Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/15060
DC Field | Value | Language |
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dc.date.accessioned | 2021-12-14T09:25:07Z | - |
dc.date.available | 2021-12-14T09:25:07Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | http://hdl.handle.net/2122/15060 | - |
dc.description.abstract | We present a full characterization of a 20 cm-thick tephra layer found intercalated in the marine sediments recovered at Site U1524 during International Ocean Discovery Program (IODP) Expedition 374, in the Ross Sea, Antarctica. Tephra bedforms, mineral paragenesis, and major- and trace element composition on individual glass shards were investigated and the tephra age was constrained by 40Ar-39Ar on sanidine crystals. The 40Ar-39Ar data indicate that sanidine grains are variably contaminated by excess Ar, with the best age estimate of 1.282 ± 0.012 Ma, based on both single-grain total fusion analyses and step-heating experiments on multi-grain aliquots. The tephra is characterized by a very homogeneous rhyolitic composition and a peculiar mineral assemblage, dominated by sanidine, quartz, and minor aenigmatite and arfvedsonite-riebeckite amphiboles. The tephra from Site U1524 compositionally matches with a ca. 1.3 Ma, rhyolitic pumice fall deposit on the rim of the Chang Peak volcano summit caldera, in the Marie Byrd Land, located ca. 1,300 km from Site U1524. This contribution offers important volcanological data on the eruptive history of Chang Peak volcano and adds a new tephrochronologic marker for the dating, correlation, and synchronization of marine and continental early Pleistocene records of West Antarctica. | en_US |
dc.language.iso | English | en_US |
dc.publisher.name | Wiley-AGU | en_US |
dc.relation.ispartof | Geochemistry, Geophysics, Geosystems | en_US |
dc.relation.ispartofseries | /22 (2021) | en_US |
dc.rights | CC0 1.0 Universal | * |
dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | * |
dc.title | Tephrochronology and Provenance of an Early Pleistocene (Calabrian) Tephra From IODP Expedition 374 Site U1524, Ross Sea (Antarctica) | en_US |
dc.type | article | en |
dc.description.status | Published | en_US |
dc.type.QualityControl | Peer-reviewed | en_US |
dc.description.pagenumber | e2021GC009739 | en_US |
dc.identifier.doi | 10.1029/2021GC009739 | en_US |
dc.description.obiettivoSpecifico | 1V. Storia eruttiva | en_US |
dc.description.journalType | JCR Journal | en_US |
dc.contributor.author | Di Roberto, Alessio | - |
dc.contributor.author | Scateni, Bianca | - |
dc.contributor.author | Di Vincenzo, Gianfranco | - |
dc.contributor.author | Petrelli, Maurizio | - |
dc.contributor.author | Fisauli, Giulia | - |
dc.contributor.author | Barker, Simon J | - |
dc.contributor.author | Del Carlo, Paola | - |
dc.contributor.author | Colleoni, Florence | - |
dc.contributor.author | Kulhanek, Denise | - |
dc.contributor.author | McKay, Robert | - |
dc.contributor.author | De Santis, Laura | - |
dc.contributor.author | The IODP Expedition 374 Scientific Party, . | - |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | en_US |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | en_US |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | IGG CNR Pisa | - |
crisitem.author.dept | Department of Physics and Geology, University of Perugia, Piazza dell’Università 1, 06123 Perugia, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Antarctic Research Centre, Victoria University of Wellington, PO Box 600, Wellington, New Zealand | - |
crisitem.author.dept | Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS | - |
crisitem.author.dept | 0 | - |
crisitem.author.orcid | 0000-0003-1167-8290 | - |
crisitem.author.orcid | 0000-0003-3592-6113 | - |
crisitem.author.orcid | 0000-0002-9669-9789 | - |
crisitem.author.orcid | 0000-0001-6956-4742 | - |
crisitem.author.orcid | 0000-0001-6494-2847 | - |
crisitem.author.orcid | 0000-0002-3090-1403 | - |
crisitem.author.orcid | 0000-0001-5506-4579 | - |
crisitem.author.orcid | 0000-0003-4582-812X | - |
crisitem.author.orcid | 0000-0002-2156-6383 | - |
crisitem.author.orcid | 0000-0002-5602-6985 | - |
crisitem.author.orcid | 0000-0002-7752-7754 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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44 G-Cubed - Tephrochronology and Provenance of an Early Pleistocene (Calabrian) Tephra From IODP Expedition 374 Site U1524, Ross Sea (Antarctica).pdf | Open Access published article | 6.02 MB | Adobe PDF | View/Open |
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