Petrogenesis of LREE-rich pegmatitic granite dykes in the central Grenville Province by partial melting of Paleoproterozoic-Archean metasedimentary rocks: Evidence from zircon U-Pb-Hf-O isotope and trace element analyses
International audience The Allochthonous Belt of the central Grenville Province in Quebec (Canada) hosts LREE-rich pegmatitic granite dykes (PGDs) intrusive into orthogneisses and migmatitic paragneisses. Zircon crystals from a monazite-bearing PGD and two allanite-bearing PGDs of the Lac Okaopéo re...
Published in: | Precambrian Research |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2019
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Subjects: | |
Online Access: | https://hal.univ-lorraine.fr/hal-02166886 https://hal.univ-lorraine.fr/hal-02166886/document https://hal.univ-lorraine.fr/hal-02166886/file/Turlin%20et%20al._2019_PR_Accepted%20manuscript.pdf https://doi.org/10.1016/j.precamres.2019.02.009 |
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ftinsu:oai:HAL:hal-02166886v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Zircon U-Pb-Hf-O isotopes Trace element Grenville Province Pegmatitic granite LREE mineralization [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
Zircon U-Pb-Hf-O isotopes Trace element Grenville Province Pegmatitic granite LREE mineralization [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Turlin, François Vanderhaeghe, Olivier Gervais, Félix André-Mayer, Anne-Sylvie Moukhsil, Abdelali Zeh, Armin Solgadi, Fabien Iptn, Iptn Petrogenesis of LREE-rich pegmatitic granite dykes in the central Grenville Province by partial melting of Paleoproterozoic-Archean metasedimentary rocks: Evidence from zircon U-Pb-Hf-O isotope and trace element analyses |
topic_facet |
Zircon U-Pb-Hf-O isotopes Trace element Grenville Province Pegmatitic granite LREE mineralization [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The Allochthonous Belt of the central Grenville Province in Quebec (Canada) hosts LREE-rich pegmatitic granite dykes (PGDs) intrusive into orthogneisses and migmatitic paragneisses. Zircon crystals from a monazite-bearing PGD and two allanite-bearing PGDs of the Lac Okaopéo region were investigated. Concordia U-Pb ages of 1004.2 ± 2.1 Ma, 1001.9 ± 3.9 Ma and 1004.2 ± 2.3 Ma, respectively, indicate that emplacement of the dykes occurred during the early-Rigolet orogenic phase. Trace element contents (U, Yb, Y) of zircon grains, their subchondritic εHf(1003 Ma) values from −4.7 to −11.8, Hf model ages from 2.05 to 2.44 Ga, and predominant supra-mantle δ18OV-SMOW values (> 5.3‰) indicate that the dykes were formed by partial melting of Paleoproterozoic-Archean metasedimentary rocks equivalent to those exposed in the Parautochthonous Belt (Knob Lake Group paragneisses), and located beneath the thickened Allochthonous Belt. This implies that the Parautochthonous Belt is present beneath the Allochthonous Belt hosting the LREE-rich PGDs and that it was affected by horizontal ductile flow towards the north for at least 80 km where it is currently exhumed along the Grenville Front. |
author2 |
GeoRessources Institut national des sciences de l'Univers (INSU - CNRS)-Centre de recherches sur la géologie des matières premières minérales et énergétiques (CREGU)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) École Polytechnique de Montréal (EPM) Ministère de l’Énergie et des Ressources naturelles Karlsruhe Institute of Technology (KIT) Centre de Recherches Pétrographiques et Géochimiques (CRPG) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) LabEx RESSOURCES21 ANR-10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010) |
format |
Article in Journal/Newspaper |
author |
Turlin, François Vanderhaeghe, Olivier Gervais, Félix André-Mayer, Anne-Sylvie Moukhsil, Abdelali Zeh, Armin Solgadi, Fabien Iptn, Iptn |
author_facet |
Turlin, François Vanderhaeghe, Olivier Gervais, Félix André-Mayer, Anne-Sylvie Moukhsil, Abdelali Zeh, Armin Solgadi, Fabien Iptn, Iptn |
author_sort |
Turlin, François |
title |
Petrogenesis of LREE-rich pegmatitic granite dykes in the central Grenville Province by partial melting of Paleoproterozoic-Archean metasedimentary rocks: Evidence from zircon U-Pb-Hf-O isotope and trace element analyses |
title_short |
Petrogenesis of LREE-rich pegmatitic granite dykes in the central Grenville Province by partial melting of Paleoproterozoic-Archean metasedimentary rocks: Evidence from zircon U-Pb-Hf-O isotope and trace element analyses |
title_full |
Petrogenesis of LREE-rich pegmatitic granite dykes in the central Grenville Province by partial melting of Paleoproterozoic-Archean metasedimentary rocks: Evidence from zircon U-Pb-Hf-O isotope and trace element analyses |
title_fullStr |
Petrogenesis of LREE-rich pegmatitic granite dykes in the central Grenville Province by partial melting of Paleoproterozoic-Archean metasedimentary rocks: Evidence from zircon U-Pb-Hf-O isotope and trace element analyses |
title_full_unstemmed |
