Migration Oil moves through rock pores. This preservation is essential.
Accumulation of Organic Matter: The Essential Preservation Process
Organic Material: The Starting Ingredient The journey of oil begins long before rock layers can trap it. In environments lacking sufficient oxygen, this organic debris avoids complete decomposition.
High oxygen levels would result in the material being consumed entirely, leaving only trace amounts of carbon. Anoxic environment, high sedimentation rate.
Organic Matter Accumulation and Preservation in Anoxic Environments
The intense heat "cooks" the organic material, converting the solid kerogen into liquid and gaseous hydrocarbons. Accumulation Oil pools in a reservoir rock.
More About How oil is formed in the earth
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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.
