Insights on the effects of the hydrothermal alteration in the El Laco magnetite deposit (Chile)
Congreso SEM-SEA 2012, reunión conjunta de las sociedades españolas de Mineralogía (XXXII Reunión) y Arcillas (XXII Reunión), celebrado en Bilbao entre el 27 y 30 de Junio de 2012 The understanding of the origin of the recent (ca. 2 Ma) El Laco deposit (Fig. 1), with near 1 Gt of almost pure magneti...
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Sociedad Española de Mineralogía
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ftcsic:oai:digital.csic.es:20.500.12468/407 2023-05-15T17:04:16+02:00 Insights on the effects of the hydrothermal alteration in the El Laco magnetite deposit (Chile) Velasco, Francisco Tornos Arroyo, Fernando El Laco, Chile 2020-09-25T12:11:24Z https://hdl.handle.net/20.500.12468/407 en eng Sociedad Española de Mineralogía #PLACEHOLDER_PARENT_METADATA_VALUE# CGL2011-23207 IT340-10 http://www.ehu.eus/sem/macla_pdf/macla16/Macla16_210.pdf Macla, n.16, 210-211 2659-9864 http://hdl.handle.net/20.500.12468/407 open El Laco yacimiento magnetita alteración hidrotermal Chile magnetite deposit hydrothermal alteration Postprint 2020 ftcsic https://doi.org/20.500.12468/407 2022-08-23T23:39:34Z Congreso SEM-SEA 2012, reunión conjunta de las sociedades españolas de Mineralogía (XXXII Reunión) y Arcillas (XXII Reunión), celebrado en Bilbao entre el 27 y 30 de Junio de 2012 The understanding of the origin of the recent (ca. 2 Ma) El Laco deposit (Fig. 1), with near 1 Gt of almost pure magnetite/hematite, is considered critical for the interpretation of the Kiruna type magnetite-apatite style of mineralization, an end-member of the IOCG group of deposits. Despite the abundant studies conducted in the last decades on El Laco, with little erosion, well preserved volcanic features and excellent conditions of exposure, there is no agreement between models that support a genesis related to the hydrothermal replacement of preexisting andesitic rocks (Rhodes & Oreskes, 1999; Rhodes et al., 1999) and those which interpret the deposit as magmatic flows and dikes product of the crystallization of an iron oxide melt (Frutos & Oyarzun, 1975; Nyström & Henríquez, 1994; Naslund et al., 2002; Henríquez et al., 2003; Tornos et al., 2011). To solve this fascinating controversy is crucial to understand the problem from a global point of view, integrating geological and geochemical data of the magmatic and hydrothermal rocks present in the area Departamento de Mineralogía y Petrología, Universidad del País Vasco, España Instituto Geológico y Minero de España, España Departamento de Educación, Universidades e Investigación, Gobierno Vasco, España Other/Unknown Material Kiruna Digital.CSIC (Spanish National Research Council) Kiruna |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
El Laco yacimiento magnetita alteración hidrotermal Chile magnetite deposit hydrothermal alteration |
spellingShingle |
El Laco yacimiento magnetita alteración hidrotermal Chile magnetite deposit hydrothermal alteration Velasco, Francisco Tornos Arroyo, Fernando Insights on the effects of the hydrothermal alteration in the El Laco magnetite deposit (Chile) |
topic_facet |
El Laco yacimiento magnetita alteración hidrotermal Chile magnetite deposit hydrothermal alteration |
description |
Congreso SEM-SEA 2012, reunión conjunta de las sociedades españolas de Mineralogía (XXXII Reunión) y Arcillas (XXII Reunión), celebrado en Bilbao entre el 27 y 30 de Junio de 2012 The understanding of the origin of the recent (ca. 2 Ma) El Laco deposit (Fig. 1), with near 1 Gt of almost pure magnetite/hematite, is considered critical for the interpretation of the Kiruna type magnetite-apatite style of mineralization, an end-member of the IOCG group of deposits. Despite the abundant studies conducted in the last decades on El Laco, with little erosion, well preserved volcanic features and excellent conditions of exposure, there is no agreement between models that support a genesis related to the hydrothermal replacement of preexisting andesitic rocks (Rhodes & Oreskes, 1999; Rhodes et al., 1999) and those which interpret the deposit as magmatic flows and dikes product of the crystallization of an iron oxide melt (Frutos & Oyarzun, 1975; Nyström & Henríquez, 1994; Naslund et al., 2002; Henríquez et al., 2003; Tornos et al., 2011). To solve this fascinating controversy is crucial to understand the problem from a global point of view, integrating geological and geochemical data of the magmatic and hydrothermal rocks present in the area Departamento de Mineralogía y Petrología, Universidad del País Vasco, España Instituto Geológico y Minero de España, España Departamento de Educación, Universidades e Investigación, Gobierno Vasco, España |
format |
Other/Unknown Material |
author |
Velasco, Francisco Tornos Arroyo, Fernando |
author_facet |
Velasco, Francisco Tornos Arroyo, Fernando |
author_sort |
Velasco, Francisco |
title |
Insights on the effects of the hydrothermal alteration in the El Laco magnetite deposit (Chile) |
title_short |
Insights on the effects of the hydrothermal alteration in the El Laco magnetite deposit (Chile) |
title_full |
Insights on the effects of the hydrothermal alteration in the El Laco magnetite deposit (Chile) |
title_fullStr |
Insights on the effects of the hydrothermal alteration in the El Laco magnetite deposit (Chile) |
title_full_unstemmed |
Insights on the effects of the hydrothermal alteration in the El Laco magnetite deposit (Chile) |
title_sort |
insights on the effects of the hydrothermal alteration in the el laco magnetite deposit (chile) |
publisher |
Sociedad Española de Mineralogía |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.12468/407 |
op_coverage |
El Laco, Chile |
geographic |
Kiruna |
geographic_facet |
Kiruna |
genre |
Kiruna |
genre_facet |
Kiruna |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# CGL2011-23207 IT340-10 http://www.ehu.eus/sem/macla_pdf/macla16/Macla16_210.pdf Macla, n.16, 210-211 2659-9864 http://hdl.handle.net/20.500.12468/407 |
op_rights |
open |
op_doi |
https://doi.org/20.500.12468/407 |
_version_ |
1766058342143229952 |