Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements

Publicat a https://www.sciencedirect.com/science/article/pii/S037567421830623X

Bibliographic Details
Authors: Menéndez, Inmaculada, Campeny, Marc, Quevedo-González, Luis, Mangas, José, Llovet, Xavier, Tauler, Esperança, Barrón, Vidal, Torrent, José, Méndez-Ramos, Jorge
Format: article
Status:Versión aceptada para publicación
Publication Date:2019
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2072/358257
Online Access:http://hdl.handle.net/2072/358257
https://doi.org/10.1016/j.gexplo.2019.06.007
Access Level:Open access
Keyword:Terres rares
Roques plutòniques
Gran Canària (Canàries)
55
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oai_identifier_str oai:recercat.cat:2072/358257
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spelling Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elementsMenéndez, InmaculadaCampeny, MarcQuevedo-González, LuisMangas, JoséLlovet, XavierTauler, EsperançaBarrón, VidalTorrent, JoséMéndez-Ramos, JorgeTerres raresRoques plutòniquesGran Canària (Canàries)55Publicat a https://www.sciencedirect.com/science/article/pii/S037567421830623XGran Canaria is a hotspot-derived, intraplate, oceanic island, comprising a variety of alkaline felsic magmatic rocks (i.e. phonolites, trachytes, rhyolites and syenites). These rocks are enriched in rare-earth elements (REE) in relation to the mean concentration in the Earth's crust and they are subsequently mobilised and redistributed in the soil profile. From a set of 57 samples of felsic rocks and 12 samples from three paleosol profiles, we assess the concentration and mobility of REE. In the saprolite that developed over the rhyolites, we identified REE-bearing minerals such as primary monazite-(Ce), as well as secondary phases associated with the edaphic weathering, such as rhabdophane-(Ce) and LREE oxides. The averaged concentration of REE in the alkaline bedrock varies from trachytes (449 mg kg−1), to rhyolites (588 mg kg−1) and to phonolites (1036 mg kg−1). REE are slightly enriched in saprolites developed on trachyte (498 mg kg−1), rhyolite (601 mg kg−1) and phonolite (1171 mg kg−1) bedrocks. However, B-horizons of paleosols from trachytes and phonolites showed REE depletion (436 and 994 mg kg−1, respectively), whereas a marked enrichment was found in soils developed on rhyolites (1584 mg kg−1). According to our results, REE resources on Gran Canaria are significant, especially in Miocene alkaline felsic magmatic rocks (declining stage) and their associated paleosols. We estimate a total material volume of approximately 1000 km3 with REE concentrations of 672 ± 296 mg kg−1, yttrium contents of 57 ± 30 mg kg−1, and light and heavy REE ratios (LREE/HREE) of 17 ± 6. This mineralisation can be considered as bulk tonnage and low-grade ore REE deposits but it remains necessary to develop detailed mineral exploration on selected insular zones in the future, without undermining environmental and socioeconomic interests. REE exploration; REE-bearing minerals; Weathering processes; Ocean intraplate volcanic island; Gran Canaria2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion58 p.application/pdfhttp://hdl.handle.net/2072/358257https://doi.org/10.1016/j.gexplo.2019.06.007RECERCAT (Dipòsit de la Recerca de Catalunya)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésJournal of Geochemical Exploration, Volume 204, September 2019, Pages 270-288L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by-nc-nd/4.0/© 2019 Elsevier B.V. All rights reserved.info:eu-repo/semantics/openAccessoai:recercat.cat:2072/3582572026-05-29T05:05:01Z
dc.title.none.fl_str_mv Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements
title Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements
spellingShingle Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements
Menéndez, Inmaculada
Terres rares
Roques plutòniques
Gran Canària (Canàries)
55
title_short Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements
title_full Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements
title_fullStr Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements
title_full_unstemmed Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements
title_sort Distribution of REE-bearing minerals in felsic magmatic rocks and paleosols from Gran Canaria, Spain: Intraplate oceanic islands as a new example of potential, non-conventional sources of rare-earth elements
dc.creator.none.fl_str_mv Menéndez, Inmaculada
Campeny, Marc
Quevedo-González, Luis
Mangas, José
Llovet, Xavier
Tauler, Esperança
Barrón, Vidal
Torrent, José
Méndez-Ramos, Jorge
author Menéndez, Inmaculada
author_facet Menéndez, Inmaculada
Campeny, Marc
Quevedo-González, Luis
Mangas, José
Llovet, Xavier
Tauler, Esperança
Barrón, Vidal
Torrent, José
Méndez-Ramos, Jorge
author_role author
author2 Campeny, Marc
Quevedo-González, Luis
Mangas, José
Llovet, Xavier
Tauler, Esperança
Barrón, Vidal
Torrent, José
Méndez-Ramos, Jorge
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Terres rares
Roques plutòniques
Gran Canària (Canàries)
55
topic Terres rares
Roques plutòniques
Gran Canària (Canàries)
55
description Publicat a https://www.sciencedirect.com/science/article/pii/S037567421830623X
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/2072/358257
https://doi.org/10.1016/j.gexplo.2019.06.007
url http://hdl.handle.net/2072/358257
https://doi.org/10.1016/j.gexplo.2019.06.007
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of Geochemical Exploration, Volume 204, September 2019, Pages 270-288
dc.rights.none.fl_str_mv © 2019 Elsevier B.V. All rights reserved.
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © 2019 Elsevier B.V. All rights reserved.
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 58 p.
application/pdf
dc.source.none.fl_str_mv RECERCAT (Dipòsit de la Recerca de Catalunya)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403954201231360
score 15,811543

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