Re: Mitto Vein
in response to
by
posted on
Aug 04, 2008 09:41AM
Focused on becoming a near-term Gold Producer
Thanks for that, lots of info to digest.
Another Iron Oxide Copper Gold deposit ( IOCG ) in Labrador is discussed on the Natural Resources Canada site that mentions rare earth minerals and moly. Oh, and uranium! Still trying to sort out if this is relevant. For now, I just throw it at the wall and see what sticks. LOL!
"Alteration is hosted within sedimentary/volcanic sequences, as well as syn-Makkovikian plutonic bodies such as the Melody Hill granite. Most widespread are broad zones of Na-(Ca) alteration, characterized by albite-(actinolite-epidote-clinopyro... assemblages. In places, as at the Michelin deposit, uranium enrichment occurs with Na-(Ca)-rich metasomatic assemblages. Narrower zones of Fe-(K-Cu-Mo-U)-enrichment are also common and are characterized by concentrations of one or more of magnetite, hematite, mafic silicates (amphiboles, pyroxenes), pyrite, chalcopyrite and molybdenite. These zones are typically associated with uranium enrichment." (excerpts from Marshall et al., 2003). Sericite-hematite alteration zone with disseminated sulphides and abundant REE mineralization and hematite and carbonate-rich breccias also occur locally. Alteration, including magnetite alteration and mineralization at the Post Hill property are associated with the Kaipokok Bay shear zone.