Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system
The architecture of a mush-dominated plumbing system in active volcanic areas conditions the magma pathways feeding eruptions. Open-system processes along these pathways and the associated time scales are directly related to monitoring data and eruptive behavior. Despite crystal mush–dominated syste...
| Autores: | , , , , , , |
|---|---|
| Tipo de documento: | artigo |
| Estado: | Versión aceptada para publicación |
| Data de publicação: | 2022 |
| País: | España |
| Recursos: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositório: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/226522 |
| Acesso em linha: | https://hdl.handle.net/2445/226522 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Vulcanisme Magmatisme Petrologia Roques ígnies Geoquímica Volcanism Magmatism Petrology Igneous rocks Geochemistry |
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Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing systemSpiess, RichardAlbert Mínguez, HelenaTrua, TeresaFonseca, JoséMarani, Michael P.Gamberi, FabianoMarzoli, AndreaVulcanismeMagmatismePetrologiaRoques ígniesGeoquímicaVolcanismMagmatismPetrologyIgneous rocksGeochemistryThe architecture of a mush-dominated plumbing system in active volcanic areas conditions the magma pathways feeding eruptions. Open-system processes along these pathways and the associated time scales are directly related to monitoring data and eruptive behavior. Despite crystal mush–dominated systems being common in active volcanoes, previous studies have not focused on the integration of data from the mush sectors feeding different eruptions, supplying a partial view of the pre-eruptive magmatic processes and hindering the interpretation of the monitoring signals during unrest periods. We focus on the Marsili seamount (Tyrrhenian Sea), where the mineral data document processes within a magmatic system vertically extended throughout the local oceanic crust and made of a mush framework spotted with eruptible melt- and crystal-rich pockets. We undertook a study of Marsili olivine crystals that constrains the time scales of three pre-eruptive scenarios, dominated by open-system processes: (1) disaggregation of the deep Marsili volcano mush zone that occurred over a time scale of years prior to the eruption; (2) rapid ascent (days) of mantle-derived basaltic magma that, in some cases, intercepts shallow plagioclase-rich pockets; and (3) multiple mixing events between melt- and crystal-rich mush zones occurring approximately 1–2 mo and 0.5–3 yr before the eruption. Our results highlight the importance of contemporaneously studying eruptions in different locations on a volcano edifice for a better comprehension on how mush-dominated plumbing systems work as a whole and how this must be considered during the interpretation of monitoring data.Geological Society of America2026202620222026info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion13 p.application/pdfhttps://hdl.handle.net/2445/226522Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1130/G49934.1Geology, 2022, vol. 50, num.8, p. 869-873https://doi.org/10.1130/G49934.1(c) Geological Society of America, 2022info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2265222026-05-29T05:05:01Z |
| dc.title.none.fl_str_mv |
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system |
| title |
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system |
| spellingShingle |
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system Spiess, Richard Vulcanisme Magmatisme Petrologia Roques ígnies Geoquímica Volcanism Magmatism Petrology Igneous rocks Geochemistry |
| title_short |
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system |
| title_full |
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system |
| title_fullStr |
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system |
| title_full_unstemmed |
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system |
| title_sort |
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system |
| dc.creator.none.fl_str_mv |
Spiess, Richard Albert Mínguez, Helena Trua, Teresa Fonseca, José Marani, Michael P. Gamberi, Fabiano Marzoli, Andrea |
| author |
Spiess, Richard |
| author_facet |
Spiess, Richard Albert Mínguez, Helena Trua, Teresa Fonseca, José Marani, Michael P. Gamberi, Fabiano Marzoli, Andrea |
| author_role |
author |
| author2 |
Albert Mínguez, Helena Trua, Teresa Fonseca, José Marani, Michael P. Gamberi, Fabiano Marzoli, Andrea |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
Vulcanisme Magmatisme Petrologia Roques ígnies Geoquímica Volcanism Magmatism Petrology Igneous rocks Geochemistry |
| topic |
Vulcanisme Magmatisme Petrologia Roques ígnies Geoquímica Volcanism Magmatism Petrology Igneous rocks Geochemistry |
| description |
The architecture of a mush-dominated plumbing system in active volcanic areas conditions the magma pathways feeding eruptions. Open-system processes along these pathways and the associated time scales are directly related to monitoring data and eruptive behavior. Despite crystal mush–dominated systems being common in active volcanoes, previous studies have not focused on the integration of data from the mush sectors feeding different eruptions, supplying a partial view of the pre-eruptive magmatic processes and hindering the interpretation of the monitoring signals during unrest periods. We focus on the Marsili seamount (Tyrrhenian Sea), where the mineral data document processes within a magmatic system vertically extended throughout the local oceanic crust and made of a mush framework spotted with eruptible melt- and crystal-rich pockets. We undertook a study of Marsili olivine crystals that constrains the time scales of three pre-eruptive scenarios, dominated by open-system processes: (1) disaggregation of the deep Marsili volcano mush zone that occurred over a time scale of years prior to the eruption; (2) rapid ascent (days) of mantle-derived basaltic magma that, in some cases, intercepts shallow plagioclase-rich pockets; and (3) multiple mixing events between melt- and crystal-rich mush zones occurring approximately 1–2 mo and 0.5–3 yr before the eruption. Our results highlight the importance of contemporaneously studying eruptions in different locations on a volcano edifice for a better comprehension on how mush-dominated plumbing systems work as a whole and how this must be considered during the interpretation of monitoring data. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022 2026 2026 2026 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion |
| format |
article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/226522 |
| url |
https://hdl.handle.net/2445/226522 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Versió postprint del document publicat a: https://doi.org/10.1130/G49934.1 Geology, 2022, vol. 50, num.8, p. 869-873 https://doi.org/10.1130/G49934.1 |
| dc.rights.none.fl_str_mv |
(c) Geological Society of America, 2022 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
(c) Geological Society of America, 2022 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
13 p. application/pdf |
| dc.publisher.none.fl_str_mv |
Geological Society of America |
| publisher.none.fl_str_mv |
Geological Society of America |
| dc.source.none.fl_str_mv |
Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) reponame:Recercat. Dipósit de la Recerca de Catalunya instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
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Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| reponame_str |
Recercat. Dipósit de la Recerca de Catalunya |
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Recercat. Dipósit de la Recerca de Catalunya |
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1869422286169178112 |
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15.198674 |