{"id":{"repo_id":"laurentian","oai_identifier":"oai:laurentian.scholaris.ca:10219/2622"},"canonical_url":"https://search.dev.ndltd.org/etd/laurentian/oai:laurentian.scholaris.ca:10219/2622","repository":{"repo_id":"laurentian","name":"Laurentian University","base_url":"https://laurentian.scholaris.ca/server/oai/request"},"display":{"title":"Gold mineralization in the Missanabie-Renabie district of the Wawa subprovince (Missanabie, Ontario, Canada)","abstract":"The geological processes responsible for the formation of hydrothermal gold deposits are often equivocal. For example, gold-bearing, shear zone-hosted laminated quartz veins in the Missanabie-Renabie gold district (Archean Wawa subprovince, Ontario, Canada) have been interpreted as both intrusion-related and metamorphic-hydrothermal in origin. The veins were mined at the past-producing Renabie mine, which yielded ~1.1 Moz of gold during production from 1941-1991. Whereas the intrusion-related interpretation links the veins to magmatic-hydrothermal fluids released during the crystallization and solidification of their hosting tonalitic pluton, the metamorphic interpretation suggests the veins were deposited from hydrothermal fluids produced during greenschist-facies metamorphism. This study integrates detailed structural field mapping with a number of geochemical techniques to unravel the evolution of the historically controversial ore zones. Results suggest that: (1) the laminated veins and their alteration envelopes pre-date regional deformation, and spatially localized later shear zones, which subsequently focused hydrothermal activity resulting in the formation multistage, composite ore zones; (2) the laminated veins formed during an early, intrusion-related gold event, and the later, co-spatial hydrothermal events are orogenic in nature, and thus more likely to be the products of metamorphic fluids; and (3) discriminating intrusion-related from orogenic events requires constraints provided by geological field mapping. Whereas pressure-temperature information from fluid inclusions and U-Pb geochronology facilitate discrimination, the geochemical signatures of the different hydrothermal events are largely overlapping and do not aid in classification.","abstract_html":"The geological processes responsible for the formation of hydrothermal gold deposits are often equivocal. For example, gold-bearing, shear zone-hosted laminated quartz veins in the Missanabie-Renabie gold district (Archean Wawa subprovince, Ontario, Canada) have been interpreted as both intrusion-related and metamorphic-hydrothermal in origin. The veins were mined at the past-producing Renabie mine, which yielded ~1.1 Moz of gold during production from 1941-1991. Whereas the intrusion-related interpretation links the veins to magmatic-hydrothermal fluids released during the crystallization and solidification of their hosting tonalitic pluton, the metamorphic interpretation suggests the veins were deposited from hydrothermal fluids produced during greenschist-facies metamorphism. This study integrates detailed structural field mapping with a number of geochemical techniques to unravel the evolution of the historically controversial ore zones. Results suggest that: (1) the laminated veins and their alteration envelopes pre-date regional deformation, and spatially localized later shear zones, which subsequently focused hydrothermal activity resulting in the formation multistage, composite ore zones; (2) the laminated veins formed during an early, intrusion-related gold event, and the later, co-spatial hydrothermal events are orogenic in nature, and thus more likely to be the products of metamorphic fluids; and (3) discriminating intrusion-related from orogenic events requires constraints provided by geological field mapping. Whereas pressure-temperature information from fluid inclusions and U-Pb geochronology facilitate discrimination, the geochemical signatures of the different hydrothermal events are largely overlapping and do not aid in classification.","abstract_has_math":false,"creators":["McDivitt, Jordan Alexander"],"institution":"Laurentian University of Sudbury","degree_name":"Master of Science (MSc) in Geology","degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-07-15","date_published":"2016-07-15","updated_at":"2026-08-21T16:45:55Z","subjects":["hydrothermal gold","economic geology","structural geology","geochemistry"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://laurentian.scholaris.ca/handle/10219/2622","outbound_label":"Repository record","outbound_source":"dc:identifier.uri"},"source_record":{"url":"https://laurentian.scholaris.ca/server/oai/request?verb=GetRecord&metadataPrefix=dim&identifier=oai%3Alaurentian.scholaris.ca%3A10219%2F2622","prefix":"dim"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["McDivitt, Jordan Alexander"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2016-09-15T13:36:23Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2016-09-15T13:36:23Z"]},{"key":"dc:date.issued","label":"Date","values":["2016-07-15"]},{"key":"dc:publisher","label":"Institution","values":["Laurentian