Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile

The 2008 eruption of Chaitén Volcano was widely cited as the first activity at the volcano for over 9000 years. However, we have identified evidence from proximal pyroclastic deposits for three additional explosive eruptions of Chaitén within the past 5000 years. Chaitén has therefore produced at le...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Watt,Sebastian F.L, Pyle,David M, Mather,Tamsin A
Lenguaje:	English
Publicado:	Servicio Nacional de Geología y Minería (SERNAGEOMIN) 2013
Materias:	Chaitén Volcano Andean southern volcanic zone Holocene tephra stratigraphy Rhyolite Explosive volcanism
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062013000200002
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-71062013000200002
record_format	dspace
spelling	oai:scielo:S0718-710620130002000022013-07-31Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, ChileWatt,Sebastian F.LPyle,David MMather,Tamsin A Chaitén Volcano Andean southern volcanic zone Holocene tephra stratigraphy Rhyolite Explosive volcanism The 2008 eruption of Chaitén Volcano was widely cited as the first activity at the volcano for over 9000 years. However, we have identified evidence from proximal pyroclastic deposits for three additional explosive eruptions of Chaitén within the past 5000 years. Chaitén has therefore produced at least five explosive eruptions in the Holocene, making it among the most active volcanoes, in terms of explosive output, in the southern part of the Andean Southern Volcanic Zone. All of the five identified Holocene explosive eruptions produced homogeneous high-silica rhyolite, with near identical compositions. Based on our pyroclastic sequence, we suggest that the largest-volume Holocene eruption of Chaitén occurred at -4.95 ka, and we correlate this with the Mic2 deposit, which was previously thought to originate from the nearby Michinmahuida Volcano.info:eu-repo/semantics/openAccessServicio Nacional de Geología y Minería (SERNAGEOMIN)Andean geology v.40 n.2 20132013-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062013000200002en10.5027/andgeoV40n2-a02
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chaitén Volcano Andean southern volcanic zone Holocene tephra stratigraphy Rhyolite Explosive volcanism
spellingShingle	Chaitén Volcano Andean southern volcanic zone Holocene tephra stratigraphy Rhyolite Explosive volcanism Watt,Sebastian F.L Pyle,David M Mather,Tamsin A Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile
description	The 2008 eruption of Chaitén Volcano was widely cited as the first activity at the volcano for over 9000 years. However, we have identified evidence from proximal pyroclastic deposits for three additional explosive eruptions of Chaitén within the past 5000 years. Chaitén has therefore produced at least five explosive eruptions in the Holocene, making it among the most active volcanoes, in terms of explosive output, in the southern part of the Andean Southern Volcanic Zone. All of the five identified Holocene explosive eruptions produced homogeneous high-silica rhyolite, with near identical compositions. Based on our pyroclastic sequence, we suggest that the largest-volume Holocene eruption of Chaitén occurred at -4.95 ka, and we correlate this with the Mic2 deposit, which was previously thought to originate from the nearby Michinmahuida Volcano.
author	Watt,Sebastian F.L Pyle,David M Mather,Tamsin A
author_facet	Watt,Sebastian F.L Pyle,David M Mather,Tamsin A
author_sort	Watt,Sebastian F.L
title	Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile
title_short	Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile
title_full	Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile
title_fullStr	Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile
title_full_unstemmed	Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile
title_sort	evidence of mid- to iate-holocene explosive rhyolitic eruptions from chaitén volcano, chile
publisher	Servicio Nacional de Geología y Minería (SERNAGEOMIN)
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062013000200002
work_keys_str_mv	AT wattsebastianfl evidenceofmidtoiateholoceneexplosiverhyoliticeruptionsfromchaitenvolcanochile AT pyledavidm evidenceofmidtoiateholoceneexplosiverhyoliticeruptionsfromchaitenvolcanochile AT mathertamsina evidenceofmidtoiateholoceneexplosiverhyoliticeruptionsfromchaitenvolcanochile
_version_	1714205839531704320

Evidence of mid- to Iate-Holocene explosive rhyolitic eruptions from Chaitén Volcano, Chile

Ejemplares similares