[[file:oiloil-and-oilsource-rock-correlations_fig8-19.png|300px|left|thumb|{{figure number|15}}Gas chromatogram of saturated hydrocarbons from a source rock sample contaminated with bits of plastic.]] | [[file:oiloil-and-oilsource-rock-correlations_fig8-19.png|300px|left|thumb|{{figure number|15}}Gas chromatogram of saturated hydrocarbons from a source rock sample contaminated with bits of plastic.]] |