Oil and natural gas form from organic matter in anoxic seafloor sediments, which is heated and compacted to form hydrocarbons, accumulating in porous rocks.
Oil and natural gas form from organic matter buried in anoxic seafloor sediments. Compaction and heat convert this matter into hydrocarbons, then oil and gas, which accumulate in porous rocks.
| Front | Overview of calcium carbonate formation in oceans: |
|---|---|
| Back | atmospheric CO2, aqueous CO2, carbonic acid, bicarbonate, carbonate, calcium carbonate |
Tags: 4_3_carbon_cycling
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