In oxygen-poor environments, this organic matter was prevented from fully decomposing and was gradually covered by layers of mud and silt. However, it is stopped by impermeable layers of rock such as shale or salt, which act as caps.
Understanding Fractional Distillation of Oil Derivatives
Because it is less dense than water and rock, it migrates upward through porous formations like sandstone. These geological structures, called traps, are where oil accumulates in large quantities, waiting to be discovered.
Geological Traps: How Oil Collects in Reservoirs Oil does not remain in the source rock where it was created. The Transformation: Heat, Pressure, and Time As more sediment accumulated, the organic-rich layer was buried deeper.
Understanding Fractional Distillation and Oil Derivatives
The weight of the overlying rock created immense pressure, while the Earth’s internal heat raised the temperature. Kerogen, a waxy substance, broke down through chemical transformation, eventually cracking into the liquid hydrocarbons that migrated through porous rock.
More About Where did oil come from
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