Petrogenesis of LREE-rich pegmatitic granite dykes in the central Grenville Province by partial melting of Paleoproterozoic-Archean metasedimentary rocks: Evidence from zircon U-Pb-Hf-O isotope and trace element analyses |
title_sort |
petrogenesis of lree-rich pegmatitic granite dykes in the central grenville province by partial melting of paleoproterozoic-archean metasedimentary rocks: evidence from zircon u-pb-hf-o isotope and trace element analyses |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.univ-lorraine.fr/hal-02166886 https://hal.univ-lorraine.fr/hal-02166886/document https://hal.univ-lorraine.fr/hal-02166886/file/Turlin%20et%20al._2019_PR_Accepted%20manuscript.pdf https://doi.org/10.1016/j.precamres.2019.02.009 |
long_lat |
ENVELOPE(-115.168,-115.168,64.317,64.317) ENVELOPE(-58.430,-58.430,54.180,54.180) |
geographic |
Canada Knob Lake Rigolet |
geographic_facet |
Canada Knob Lake Rigolet |
genre |
Rigolet |
genre_facet |
Rigolet |
op_source |
ISSN: 0301-9268 Precambrian Research https://hal.univ-lorraine.fr/hal-02166886 Precambrian Research, 2019, 327, pp.327-360. ⟨10.1016/j.precamres.2019.02.009⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.precamres.2019.02.009 hal-02166886 https://hal.univ-lorraine.fr/hal-02166886 https://hal.univ-lorraine.fr/hal-02166886/document https://hal.univ-lorraine.fr/hal-02166886/file/Turlin%20et%20al._2019_PR_Accepted%20manuscript.pdf doi:10.1016/j.precamres.2019.02.009 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.precamres.2019.02.009 |
container_title |
Precambrian Research |
container_volume |
327 |
container_start_page |
327 |
op_container_end_page |
360 |
_version_ |
1785573672484864000 |
spelling |
ftinsu:oai:HAL:hal-02166886v1 2023-12-17T10:49:16+01:00 Petrogenesis of LREE-rich pegmatitic granite dykes in the central Grenville Province by partial melting of Paleoproterozoic-Archean metasedimentary rocks: Evidence from zircon U-Pb-Hf-O isotope and trace element analyses Turlin, François Vanderhaeghe, Olivier Gervais, Félix André-Mayer, Anne-Sylvie Moukhsil, Abdelali Zeh, Armin Solgadi, Fabien Iptn, Iptn GeoRessources Institut national des sciences de l'Univers (INSU - CNRS)-Centre de recherches sur la géologie des matières premières minérales et énergétiques (CREGU)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) École Polytechnique de Montréal (EPM) Ministère de l’Énergie et des Ressources naturelles Karlsruhe Institute of Technology (KIT) Centre de Recherches Pétrographiques et Géochimiques (CRPG) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) LabEx RESSOURCES21 ANR-10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010) 2019-04 https://hal.univ-lorraine.fr/hal-02166886 https://hal.univ-lorraine.fr/hal-02166886/document https://hal.univ-lorraine.fr/hal-02166886/file/Turlin%20et%20al._2019_PR_Accepted%20manuscript.pdf https://doi.org/10.1016/j.precamres.2019.02.009 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.precamres.2019.02.009 hal-02166886 https://hal.univ-lorraine.fr/hal-02166886 https://hal.univ-lorraine.fr/hal-02166886/document https://hal.univ-lorraine.fr/hal-02166886/file/Turlin%20et%20al._2019_PR_Accepted%20manuscript.pdf doi:10.1016/j.precamres.2019.02.009 http://creativecommons.org/licenses/by-nc-nd/ info:eu-repo/semantics/OpenAccess ISSN: 0301-9268 Precambrian Research https://hal.univ-lorraine.fr/hal-02166886 Precambrian Research, 2019, 327, pp.327-360. ⟨10.1016/j.precamres.2019.02.009⟩ Zircon U-Pb-Hf-O isotopes Trace element Grenville Province Pegmatitic granite LREE mineralization [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2019 ftinsu https://doi.org/10.1016/j.precamres.2019.02.009 2023-11-22T17:44:55Z International audience The Allochthonous Belt of the central Grenville Province in Quebec (Canada) hosts LREE-rich pegmatitic granite dykes (PGDs) intrusive into orthogneisses and migmatitic paragneisses. Zircon crystals from a monazite-bearing PGD and two allanite-bearing PGDs of the Lac Okaopéo region were investigated. Concordia U-Pb ages of 1004.2 ± 2.1 Ma, 1001.9 ± 3.9 Ma and 1004.2 ± 2.3 Ma, respectively, indicate that emplacement of the dykes occurred during the early-Rigolet orogenic phase. Trace element contents (U, Yb, Y) of zircon grains, their subchondritic εHf(1003 Ma) values from −4.7 to −11.8, Hf model ages from 2.05 to 2.44 Ga, and predominant supra-mantle δ18OV-SMOW values (> 5.3‰) indicate that the dykes were formed by partial melting of Paleoproterozoic-Archean metasedimentary rocks equivalent to those exposed in the Parautochthonous Belt (Knob Lake Group paragneisses), and located beneath the thickened Allochthonous Belt. This implies that the Parautochthonous Belt is present beneath the Allochthonous Belt hosting the LREE-rich PGDs and that it was affected by horizontal ductile flow towards the north for at least 80 km where it is currently exhumed along the Grenville Front. Article in Journal/Newspaper Rigolet Institut national des sciences de l'Univers: HAL-INSU Canada Knob Lake ENVELOPE(-115.168,-115.168,64.317,64.317) Rigolet ENVELOPE(-58.430,-58.430,54.180,54.180) Precambrian Research 327 327 360 |