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Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada: insights from Nd isotopes and lithogeochemistry

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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.

In: Journal of the Geological Society, Vol. 174, No. 6, 11.2017, p. 954-967.

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Lode, S, Piercey, SJ & 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

APA

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, 174(6), 954-967. https://doi.org/10.1144/jgs2017-008

Vancouver

Lode S, Piercey SJ, Cloutier J. 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. 2017 Nov;174(6):954-967. https://doi.org/10.1144/jgs2017-008

Author

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. In: Journal of the Geological Society. 2017 ; Vol. 174, No. 6. pp. 954-967.

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@article{614a57789001460cb662f2a77b5d6ff2,
title = "Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada: insights from Nd isotopes and lithogeochemistry",
abstract = "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.",
keywords = "Lemarchant deposit, VMS deposit, Nd isotopes, Lithogeochemistry, Newfoundland",
author = "Stefanie Lode and Piercey, {Stephen J.} and Jonathan Cloutier",
year = "2017",
month = "11",
doi = "10.1144/jgs2017-008",
language = "English",
volume = "174",
pages = "954--967",
journal = "Journal of the Geological Society",
issn = "0016-7649",
publisher = "GEOLOGICAL SOC PUBL HOUSE",
number = "6",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Provenance of exhalites associated with the Lemarchant volcanogenic massive sulphide (VMS) deposit, central Newfoundland, Canada

T2 - Journal of the Geological Society

AU - Lode, Stefanie

AU - Piercey, Stephen J.

AU - Cloutier, Jonathan

PY - 2017/11

Y1 - 2017/11

N2 - 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.

AB - 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.

KW - Lemarchant deposit

KW - VMS deposit

KW - Nd isotopes

KW - Lithogeochemistry

KW - Newfoundland

U2 - 10.1144/jgs2017-008

DO - 10.1144/jgs2017-008

M3 - Article

VL - 174

SP - 954

EP - 967

JO - Journal of the Geological Society

JF - Journal of the Geological Society

SN - 0016-7649

IS - 6

ER -

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