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dc.contributor.authorFarnsworth, Wesley Randall
dc.contributor.authorBlake Jr., Wesley
dc.contributor.authorGudmundsdottir, Esther Ruth
dc.contributor.authorIngólfsson, Ólafur
dc.contributor.authorLarsen, Gudrún
dc.contributor.authorÓladóttir, Bergrún Arna
dc.contributor.authorSchomacker, Anders
dc.date.accessioned2020-10-28T13:07:53Z
dc.date.available2020-10-28T13:07:53Z
dc.date.issued2020-10-24
dc.description.abstractDistally deposited tephra from explosive volcanic eruptions can be a powerful tool for precise dating and correlation of sedimentary archives and landforms. However, the morphostratigraphic and chronological potential of ocean-rafted pumice has been under-utilized considering its long observational history and widespread distribution on modern and palaeo-shorelines around the world. Here we analyze the geochemical composition and elevation data of 60 samples of ocean-rafted pumice collected since 1958 from raised beaches on Svalbard. Comparison of pumice data with postglacial relative sea-level history suggests eight distinct pumice rafting events throughout the North Atlantic during the Middle and Late Holocene. Analyzed ocean-rafted pumice exhibit consistent silicic composition characteristic of deposits from Iceland’s volcanic system, Katla. Eruption-triggered jökulhlaups are key drivers of the transport of pumice from the Katla caldera to beyond the coast of Iceland and into the surface currents of the North Atlantic Ocean. Thus, the correlation of distinct, high-concentration pumice horizons from Katla deposited along raised Middle Holocene beach ridges in Svalbard further advocates for the persistence of the Mýrdalsjökull ice cap through the Holocene thermal maximum.en_US
dc.identifier.citationFarnsworth, Blake Jr., Gudmundsdottir, Ingólfsson, Larsen, Óladóttir, Schomacker. Ocean-rafted pumice constrains postglacial relative sea-level and supports Holocene ice cap survival. Quaternary Science Reviews. 2020en_US
dc.identifier.cristinIDFRIDAID 1842026
dc.identifier.doi10.1016/j.quascirev.2020.106654
dc.identifier.issn0277-3791
dc.identifier.issn1873-457X
dc.identifier.urihttps://hdl.handle.net/10037/19692
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalQuaternary Science Reviews
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2020 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450en_US
dc.titleOcean-rafted pumice constrains postglacial relative sea-level and supports Holocene ice cap survivalen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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