Characterization, classification, and mechanisms for mineralization of critical metal-bearing occurrences in southwestern Meguma Terrane, Canadian Appalachians

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dc.creator Welt, Naomi
dc.date.accessioned 2022-05-11T17:33:26Z
dc.date.available 2022-05-11T17:33:26Z
dc.date.issued 2022-04-11
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/30916
dc.description.abstract Multiple polymetallic vein-type occurrences with a suspected but unconfirmed genetic relationship and polymetallic critical metal-bearing assemblages occur in the Meguma Terrane metasediments in southwestern Nova Scotia. A multi-analytical approach integrating results from detailed petrography, scanning electron microscopy (SEM), Re-Os geochronology of arsenopyrite, U-Pb geochronology of apatite, Al-in-chlorite thermometry via electron probe micro-analyzer (EPMA), in-situ secondary ion mass spectrometry (SIMS) of sulfur isotopes in sulfides, and fluid inclusion systematics has allowed for the characterization and interpretation of mineralization at the Lansdowne (Sb-Pb-Zn-Co-Ag) and Cape St. Mary’s (Sb-Pb-As-Co-Ni-Bi-Au-REE) occurrences, and comparisons with the Nictaux Falls Dam occurrence (Co-Ni-As-Bi-Au). These results suggest a complex multi-stage mineralizing history for both occurrences due to reactivation of Neoacadian structures. Critical metal mineralization of the Lansdowne occurrence represents a newly classified occurrence type in Nova Scotia related to extensional tectonics from the breakup of Pangea in the Late-Triassic. en_CA
dc.description.provenance Submitted by Greg Hilliard (greg.hilliard@smu.ca) on 2022-05-11T17:33:26Z No. of bitstreams: 1 Welt_Naomi_MASTERS_2022.pdf: 10689909 bytes, checksum: 9eee9dda8728236a67de3501d24639d9 (MD5) en
dc.description.provenance Made available in DSpace on 2022-05-11T17:33:26Z (GMT). No. of bitstreams: 1 Welt_Naomi_MASTERS_2022.pdf: 10689909 bytes, checksum: 9eee9dda8728236a67de3501d24639d9 (MD5) Previous issue date: 2022-04-11 en
dc.language.iso en en_CA
dc.title Characterization, classification, and mechanisms for mineralization of critical metal-bearing occurrences in southwestern Meguma Terrane, Canadian Appalachians en_CA
dc.type Text en_CA
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