GEOSCAN, résultats de la recherche

Menu GEOSCAN


TitreRevised geological framework for the McFaulds Lake greenstone belt, Ontario
TéléchargerTéléchargement (publication entière)
AuteurMetsaranta, R T; Houlé, M G; McNicoll, V J; Kamo, S L
SourceTargeted Geoscience Initiative 4: Canadian nickel-copper-platinum group elements-chromium ore systems -- fertility, pathfinders, new and revised models; par Ames, D E (éd.); Houlé, M G (éd.); Commission géologique du Canada, Dossier public 7856, 2015 p. 61-73, https://doi.org/10.4095/296679
Année2015
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/296679
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Ames, D E; Houlé, M G; (2015). Targeted Geoscience Initiative 4: Canadian nickel-copper-platinum group elements-chromium ore systems -- fertility, pathfinders, new and revised models, Commission géologique du Canada, Dossier public 7856
Formatspdf
ProvinceOntario
SNRC43C; 43D; 43E; 43F/04
Lat/Long OENS -87.2250 -85.3903 53.3389 52.2044
Sujetsétablissement de modèles; nickel; platine; chrome; genèse des minerais; métallogénie; zones tectonostratigraphiques; roches ultramafiques; roches mafiques; roches intrusives mafiques; minéralisation; Province de Superior ; minéraux métalliques; pétrologie ignée et métamorphique; tectonique; stratigraphie; Précambrien
ProgrammeÉtude des gîtes magmatiques de Ni-Cu-EPG, Initiative géoscientifique ciblée (IGC-4)
Diffusé2015 06 22
Résumé(disponible en anglais seulement)
The McFaulds Lake greenstone belt (MLGB) is an extensive (>200 km long), arcuate-shaped, Meso- to Neoarchean, greenstone belt located in the central part of the Oxford-Stull domain of northern Ontario. The MLGB records a history of episodic volcanism, sedimentation, ultramafic-felsic intrusive activity and tectonism spanning from at least 2.83 to 2.66 Ga. Supracrustal rocks are tentatively subdivided into 7 tectonostratigraphic assemblages based on mapping, U-Pb geochronology, and geophysical interpretation. Mafic and ultramafic intrusive rocks comprise at least two distinct suites: a mafic-dominated, large layered intrusive suite represented by the Highbank-Fishtrap intrusive complex that was emplaced at ca. 2810 Ma, and an ultramafic to mafic intrusive suite termed the Ring of Fire intrusive suite. The latter comprises an ultramafic-dominated subsuite with significant Cr-Ni-Cu-PGE mineralization, and a mafic-dominated subsuite that contains significant Fe-Ti-V-(P) mineralization that was emplaced at ca. 2734 Ma.
GEOSCAN ID296679