NMORBNormal Mid-Ocean Ridge Basalt
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The enrichments of LIL-elements and depletion of Nb, transitional characteristics between the NMORB and IAT, suggest supra-subduction zone tectonic setting for Muslim Bagh gabbros.
On an N-MORB-normalized plot of Sun and McDonough (1989), the high field strength (HFS)-elements (P, Zr, Sm, Ti, and Y) have a flat pattern parallel to NMORB.
The chondrite normalised REE plot shows a marked depletion in the HREE as compared to NMORB (Fig.
6a) and enrichments in LREEs and a marked depletion in the HREEs as compared to NMORB.
The samples of the basalt- chert unit show transitional characters and plotted in the overlapping fields of NMORB and VAB and those of the hyaloclastite mudstone unit plotted in WPB field (Fig.