Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/153455
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dc.contributor.authorCheng, Liluen_US
dc.contributor.authorCosta, Fidelen_US
dc.date.accessioned2021-12-27T08:28:51Z-
dc.date.available2021-12-27T08:28:51Z-
dc.date.issued2019-
dc.identifier.citationCheng, L. & Costa, F. (2019). Statistical analysis of crystal populations and links to volcano deformation for more robust estimates of magma replenishment volumes. Geology, 47(12), 1171-1175. https://dx.doi.org/10.1130/G46826.1en_US
dc.identifier.issn0091-7613en_US
dc.identifier.urihttps://hdl.handle.net/10356/153455-
dc.description.abstractForecasting the timing and size of volcanic eruptions requires a proper interpretation of multiparametric monitoring signals. Studies of the erupted rocks can provide critical information on the processes and volcano plumbing system that is needed to decode the monitoring signals. Here we present the results of a petrological study of plagioclase phenocrysts using a new statistical approach that allows us to estimate the amount of intruded magma before eruption. Our crystal population analysis of the 2006 and 2010 CE Merapi volcano (Indonesia) eruptions shows that ~60 ± 20 vol% of the 2010 magma was left over from the 2006 magma, and thus ~40 ± 20 vol% was newly intruded magma. Using the published values of the 2010 erupted magma volume, this corresponds to >8 to 20 (±7) x 106 m3 of new magma. This is a minimum estimate and is similar to the inferred pre-eruptive deformation volume (18 x 106 m3), although given the uncertainties, several million cubic meters of magma intruded in 2010 could still be in the Merapi plumbing system. Our approach could be used at other volcanoes to quantify the volume of intruded magma and thus help in better understanding the unrest signals that anticipate eruptions.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relationNRF-NRFI2017-06en_US
dc.relation.ispartofGeologyen_US
dc.relation.uri10.21979/N9/TEGP3Ken_US
dc.rights© 2019 The Authors. Gold Open Access: This paper is published under the terms of the CC-BY license.en_US
dc.subjectScience::Geologyen_US
dc.titleStatistical analysis of crystal populations and links to volcano deformation for more robust estimates of magma replenishment volumesen_US
dc.typeJournal Articleen
dc.contributor.schoolAsian School of the Environmenten_US
dc.contributor.researchEarth Observatory of Singaporeen_US
dc.identifier.doi10.1130/G46826.1-
dc.description.versionPublished versionen_US
dc.identifier.scopus2-s2.0-85077984813-
dc.identifier.issue12en_US
dc.identifier.volume47en_US
dc.identifier.spage1171en_US
dc.identifier.epage1175en_US
dc.subject.keywordsStorage-Conditionsen_US
dc.subject.keywordsEruptionen_US
dc.description.acknowledgementThis research is supported by the National Research Foundation of Singapore and the Singapore Ministry of Education under the Research Centres of Excellence initiative, and a National Research Foundation of Singapore Investigatorship Award (NRF-NRFI2017-06) to F.C.en_US
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