Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada
The Lemarchant volcanogenic massive sulphide (VMS) deposit (1.24 Mt grading at 0.58% Cu, 5.38% Zn, 1.19% Pb, 1.01g/t Au, and 59.17g/t Ag) is a bimodal-felsic VMS deposit hosted within the Late Cambrian ($513–509 Ma) Tally Pond group of the Exploit Subzone in central Newfoundland, Canada. The deposit...
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/lithostratigraphic-and-structural-reconstruction-of-the-znpbcuagau-lemarchant-volcanogenic-massive-sulphide-vms-deposit-tally-pond-group-central-newfoundland-canada(67522308-af92-46a4-87e3-fe5ce6599dcf).html https://doi.org/10.1016/j.oregeorev.2017.01.010 https://research-repository.st-andrews.ac.uk/bitstream/10023/12472/1/Cloutier_et_al_Lemarchant_VMS_deposit_final_with_figures.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/67522308-af92-46a4-87e3-fe5ce6599dcf 2024-06-23T07:54:46+00:00 Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada Cloutier, Jonathan Piercey, Stephen J. Lode, Stefanie Vande Gutche, Michael Copeland, David A. 2017-04 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/lithostratigraphic-and-structural-reconstruction-of-the-znpbcuagau-lemarchant-volcanogenic-massive-sulphide-vms-deposit-tally-pond-group-central-newfoundland-canada(67522308-af92-46a4-87e3-fe5ce6599dcf).html https://doi.org/10.1016/j.oregeorev.2017.01.010 https://research-repository.st-andrews.ac.uk/bitstream/10023/12472/1/Cloutier_et_al_Lemarchant_VMS_deposit_final_with_figures.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/lithostratigraphic-and-structural-reconstruction-of-the-znpbcuagau-lemarchant-volcanogenic-massive-sulphide-vms-deposit-tally-pond-group-central-newfoundland-canada(67522308-af92-46a4-87e3-fe5ce6599dcf).html info:eu-repo/semantics/openAccess Cloutier , J , Piercey , S J , Lode , S , Vande Gutche , M & Copeland , D A 2017 , ' Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada ' , Ore Geology Reviews , vol. 84 , pp. 154-173 . https://doi.org/10.1016/j.oregeorev.2017.01.010 Precious metal enriched VMS deposits Lemarchant deposit Tally Pond Stratigraphic reconstruction Structural reconstruction Appalachian tectonic evolution article 2017 ftunstandrewcris https://doi.org/10.1016/j.oregeorev.2017.01.010 2024-06-13T00:54:30Z The Lemarchant volcanogenic massive sulphide (VMS) deposit (1.24 Mt grading at 0.58% Cu, 5.38% Zn, 1.19% Pb, 1.01g/t Au, and 59.17g/t Ag) is a bimodal-felsic VMS deposit hosted within the Late Cambrian ($513–509 Ma) Tally Pond group of the Exploit Subzone in central Newfoundland, Canada. The deposit is hosted by andesitic volcaniclastic and volcanic rocks with subordinate dacite flows. The mineralisation is hosted by the dacites and is overlain by pillowed and massive basalts.Four structural breaks offset the local stratigraphic sequences including: 1) the LJ syn-volcanic shear zone; 2) the KJ syn-volcanic shear zone; 3) the Lemarchant thrust; and 4) the Bam normal fault. Deformation of the Lemarchant likely occurred during the Penobscot orogeny (486–478 Ma). Early deformation is marked with the local deformation of the LJ and KJ syn-volcanic shear zones during NW-SE compression which coincided with the development of the Lemarchant thrust. A late (<465Ma) east trending normal fault, the Bam fault, affected the central portion of the Lemarchant area and down-faulted the southern portion of the study area relative to the northern portion.Immobile element systematics of all the sequences from the Lemarchant deposit are tholeiitic with transitional Zr/Y ratios (1.9–6.6), Lan/Smn ratios <1 (normalised to upper crust), and have primitive mantle extended rare earth elements profiles with slight light rare earth element (LREE)-enriched pat- terns with flat heavy REE (HREE), and weak to strong negative Nb, Zr, and Ti anomalies. Together, these geochemical features, coupled with an FIIIa signature, and existing mineralogical and Nd-Pb iso- tope data, are consistent with the rocks at the Lemarchant deposit having formed within a shallow (<1500 m) arc or migrating cross-arc seamount chain located within a young peri-continental rifted arc along the margin of Ganderia, within the Iapetus Ocean. The estimated shallow water emplace- ment of the deposit likely allowed boiling near or at the rock-sea water interface, ... Article in Journal/Newspaper Newfoundland University of St Andrews: Research Portal Canada Ore Geology Reviews 84 154 173 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Precious metal enriched VMS deposits Lemarchant deposit Tally Pond Stratigraphic reconstruction Structural reconstruction Appalachian tectonic evolution |
spellingShingle |
