Behaviour of Trace Elements During the Differentiation of the Basic Igneous Rocks in Cuddapah Basin

The behaviour of V, Cr, Ga, Sc, Y, Co, Ni, Cu, Ba and Sr, from the basic igneous rocks and their important constituent minerals viz. pyroxenes and plagioclases, of the Cuddapah basin has been discussed with respect to the prevailing physico-chemical conditions, relative mobility, their relation with the corresponding major elements and their choice for appropriate mineral structures. It has been pointed out that in many respects the present behaviour of trace elements is not in keeping with the findings of some of the earlier workers. Even on the basis of the hypothesis of electronegativity as pointed out by Ringwood, the entire implications of the present behaviour of the trace elements cannot be fully and satisfactorily explained. The present data however, to some extent support Goldschmidt's rules of camouflage, capture and admission. In general the trace elements' behaviour in the Cuddapah intrusives is similar to that of other tholeiitic provinces.