Abstract
The a lka lic seri es of the Benom Complex, Pahang, consists of monzonite, syenite and gabbro ic rock. The contact between monzonite and gabbroic rock suggest that both magmas are mixed. Ev idence of the mix ing can be seen at the new roadcut outcrop a long the Benta township by-pass such as dispersion of K-fe ldspar from monzonite in the gabbroic rock. The end stage of this dispersion is the free sw imming of K-fe ldspar individual crystals in the gabbroic material. Thi s structure is interp reted as the result of mechanical transfer during the mafic-fe lsic magma interaction and mix ing event. All these fea tu res suggest an origin for the alka lic in termediate rocks of the Benom Complex invo lvi ng a magma mix ing process ..
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