Precious metal enriched VMS deposits Lemarchant deposit Tally Pond Stratigraphic reconstruction Structural reconstruction Appalachian tectonic evolution Cloutier, Jonathan Piercey, Stephen J. Lode, Stefanie Vande Gutche, Michael Copeland, David A. Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada |
topic_facet |
Precious metal enriched VMS deposits Lemarchant deposit Tally Pond Stratigraphic reconstruction Structural reconstruction Appalachian tectonic evolution |
description |
The Lemarchant volcanogenic massive sulphide (VMS) deposit (1.24 Mt grading at 0.58% Cu, 5.38% Zn, 1.19% Pb, 1.01g/t Au, and 59.17g/t Ag) is a bimodal-felsic VMS deposit hosted within the Late Cambrian ($513–509 Ma) Tally Pond group of the Exploit Subzone in central Newfoundland, Canada. The deposit is hosted by andesitic volcaniclastic and volcanic rocks with subordinate dacite flows. The mineralisation is hosted by the dacites and is overlain by pillowed and massive basalts.Four structural breaks offset the local stratigraphic sequences including: 1) the LJ syn-volcanic shear zone; 2) the KJ syn-volcanic shear zone; 3) the Lemarchant thrust; and 4) the Bam normal fault. Deformation of the Lemarchant likely occurred during the Penobscot orogeny (486–478 Ma). Early deformation is marked with the local deformation of the LJ and KJ syn-volcanic shear zones during NW-SE compression which coincided with the development of the Lemarchant thrust. A late (<465Ma) east trending normal fault, the Bam fault, affected the central portion of the Lemarchant area and down-faulted the southern portion of the study area relative to the northern portion.Immobile element systematics of all the sequences from the Lemarchant deposit are tholeiitic with transitional Zr/Y ratios (1.9–6.6), Lan/Smn ratios <1 (normalised to upper crust), and have primitive mantle extended rare earth elements profiles with slight light rare earth element (LREE)-enriched pat- terns with flat heavy REE (HREE), and weak to strong negative Nb, Zr, and Ti anomalies. Together, these geochemical features, coupled with an FIIIa signature, and existing mineralogical and Nd-Pb iso- tope data, are consistent with the rocks at the Lemarchant deposit having formed within a shallow (<1500 m) arc or migrating cross-arc seamount chain located within a young peri-continental rifted arc along the margin of Ganderia, within the Iapetus Ocean. The estimated shallow water emplace- ment of the deposit likely allowed boiling near or at the rock-sea water interface, ... |
format |
Article in Journal/Newspaper |
author |
Cloutier, Jonathan Piercey, Stephen J. Lode, Stefanie Vande Gutche, Michael Copeland, David A. |
author_facet |
Cloutier, Jonathan Piercey, Stephen J. Lode, Stefanie Vande Gutche, Michael Copeland, David A. |
author_sort |
Cloutier, Jonathan |
title |
Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada |
title_short |
Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada |
title_full |
Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada |
title_fullStr |
Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada |
title_full_unstemmed |
Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada |
title_sort |
lithostratigraphic and structural reconstruction of the zn-pb-cu-ag-au lemarchant volcanogenic massive sulphide (vms) deposit, tally pond group, central newfoundland, canada |
publishDate |
2017 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/lithostratigraphic-and-structural-reconstruction-of-the-znpbcuagau-lemarchant-volcanogenic-massive-sulphide-vms-deposit-tally-pond-group-central-newfoundland-canada(67522308-af92-46a4-87e3-fe5ce6599dcf).html https://doi.org/10.1016/j.oregeorev.2017.01.010 https://research-repository.st-andrews.ac.uk/bitstream/10023/12472/1/Cloutier_et_al_Lemarchant_VMS_deposit_final_with_figures.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Cloutier , J , Piercey , S J , Lode , S , Vande Gutche , M & Copeland , D A 2017 , ' Lithostratigraphic and structural reconstruction of the Zn-Pb-Cu-Ag-Au Lemarchant volcanogenic massive sulphide (VMS) deposit, Tally Pond group, central Newfoundland, Canada ' , Ore Geology Reviews , vol. 84 , pp. 154-173 . https://doi.org/10.1016/j.oregeorev.2017.01.010 |
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https://research-portal.st-andrews.ac.uk/en/researchoutput/lithostratigraphic-and-structural-reconstruction-of-the-znpbcuagau-lemarchant-volcanogenic-massive-sulphide-vms-deposit-tally-pond-group-central-newfoundland-canada(67522308-af92-46a4-87e3-fe5ce6599dcf).html |
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op_doi |
https://doi.org/10.1016/j.oregeorev.2017.01.010 |
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