Anoxic Environments and Preservation For organic material to contribute to oil formation, the setting is critical. However, oil does not flow freely.
From Plankton To Crude Oil Process: The Transformation and Migration of Hydrocarbons
Anoxic environment, high sedimentation rate. Transformation Kerogen converts into hydrocarbons.
This specific temperature range, generally between 60°C and 120°C, is known as the "oil window. Migration Oil moves through rock pores.
From Plankton To Crude Oil: The Transformation and Migration Process
The intense heat "cooks" the organic material, converting the solid kerogen into liquid and gaseous hydrocarbons. It moves through tiny pores in sandstone or limestone until it encounters an impermeable layer, such as shale or salt.
More About How oil is formed in the earth
Looking at How oil is formed in the earth from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on How oil is formed in the earth can make the topic easier to follow by connecting earlier points with a few simple takeaways.
