Trace metals in crude oils and beach tars from Nigerian coastline
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文摘
Concentrations of six metals (Pb, V, Ni, Fe, Mn and Cu) in Nigerian crude oils and beach tars (tar balls) were studied. The metal concentrations were generally higher in tar balls than in the crude oils. Vanadium was most abundant metal in both, whereas manganese and lead were the least abundant metals in the tar and oils respectively. Application of metal ratios especially and + V ratios, for tentative source identification indicates that the beach tar originates from a reducing environment (high ) and less mature (high + V) than the reference oil samples.