Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry
Neodymium isotope data on exhalites and tuffs from the Cambrian Lemarchant volcanogenic massive sulphide (VMS) deposit provide insights into the tectonic environment of the Tally Pond group, Canada. New data from exhalites from the Lemarchant area show evolved values of εNd513 = 6.0 to 1.8, whereas...
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/15216 2023-07-02T03:33:01+02:00 Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry Lode, Stefanie Piercey, Stephen J. Cloutier, Jonathan University of St Andrews. Earth and Environmental Sciences 2018-07-11 14 application/pdf http://hdl.handle.net/10023/15216 https://doi.org/10.1144/jgs2017-008 eng eng Journal of the Geological Society Lode , S , Piercey , S J & Cloutier , J 2017 , ' Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry ' , Journal of the Geological Society , vol. 174 , no. 6 , pp. 954-967 . https://doi.org/10.1144/jgs2017-008 0016-7649 PURE: 250559522 PURE UUID: 614a5778-9001-460c-b662-f2a77b5d6ff2 Scopus: 85033574312 ORCID: /0000-0002-9432-9880/work/35609723 WOS: 000414589000001 http://hdl.handle.net/10023/15216 https://doi.org/10.1144/jgs2017-008 Copyright © 2017, the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1144/jgs2017-008 Lemarchant deposit VMS deposit Nd isotopes Lithogeochemistry Newfoundland QE Geology Economic Geology NDAS QE Journal article 2018 ftstandrewserep https://doi.org/10.1144/jgs2017-008 2023-06-13T18:29:39Z Neodymium isotope data on exhalites and tuffs from the Cambrian Lemarchant volcanogenic massive sulphide (VMS) deposit provide insights into the tectonic environment of the Tally Pond group, Canada. New data from exhalites from the Lemarchant area show evolved values of εNd513 = 6.0 to 1.8, whereas the associated volcanic rocks have εNd513 of +0.4 to +1.4. The Lemarchant exhalite εNd compositions overlap the underlying Ganderian Neoproterozoic Sandy Brook Group (εNdt = 6.5 to 1.9) and Crippleback Intrusive Suite (εNdt = 5.9 to 5.2). The evolved Nd isotopic signatures suggest that the volcanic rocks of the Tally Pond group were formed upon Ganderian arc basement, which itself was possibly built upon, or proximal to, the Gondwanan Amazonian margin. Erosion of older crustal material and Tally Pond group volcanic rocks, together with coeval eruption of the volcanic rocks, released Nd-rich detritus into the water column. Uptake of eroded detrital and scavenged Nd resulted in mixed Nd sources (juvenile and evolved), which are archived in the exhalites. The results of this study are of significance not only for occurrences of exhalites within the Tally Pond group, but also have exploration implications for VMS districts globally. Postprint Peer reviewed Article in Journal/Newspaper Newfoundland University of St Andrews: Digital Research Repository Canada Journal of the Geological Society 174 6 954 967 |
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Open Polar |
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University of St Andrews: Digital Research Repository |
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ftstandrewserep |
language |
English |
topic |
Lemarchant deposit VMS deposit Nd isotopes Lithogeochemistry Newfoundland QE Geology Economic Geology NDAS QE |
spellingShingle |
Lemarchant deposit VMS deposit Nd isotopes Lithogeochemistry Newfoundland QE Geology Economic Geology NDAS QE Lode, Stefanie Piercey, Stephen J. Cloutier, Jonathan Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry |
topic_facet |
Lemarchant deposit VMS deposit Nd isotopes Lithogeochemistry Newfoundland QE Geology Economic Geology NDAS QE |
description |
Neodymium isotope data on exhalites and tuffs from the Cambrian Lemarchant volcanogenic massive sulphide (VMS) deposit provide insights into the tectonic environment of the Tally Pond group, Canada. New data from exhalites from the Lemarchant area show evolved values of εNd513 = 6.0 to 1.8, whereas the associated volcanic rocks have εNd513 of +0.4 to +1.4. The Lemarchant exhalite εNd compositions overlap the underlying Ganderian Neoproterozoic Sandy Brook Group (εNdt = 6.5 to 1.9) and Crippleback Intrusive Suite (εNdt = 5.9 to 5.2). The evolved Nd isotopic signatures suggest that the volcanic rocks of the Tally Pond group were formed upon Ganderian arc basement, which itself was possibly built upon, or proximal to, the Gondwanan Amazonian margin. Erosion of older crustal material and Tally Pond group volcanic rocks, together with coeval eruption of the volcanic rocks, released Nd-rich detritus into the water column. Uptake of eroded detrital and scavenged Nd resulted in mixed Nd sources (juvenile and evolved), which are archived in the exhalites. The results of this study are of significance not only for occurrences of exhalites within the Tally Pond group, but also have exploration implications for VMS districts globally. Postprint Peer reviewed |
author2 |
University of St Andrews. Earth and Environmental Sciences |
format |
Article in Journal/Newspaper |
author |
Lode, Stefanie Piercey, Stephen J. Cloutier, Jonathan |
author_facet |
Lode, Stefanie Piercey, Stephen J. Cloutier, Jonathan |
author_sort |
Lode, Stefanie |
title |
Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry |
title_short |
Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry |
title_full |
Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry |
title_fullStr |
Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry |
title_full_unstemmed |
Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry |
title_sort |
provenance of exhalites associated with the lemarchant volcanogenic massive sulphide (vms) deposit, central newfoundland, canada : insights from nd isotopes and lithogeochemistry |
publishDate |
2018 |
url |
http://hdl.handle.net/10023/15216 https://doi.org/10.1144/jgs2017-008 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
Journal of the Geological Society Lode , S , Piercey , S J & Cloutier , J 2017 , ' Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada : insights from Nd isotopes and lithogeochemistry ' , Journal of the Geological Society , vol. 174 , no. 6 , pp. 954-967 . https://doi.org/10.1144/jgs2017-008 0016-7649 PURE: 250559522 PURE UUID: 614a5778-9001-460c-b662-f2a77b5d6ff2 Scopus: 85033574312 ORCID: /0000-0002-9432-9880/work/35609723 WOS: 000414589000001 http://hdl.handle.net/10023/15216 https://doi.org/10.1144/jgs2017-008 |
op_rights |
Copyright © 2017, the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1144/jgs2017-008 |
op_doi |
https://doi.org/10.1144/jgs2017-008 |
container_title |
Journal of the Geological Society |
container_volume |
174 |
container_issue |
6 |
container_start_page |
954 |
op_container_end_page |
967 |
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1770272785073963008 |