Spatial-temporal evolution of Au-U deposits in the Ukrainian, Baltic and Aldan shields and the Precambrian Baikal Fold Area

AUTHORS: Mineeva, I.G., Makarov, A.I.

ABSTRACT: Au-U, U and Au deposits have been studied in rift structures of different age on the Ukrainian, Baltic, Aldan shields, and in the Precambrian Baikal fold area. The Precambrian and Phanerozoic Au-U deposits are genetically related to greenstone-hosted iron formations and carbonaceous schists that developed within the ancient rift structures. Recurrent evolution of iron ore-carbon systems as caused by polyphase rifting led to spatio-temporal changes in the genetic association of the Au-U deposits.

KEYWORDS: shields, rift, greenstone belts, iron formations, Au- deposits

EAN: SGA_2007_A005
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