Rossing deposit, Namibia

Intrusive Deposits. Deposits included in the intmsive deposit type are those associated with intmsive or anatectic rocks of different chemical composition, eg, alaskite, granite, monzonite, peralkaline syenite, carbonatite, and pegmatite. Examples include the uranium occurrences in the porphyry copper deposits such as Bingham Canyon and Twin Butte in the United States, the Rossing Deposit in Namibia, and Ilimaussaq deposit in Greenland, Palabora in South Africa, and the deposits in the Bancroft area, Canada (15). 

The largest and only currently economic deposit is the Rossing deposit in Namibia, but smaller deposits exist, such as those at Crocker Well, South Australia, Serido Province, Brazil, Saskatchewan and Manitoba Provinces, Canada, Travancore, India, Kenema, Sierra Leone, Wheeler Basin, U.S.A., and localities in Zimbabwe. 

Intrusive deposits are associated with intrusive rocks, including alaskite, granite, pegmatite, and monzonites. Major world deposits include Rossing (Namibia) and Palabora (South Africa). 

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