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Nb-mineralization of the Oka Carbonatite Complex, Quebec
A representative collection of minerals &om two niobium deposits found within the Oka carbonatite complex: the Bond Zone deposit; and the NIOC AN deposit, were analysed using an electron microprobe, and compared with ...
Sibley Group : a lithostratigraphic, geochemical, and paleomagnetic study
The Sibley Group is an unmetamorphosed Mesoproterozoic red bed sequence, commonly flat lying, that formed in an intracratonic basin between 1450 Ma and 1500 Ma. It covers an area o f 15,000 km^, and reaches a total ...