Bitumen
- organic material in sed rocks which is SOLUBLE in ordinary organic solvents
- oil-like part of OM (mobile)
- product of the partial conversion of kerogen as a result of aging temperature and passing time
- lower molecular weight
Kerogen
- INSOLUBLE in ordinary organic solvents
- carbon, hydrogen, oxygen, nitrogen and sulfur
- most important
Types of Kerogen
Maceral Kerogen Type Original OM
Alginite I freshwater algae
Exinite II pollen spores
Cutinite II land-plant cuticle
Resinite II land-plant resins
Liptinite II all land-plant lipids; marine algae
Vitrinite III woody & cellulosic material from land plants
Inertinite IV charcoal; highly-oxidized; reworked materials of any origin
Detailed notes to follow......
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