University of Sudbury"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MSc) in Geology"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Laurentian University of Sudbury"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["hydrothermal gold","economic geology","structural geology","geochemistry"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://laurentian.scholaris.ca/handle/10219/2622"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The geological processes responsible for the formation of hydrothermal gold deposits are often equivocal. For example, gold-bearing, shear zone-hosted laminated quartz veins in the Missanabie-Renabie gold district (Archean Wawa subprovince, Ontario, Canada) have been interpreted as both intrusion-related and metamorphic-hydrothermal in origin. The veins were mined at the past-producing Renabie mine, which yielded ~1.1 Moz of gold during production from 1941-1991. Whereas the intrusion-related interpretation links the veins to magmatic-hydrothermal fluids released during the crystallization and solidification of their hosting tonalitic pluton, the metamorphic interpretation suggests the veins were deposited from hydrothermal fluids produced during greenschist-facies metamorphism. This study integrates detailed structural field mapping with a number of geochemical techniques to unravel the evolution of the historically controversial ore zones. Results suggest that: (1) the laminated veins and their alteration envelopes pre-date regional deformation, and spatially localized later shear zones, which subsequently focused hydrothermal activity resulting in the formation multistage, composite ore zones; (2) the laminated veins formed during an early, intrusion-related gold event, and the later, co-spatial hydrothermal events are orogenic in nature, and thus more likely to be the products of metamorphic fluids; and (3) discriminating intrusion-related from orogenic events requires constraints provided by geological field mapping. Whereas pressure-temperature information from fluid inclusions and U-Pb geochronology facilitate discrimination, the geochemical signatures of the different hydrothermal events are largely overlapping and do not aid in classification."]},{"key":"dc:title","label":"Title","values":["Gold mineralization in the Missanabie-Renabie district of the Wawa subprovince (Missanabie, Ontario, Canada)"]}]}],"canonical_facts":{"dc:creator":["McDivitt, Jordan Alexander"],"dc:date.accessioned":["2016-09-15T13:36:23Z"],"dc:date.available":["2016-09-15T13:36:23Z"],"dc:date.issued":["2016-07-15"],"dc:description.abstract":["The geological processes responsible for the formation of hydrothermal gold deposits are often equivocal. For example, gold-bearing, shear zone-hosted laminated quartz veins in the Missanabie-Renabie gold district (Archean Wawa subprovince, Ontario, Canada) have been interpreted as both intrusion-related and metamorphic-hydrothermal in origin. The veins were mined at the past-producing Renabie mine, which yielded ~1.1 Moz of gold during production from 1941-1991. Whereas the intrusion-related interpretation links the veins to magmatic-hydrothermal fluids released during the crystallization and solidification of their hosting tonalitic pluton, the metamorphic interpretation suggests the veins were deposited from hydrothermal fluids produced during greenschist-facies metamorphism. This study integrates detailed structural field mapping with a number of geochemical techniques to unravel the evolution of the historically controversial ore zones. Results suggest that: (1) the laminated veins and their alteration envelopes pre-date regional deformation, and spatially localized later shear zones, which subsequently focused hydrothermal activity resulting in the formation multistage, composite ore zones; (2) the laminated veins formed during an early, intrusion-related gold event, and the later, co-spatial hydrothermal events are orogenic in nature, and thus more likely to be the products of metamorphic fluids; and (3) discriminating intrusion-related from orogenic events requires constraints provided by geological field mapping. Whereas pressure-temperature information from fluid inclusions and U-Pb geochronology facilitate discrimination, the geochemical signatures of the different hydrothermal events are largely overlapping and do not aid in classification."],"dc:identifier.uri":["https://laurentian.scholaris.ca/handle/10219/2622"],"dc:language.iso":["en"],"dc:publisher":["Laurentian University of Sudbury"],"dc:subject":["hydrothermal gold","economic geology","structural geology","geochemistry"],"dc:title":["Gold mineralization in the Missanabie-Renabie district of the Wawa subprovince (Missanabie, Ontario, Canada)"],"dc:type":["Thesis"],"thesis:degree_name":["Master of Science (MSc) in Geology"],"thesis:institution_name":["Laurentian University of Sudbury"]},"updated_at":"2026-08-21T16:45:55Z"}