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TitreSulphide textural variations and multiphase ore emplacement in the Eagle's Nest Ni-Cu-(PGE) deposit, McFaulds Lake Greenstone Belt, Ontario
TéléchargerTéléchargement (publication entière)
AuteurZuccarelli, N; Lesher, C M; Houlé, M G
SourceTargeted Geoscience Initiative: 2017 report of activities, volume 2; par Rogers, N (éd.); Commission géologique du Canada, Dossier public 8373, 2018 p. 29-34, https://doi.org/10.4095/306598
Année2018
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/306598
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Rogers, N; (2018). Targeted Geoscience Initiative: 2017 report of activities, volume 2, Commission géologique du Canada, Dossier public 8373
Formatspdf
ProvinceOntario
SNRC43D/09; 43D/16
Lat/Long OENS -86.4069 -86.1119 52.7983 52.7064
Sujetsgisements minéraux; nickel; cuivre; chrome; gîtes volcanogènes; gîtes sulfureux; genèse des minerais; minéralisation; ceintures de roche verte; évolution tectonique; mise en place; magmatisme; intrusions; filons rocheux; métamorphisme; foliation; géologie du substratum rocheux; lithologie; roches ignées; roches intrusives; roches ultramafiques; pyroxénites; komatiites; tonalites; granodiorites; gabbros; roches métamorphiques; roches sédimentaires métamorphosées; roches volcaniques métamorphosées; chromite; caractéristiques structurales; failles; analyses de textures; pétrogenèse; analyses de carottes de sondage; assemblages de minéraux; Archéen; Province de Superior ; géologie économique; Précambrien; Protérozoïque
Illustrationslocation maps; geoscientific sketch maps; tables; photographs; photomicrographs
Consultation
Endroit
 
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
 
ProgrammeGestion de la connaissance de IGC, Initiative géoscientifique ciblée (IGC-5)
ProgrammeSystèmes de nickel-cuivre-EGP-chrome, Initiative géoscientifique ciblée (IGC-5)
Diffusé2018 03 01
Résumé(disponible en anglais seulement)
The McFaulds Lake greenstone belt, in addition to its world-class chromite endowment, also hosts significant magmatic Ni-Cu-(PGE) mineralization at the Eagle's Nest deposit. Mineralization at Eagle's Nest occurs in a dynamic system that contains multiple generations of sulphide textures, consistent with its interpretation as a magmatic feeder among a network of ultramafic intrusions. Massive sulphides and abundant leopard net-textured, oikocrystic net-textured, and inclusion net-textured sulphide mineralization formed first and were consolidated enough to be cross-cut by late-stage pyroxenite, creating disrupted net-textured sulphide and minor late-segregating massive/semi-massive sulphide melts. Resolving the fundamental characteristics and genesis of mineralization at Eagle's Nest will provide critical information about the evolution of large chromium and Ni-Cu-PGE ore systems associated with Archean komatiitic magmatism within the Superior Province.
GEOSCAN ID306598