Occurrence of Petroleum
Answers
Answer:
Petroleum is a natural or mineral oil, which mainly occurs in well-defined areas. Now it has been proved that oil is formed by slow chemical and biochemical decomposition of the remains of organic matter entombed in sedimentary rocks. These rocks are marine or estuarine in origin
Answer:
Petroleum is a natural or mineral oil, which mainly occurs in well-defined areas. Now it has been proved that oil is formed by slow chemical and biochemical decomposition of the remains of organic matter entombed in sedimentary rocks. These rocks are marine or estuarine in origin.
This means that these organic remains, whether seaweeds, marine animal elements, or plant life such as diatoms, are entombed in the bottom sediments of shallow seas or estuaries under stagnant bottom, conditions which prevent complete decomposition before burial.
Subsequently, this organic material is transformed, perhaps by bacterial action and by age-long chemical change, into small globules of oil and gas. In course of geological time, as the original muds are being compacted into snales or marls, these globules, together with a much greater quantity of original water, are squeezed out and are lodged in any convenient porous layer, such as sand or porous limestone.
Hope it helps...
Mark the brainliest...