"Miguasha Marsh, Quebec, was heavily oiled in 1974 by Bunker C fuel oil spilled from the tanker Golden Robin. This marsh was not cleaned until the spring of 1975, when a number of cleanup procedures were carried out and tested. Of these, both manual and mechanical methods were utilized, as well as the technique of burning oiled debris and vegetation. This report represents the first portion of a two-part study examining the fate and biodegradation of residual Bunker C fuel oil in Miguasha Marsh sediments following the cleanup trials. Sediment analyses by gas liquid chromatography (GLC) and fluorescence were carried out on marsh sediments to determine the concentration and composition of residual hydrocarbons. Results were correlated with observations on survival and regrowth of marsh vegetation"--Abstract, page v.