Bulletin of the Georgian National Academy of Sciences, vol.4, no 1, 2010: 85-91
A possible model of formation of the Madneuli copper-gold deposit incorporates a sequence of magmatic, tectonic and hydrothermal events occurring contemporaneously with sedimentation of host volcanosedimentary rocks in a shallow paleosea basin. Identification in these rocks of some biostratigraphic units (CC 20 Zone and CC 22c Subzone) of fossil nannoplanktons enabled the authors to conclude that formation of the Madneuli deposit occurred in Campanian age. Furthermore, dating of the major part of the geological events, proposed by the model, is narrowed down to a short time span of CC 22c nannoplankton Subzone of the Campanian stage. This age is consistent with earlier geochronological findings.
