The Behaviour of Trace Elements in the Magmatic Members of the Singhbhum Granitic Complex
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The trends of variation of the trace elements and of the diadochic element ratios in these rocks conform broadly to those expected under conditions of fractional crystallisation of volatile-rich granitic melts. Distinctive trends of variation of several trace elements and diadochic element ratios with increasing differentiation were found for the three distinct but closely related phases into which these intrusive units may be classified on structural and petrologic grounds. Multivariate analyses and t-tests on 12 trace elements in samples belonging to the three phases indicate that the three phases of granites have significantly different trace element compositions.
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