Merapi volcano (Indonesia).

Rapid crystallization of precious-metal-mineralized layers in mafic magmatic systems (2020)
Journal Article
Gertisser, Hepworth, L. N., Daly, J. S., Gertisser, R., Johnson, C. G., Emeleus, C. H., & O’Driscoll, B. (2020). Rapid crystallization of precious-metal-mineralized layers in mafic magmatic systems. Nature Geoscience, 13(5), 375–381. https://doi.org/10.1038/s41561-020-0568-3

The solidified remnants of mafic magmatic systems host the greatest concentrations of platinum-group metals in the Earth’s crust. Our understanding of precious-metal mineralization in these intrusive bodies is underpinned by a traditional view of mag... Read More about Rapid crystallization of precious-metal-mineralized layers in mafic magmatic systems.

Braided peridotite sills and metasomatism in the Rum Layered Suite, Scotland (2020)
Journal Article
Gertisser, R. (2020). Braided peridotite sills and metasomatism in the Rum Layered Suite, Scotland. Contributions to Mineralogy and Petrology, https://doi.org/10.1007/s00410-019-1652-9

The Rum Eastern Layered Intrusion (ELI; Scotland) is an open-system layered intrusion constructed of 16 macro-rhythmic units. Each of the macro-rhythmic units consists of a peridotite base and a troctolite (+/- gabbro) top, previously attributed to t... Read More about Braided peridotite sills and metasomatism in the Rum Layered Suite, Scotland.

Chromitite petrogenesis in the mantle section of the Ballantrae Ophiolite Complex (Scotland) (2019)
Journal Article
Gertisser, R. (2019). Chromitite petrogenesis in the mantle section of the Ballantrae Ophiolite Complex (Scotland). Lithos, 51-67. https://doi.org/10.1016/j.lithos.2019.06.013

Podiform chromitites from the Ballantrae Ophiolite Complex (BOC), NW Scotland, are examined to investigate their petrogenesis and elucidate the nature of melt percolation in the supra-subduction zone oceanic mantle more generally. The mantle portion... Read More about Chromitite petrogenesis in the mantle section of the Ballantrae Ophiolite Complex (Scotland).

Advancing Santorini’s tephrostratigraphy: new glass geochemical data and improved marine-terrestrial tephra correlations for the past ~360 kyrs (2019)
Journal Article
Gertisser, R. (2019). Advancing Santorini’s tephrostratigraphy: new glass geochemical data and improved marine-terrestrial tephra correlations for the past ~360 kyrs. Earth-Science Reviews, https://doi.org/10.1016/j.earscirev.2019.102964

The island of Santorini in the Aegean Sea is one of the world’s most violent active volcanoes. Santorini has produced numerous highly explosive eruptions over at least the past ~360 kyrs that are documented by the island’s unique proximal tephra reco... Read More about Advancing Santorini’s tephrostratigraphy: new glass geochemical data and improved marine-terrestrial tephra correlations for the past ~360 kyrs.

Crustal CO2 contribution to subduction zone degassing recorded through calc-silicate xenoliths in arc lavas (2019)
Journal Article
Whitley, S., Gertisser, R., Halama, R., Preece, K., R. Troll, V., & M. Deegan, F. (2019). Crustal CO2 contribution to subduction zone degassing recorded through calc-silicate xenoliths in arc lavas. Scientific reports, https://doi.org/10.1038/s41598-019-44929-2

Interaction between magma and crustal carbonate at active arc volcanoes has recently been proposed as a source of atmospheric CO2, in addition to CO2 released from the mantle and subducted oceanic crust. However, quantitative constraints on efciency... Read More about Crustal CO2 contribution to subduction zone degassing recorded through calc-silicate xenoliths in arc lavas.

Eruptive history of the Late Quaternary Ciomadul (Csomád) volcano, East Carpathians, part II: magma output rates (2019)
Journal Article
Gertisser, R. (2019). Eruptive history of the Late Quaternary Ciomadul (Csomád) volcano, East Carpathians, part II: magma output rates. Bulletin of Volcanology, https://doi.org/10.1007/s00445-019-1287-8

This study, which builds on high-precision unspiked Cassignol-Gillot K-Ar age determinations, presents an advanced DEMbased volumetrical analysis to infer long-term magma output rates for the Late Quaternary Ciomadul (Csomád) dacitic lava dome comple... Read More about Eruptive history of the Late Quaternary Ciomadul (Csomád) volcano, East Carpathians, part II: magma output rates.

Eruptive history of the Late Quaternary Ciomadul (Csomád) volcano, East Carpathians, Part I: Timing of lava dome activity (2019)
Journal Article
Gertisser. (2019). Eruptive history of the Late Quaternary Ciomadul (Csomád) volcano, East Carpathians, Part I: Timing of lava dome activity. Bulletin of Volcanology, https://doi.org/10.1007/s00445-019-1286-9

Located at the southern tip of the Intra-Carpathian Volcanic Range in Romania, and composed of a dozen dacitic lava domes, the Ciomadul (Csomád) volcanic complex is the youngest eruptive centre of the Carpatho-Pannonian Region. Whereas, in the last d... Read More about Eruptive history of the Late Quaternary Ciomadul (Csomád) volcano, East Carpathians, Part I: Timing of lava dome activity.