Spatial distribution and compositional variation of APS minerals related to uranium deposits in the Kiggavik-Andrew Lake structural trend, Nunavut, Canada
International audience The Kiggavik-Andrew Lake structural trend consists of four mineralized zones, partially outcropping, lying 2 km south of the erosional contact with the unmetamorphosed sandstone and basal conglomerates of the Paleoproterozoic Thelon Formation. The mineralization is controlled...
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ftccsdartic:oai:HAL:hal-01524682v1 2023-05-15T17:48:05+02:00 Spatial distribution and compositional variation of APS minerals related to uranium deposits in the Kiggavik-Andrew Lake structural trend, Nunavut, Canada Riegler, Thomas Quirt, Dave Beaufort, Daniel Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-Institut de Chimie du CNRS (INC) AREVA Groupe AREVA 2016-01-01 https://hal.archives-ouvertes.fr/hal-01524682 https://doi.org/10.1007/s00126-015-0595-y en eng HAL CCSD Spinger info:eu-repo/semantics/altIdentifier/doi/10.1007/s00126-015-0595-y hal-01524682 https://hal.archives-ouvertes.fr/hal-01524682 doi:10.1007/s00126-015-0595-y ISSN: 0026-4598 Mineralium Deposita https://hal.archives-ouvertes.fr/hal-01524682 Mineralium Deposita, Spinger, 2016, 51, pp.219. ⟨10.1007/s00126-015-0595-y⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2016 ftccsdartic https://doi.org/10.1007/s00126-015-0595-y 2021-12-19T02:35:35Z International audience The Kiggavik-Andrew Lake structural trend consists of four mineralized zones, partially outcropping, lying 2 km south of the erosional contact with the unmetamorphosed sandstone and basal conglomerates of the Paleoproterozoic Thelon Formation. The mineralization is controlled by a major E-W fault system associated with illite and sudoite alteration halos developed in the Archean metagraywackes of the Woodburn Lake Group. Aluminum phosphate sulfate (APS) minerals from the alunite group crystallized in association with the clay minerals in the basement alteration halo as well as in the overlying sandstones, which underwent mostly diagenesis. APS minerals are Sr- and S-rich (svanbergite end-member) in the sedimentary cover overlying the unconformity, whereas they are light rare earth elements (LREE)-rich (florencite end-member) in the altered basement rocks below the unconformity. The geochemical signature of each group of APS minerals together with the petrography indicates three distinct generations of APS minerals related to the following: (1) paleoweathering of continental surfaces prior to the basin occurrence, (2) diagenetic processes during the burial history of the lower unit of the Thelon sandstones, and (3) hydrothermal alteration processes which accompanied the uranium deposition in the basement rocks and partially overlap the sedimentary-diagenetic mineral parageneses. In addition, the association of a first generation of APS minerals with both detrital cerium oxide and aluminum oxy-hydroxide highlights the fact that a part of the detrital material of the basal Thelon Formation originated from eroded paleolaterite (allochthonous regolith). The primary rare earth element (REE)-bearing minerals (e.g., monazite, REE carbonates, and allanite) of the host rocks were characterized to identify the potential sources of REE. The REE chemical composition highlights a local re-incorporation of the REE released from the alteration processes in the APS minerals of hydrothermal origin. The ... Article in Journal/Newspaper Nunavut Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Canada Nunavut Mineralium Deposita 51 2 219 236 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
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[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Riegler, Thomas Quirt, Dave Beaufort, Daniel Spatial distribution and compositional variation of APS minerals related to uranium deposits in the Kiggavik-Andrew Lake structural trend, Nunavut, Canada |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The Kiggavik-Andrew Lake structural trend consists of four mineralized zones, partially outcropping, lying 2 km south of the erosional contact with the unmetamorphosed sandstone and basal conglomerates of the Paleoproterozoic Thelon Formation. The mineralization is controlled by a major E-W fault system associated with illite and sudoite alteration halos developed in the Archean metagraywackes of the Woodburn Lake Group. Aluminum phosphate sulfate (APS) minerals from the alunite group crystallized in association with the clay minerals in the basement alteration halo as well as in the overlying sandstones, which underwent mostly diagenesis. APS minerals are Sr- and S-rich (svanbergite end-member) in the sedimentary cover overlying the unconformity, whereas they are light rare earth elements (LREE)-rich (florencite end-member) in the altered basement rocks below the unconformity. The geochemical signature of each group of APS minerals together with the petrography indicates three distinct generations of APS minerals related to the following: (1) paleoweathering of continental surfaces prior to the basin occurrence, (2) diagenetic processes during the burial history of the lower unit of the Thelon sandstones, and (3) hydrothermal alteration processes which accompanied the uranium deposition in the basement rocks and partially overlap the sedimentary-diagenetic mineral parageneses. In addition, the association of a first generation of APS minerals with both detrital cerium oxide and aluminum oxy-hydroxide highlights the fact that a part of the detrital material of the basal Thelon Formation originated from eroded paleolaterite (allochthonous regolith). The primary rare earth element (REE)-bearing minerals (e.g., monazite, REE carbonates, and allanite) of the host rocks were characterized to identify the potential sources of REE. The REE chemical composition highlights a local re-incorporation of the REE released from the alteration processes in the APS minerals of hydrothermal origin. The ... |
author2 |
Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-Institut de Chimie du CNRS (INC) AREVA Groupe AREVA |
format |
Article in Journal/Newspaper |
author |
Riegler, Thomas Quirt, Dave Beaufort, Daniel |
author_facet |
Riegler, Thomas Quirt, Dave Beaufort, Daniel |
author_sort |
Riegler, Thomas |
title |
Spatial distribution and compositional variation of APS minerals related to uranium deposits in the Kiggavik-Andrew Lake structural trend, Nunavut, Canada |
title_short |
Spatial distribution and compositional variation of APS minerals related to uranium deposits in the Kiggavik-Andrew Lake structural trend, Nunavut, Canada |
title_full |
Spatial distribution and compositional variation of APS minerals related to uranium deposits in the Kiggavik-Andrew Lake structural trend, Nunavut, Canada |
title_fullStr |
Spatial distribution and compositional variation of APS minerals related to uranium deposits in the Kiggavik-Andrew Lake structural trend, Nunavut, Canada |
title_full_unstemmed |
Spatial distribution and compositional variation of APS minerals related to uranium deposits in the Kiggavik-Andrew Lake structural trend, Nunavut, Canada |
title_sort |
spatial distribution and compositional variation of aps minerals related to uranium deposits in the kiggavik-andrew lake structural trend, nunavut, canada |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.archives-ouvertes.fr/hal-01524682 https://doi.org/10.1007/s00126-015-0595-y |
geographic |
Canada Nunavut |
geographic_facet |
Canada Nunavut |
genre |
Nunavut |
genre_facet |
Nunavut |
op_source |
ISSN: 0026-4598 Mineralium Deposita https://hal.archives-ouvertes.fr/hal-01524682 Mineralium Deposita, Spinger, 2016, 51, pp.219. ⟨10.1007/s00126-015-0595-y⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00126-015-0595-y hal-01524682 https://hal.archives-ouvertes.fr/hal-01524682 doi:10.1007/s00126-015-0595-y |
op_doi |
https://doi.org/10.1007/s00126-015-0595-y |
container_title |
Mineralium Deposita |
container_volume |
51 |
container_issue |
2 |
container_start_page |
219 |
op_container_end_page |
236 |
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1766153273799081984 |