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dc.contributor.author
Guzman, Silvina Raquel
dc.contributor.author
Doronzo, Domenico M.
dc.contributor.author
Martí, Joan
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Seggiaro, Raúl
dc.date.available
2021-09-10T16:33:02Z
dc.date.issued
2020-07-15
dc.identifier.citation
Guzman, Silvina Raquel; Doronzo, Domenico M.; Martí, Joan; Seggiaro, Raúl; Characteristics and emplacement mechanisms of the Coranzulí ignimbrites (Central Andes); Elsevier Science; Sedimentary Geology; 405; 105699; 15-7-2020; 1-52
dc.identifier.issn
0037-0738
dc.identifier.uri
http://hdl.handle.net/11336/140101
dc.description.abstract
We present a detailed stratigraphy of the Coranzulí caldera-forming deposits. This caldera, located in the Altiplano-Puna Volcanic Complex (Central Andes), generated four ignimbrite deposits with similar field characteristics and facies that differ from each other in, above all, the nature of the lithic fragments they contain. Three different lithofacies (fine-grained cross-stratified facies, massive lithic breccia facies and massive ignimbrite facies) are found in all the ignimbrite deposits, which occasionally also contain a lenticular lithic-rich facies and/or a pumice-rich facies. These field characteristics and, in particular, local deposit thicknesses were used to develop a theoretical model of the dynamics and emplacement mode of the Coranzulí pyroclastic flows. Our results show that these ignimbrites were emplaced by dense pyroclastic density currents subjected to high accumulation rates and velocities, thereby indicating rapid en masse emplacement that was also influenced by local paleotopography as deduced from facies analysis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ALTIPLANO-PUNA VOLCANIC COMPLEX
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CENTRAL ANDES
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CORANZULÍ
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CRYSTAL-RICH IGNIMBRITES
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PUNA
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PYROCLASTIC DENSITY CURRENT
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Vulcanología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Characteristics and emplacement mechanisms of the Coranzulí ignimbrites (Central Andes)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-07T13:55:38Z
dc.journal.volume
405
dc.journal.number
105699
dc.journal.pagination
1-52
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Guzman, Silvina Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina
dc.description.fil
Fil: Doronzo, Domenico M.. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias de la Tierra Jaume Almera; España
dc.description.fil
Fil: Martí, Joan. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias de la Tierra Jaume Almera; España
dc.description.fil
Fil: Seggiaro, Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina
dc.journal.title
Sedimentary Geology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0037073820301147
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.sedgeo.2020.105699
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