Abstract
High-molecular-weight organic matter of six marl samples of the Mulhouse Basin has been characterized. The kerogen, asphaltene and polar fractions were analysed by flash pyrolysis-GC-(MS). In addition, sulphur-rich geomacromolecules present in the polar fractions were also desulphurized with Raney Ni and the released hydrocarbons were characterized by GC-MS. The kerogen
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