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dc.contributor.author
Rojas, Andrés
dc.contributor.author
Sruoga, Patricia
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dc.contributor.author
Lamberti, María Clara Isabel
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dc.contributor.author
Agusto, Mariano Roberto
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dc.contributor.author
Tondreau, Jasson
dc.contributor.author
Mendoza, Nicolás
dc.contributor.author
Daniele, Linda
dc.contributor.author
Morata, Diego
dc.date.available
2022-08-18T15:21:24Z
dc.date.issued
2022-04
dc.identifier.citation
Rojas, Andrés; Sruoga, Patricia; Lamberti, María Clara Isabel; Agusto, Mariano Roberto; Tondreau, Jasson; et al.; Unravelling the hydrothermal system of Laguna del Maule restless volcanic field, in the Andean Southern Volcanic Zone (36° 10′S); Elsevier Science; Journal of Volcanology and Geothermal Research; 424; 107498; 4-2022; 1-17
dc.identifier.issn
0377-0273
dc.identifier.uri
http://hdl.handle.net/11336/166008
dc.description.abstract
Laguna del Maule Volcanic Field (LdMVF, 36° 10′ S), located in the Southern Andean Volcanic Zone, concentrates an extraordinary postglacial (<25 ka) rhyolitic volcanism and records one of the highest world rates of surface uplift (>20 cm/yr since 2007). Different papers have been published concerning magmatism and geophysical survey but no research has been performed concerning the associated hydrothermal system present in the area. In this work, we analyze both past and present-day hydrothermal manifestations present in the LdMVF. Seven hydrothermal fossil alteration zones were described, with different mineral assemblages suggesting paleo-fluids temperatures ranging between 150 °C - 250 °C for hydrothermal alteration. Additionally, five active fluid discharge zones were also recognized. Based on their spatial distribution, and new data on surficial water/gas geochemistry including stable isotopic composition (δ18O-δD-H2O and δ13C-CO2), the Laguna del Maule Hydrothermal System is here defined. A conceptual two-layer model is proposed, which consists in a deep reservoir with estimated temperature of 178 °C -195 °C and over this a shallow aquifer system with temperature of 116 °C -143 °C. Water composition from outflow zones revealed fluid-rock interaction, due to carbonates and sulphates dissolution of Mesozoic sedimentary units. The upflow fluid discharges, which are spatially coincident with the ongoing surface uplift, provides geochemical evidence of deep origin, and consequently the arrival of fluids capable of increasing pressure in the upper crust. The spatial distribution of both past and present hydrothermal manifestations suggests a strong structural control promoting fluid circulation due to enhanced permeability, throughout the entire lifetime of the volcanic field.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
FLUID CHEMISTRY
dc.subject
HYDROTHERMAL ALTERATION
dc.subject
LAGUNA DEL MAULE, ANDES
dc.subject
VOLCANIC-HYDROTHERMAL SYSTEM
dc.subject.classification
Vulcanología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Unravelling the hydrothermal system of Laguna del Maule restless volcanic field, in the Andean Southern Volcanic Zone (36° 10′S)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-07-04T19:30:24Z
dc.journal.volume
424
dc.journal.number
107498
dc.journal.pagination
1-17
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rojas, Andrés. Universidad de Chile; Chile
dc.description.fil
Fil: Sruoga, Patricia. Secretaría de Industria y Minería. Servicio Geológico Minero Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Lamberti, María Clara Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
dc.description.fil
Fil: Agusto, Mariano Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
dc.description.fil
Fil: Tondreau, Jasson. Universidad de Chile; Chile
dc.description.fil
Fil: Mendoza, Nicolás. Universidad de Chile; Chile
dc.description.fil
Fil: Daniele, Linda. Universidad de Chile.; Chile
dc.description.fil
Fil: Morata, Diego. Universidad de Chile.; Chile
dc.journal.title
Journal of Volcanology and Geothermal Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jvolgeores.2022.107498
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0377027322000294
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