Abstract
ABSTRACT The aliphatic and aromatic fractions of a beach tar sample from the Mediterranean coast of Sidi Kreir, 37Km west of the city of Alexandria was analyzed by GC and GC/MS techniques. A complete analysis was carried out to investigate chemical composition changes, fate of weathered oil residue and possible source identification. The distribution of sterane, hopane, mono-and triaromatic steroids, C2 - and C3 - phenanthrenes and dibenzothiophenes and chrysenes, however, had remained unaltered by weathering. The beach tar possessed geochemical features consistent with a marine carbonate or evaporite source depositional environment under normal saline, reducing conditions. The GC fingerprints pointed to heavy fuel oil as a possible source for the tar sample.
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