Siwana Ring Complex (SRC) is most spectacular and spatially related Ring Complex of Neoproterozoic Malani Igneous Suite (MIS) . Basically, there are two accepted and Preferred model for the geodynamic system of MIS, one is plume related extensional model and another is subduction related model. The high concentration of REE-Nb-U in Siwana granitoids is due to crustal assimilation of Protolith melt that was generated through a mantle plume. The anorogenic character of rock-types of SRC ruled out any External fluid role in the enrichment of these incompatible elements. Therefore, to understand the magmatic evolution, tectonic affinity and geodynamic of SRC, the plume related extensional model should be very preferable.

Thanks for the reply @ Dr. Naveen Kumar. Can you please mail me your full text of your Paper Kumar et al. 2020 at [email protected]