Uranium occurrences in connection with the tertiary vulcanites in the Cordilleras of Latin-America

During the past decade uranium occurrences have been discovered in the Cordilleras of Latin-America due to increasing prospecting campaigns. They represent a type of deposits relatively unknown and neglected so far. The uranium enrichments are bound to the Tertiary and mostly acid volcanism of the Cordilleras. They occur mostly in the very vulcanites or in directly adjacent clastic sediment series. Deposits of this type are scattered from Mexico over Equador, Peru and Bolivia down to Argentina. Due to the enormous mass distribution of such vulcanites in the Cordilleras of North and South America, the potential reserves in uranium are regarded as being considerable and will even gain economic significance in the near future. (orig.) 891 HK