Geosciences Revision

Hydrocarbons originate in the___________contained in sediments.

Organic matter undergoes changes in_______________with increasing burial______________and____________.

The three steps in the transformation of organic matter to petroleum hydrocarbons are termed , and .

This table summarize the types of kerogen and its origin. What is a, b, c, and d?

Sandstone reservoirs accounts for 80% of all reservoirs and 60% of oil reserves. What is the main mineral in sandstone? (one answer)

Carbonate rocks are consist of _____________and/or _____________ .