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TitreApplication of iron-oxide discriminant diagrams in mineral exploration
AuteurBeaudoin, G; Dupuis, C; McClenaghan, M B; Blain, J; McMartin, I
SourceIndicator mineral methods in mineral exploration; par McClenaghan, M B (éd.); Peuraniemi, V (éd.); Lehtonen, M (éd.); B92-4, 2011 p. 35-39
Année2011
Séries alt.Secteur des sciences de la Terre, Contribution externe 20110182
Réunion25th International Applied Geochemistry Symposium; Rovaniemi; FI; août 22-26, 2011
Documentpublication en série
Lang.anglais
Mediapapier; en ligne; numérique
Référence reliéeCette publication est reliée à Beaudoin, G; Beaudoin, G; Beaudoin, G; (2014). Application of iron-oxide chemistry in mineral exploration, Application of indicator mineral methods to mineral exploration, Commission géologique du Canada, Dossier public 7553
Formatspdf
ProvinceManitoba
SNRC63I; 63J; 63O; 63P
Lat/Long OENS-100.0000 -96.0000 56.0000 54.0000
Lat/Long OENS -16.0000 -15.0000 19.0000 18.0000
Sujetséléments d'indice; méthodes analytiques; prospection minière; oxydes de fer; géochimie du till; tills; magnetite; hématite; sables noirs; Ceinture de Thompson Nickel ; géochimie; pétrologie ignée et métamorphique
Illustrationsdiscriminant diagrams
ProgrammeBases de données couvrant les trois territoires (minéraux indicateurs), GEM : La géocartographie de l'énergie et des minéraux
Liens25th International Applied Geochemistry Symposium
LiensOnline - En ligne
Résumé(disponible en anglais seulement)
Iron oxides (hematite and magnetite) are common minerals found in magmatic and metamorphic rocks and can be major to accessory minerals in a range of mineral deposit types. The range in chemical composition of iron oxides in the various deposit types is related to different environments and conditions of formation, such that this compositional variety can be used to fingerprint mineral deposit types. The natural variation of mineral chemistry of iron oxides from a range of mineral deposits will be reviewed, from which we have derived discriminant diagrams using the trace element chemistry of magnetite and hematite. These diagrams are useful to distinguish various types of mineral deposits and provide a method to identify the sources of grains from the ferromagnetic fraction of heavy mineral concentrates from bedrock and derived glacial sediment samples. Application of the method will be illustrated by case studies for Ni-Cu deposits in the Thompson Nickel Belt (Canada), for iron oxide Cu-Au deposits in the Great Bear Magmatic Zone (Canada), and for regional metallogeny in Mauritania.
GEOSCAN ID289228