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Formation of Kerogen and Evolution of Organic Matter - CHE 513

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Formation of Kerogen and Evolution of Organic Matter - CHE 513

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Questions and Answers

What is the color of kerogen?

Deep blue

Brownish black (correct)

Bright red

Dark green

Where is kerogen found?

In the atmosphere

In the source rock (correct)

In the oceans

In organic solvents

What is the relationship between kerogen and fossil fuel?

Kerogen represents an intermediate stage towards fossil fuel formation (correct)

Kerogen is the same as fossil fuel

Kerogen is used to produce fossil fuel

Kerogen is a byproduct of fossil fuel

What happens during the formation of kerogen?

The first phase of fossil fuel formation is completed Signup and view all the answers

Which of the following substances is NOT part of kerogen's chemical composition?

Silicon Signup and view all the answers

What is the diagenesis stage in the context of kerogen?

A transformation process involving dissolution and recombination of constituent materials Signup and view all the answers

What is the name of the gas produced during Diagenesis?

Methane Signup and view all the answers

At what stage does the H:C ratio decrease?

Catagenesis Signup and view all the answers

What is the solid form organic matter undergoes evolution into?

Coal Signup and view all the answers

Which gas is released from kerogen during Catagenesis?

Petroleum Signup and view all the answers

At what level of organic matter evolution is biogenic methane produced?

Diagenesis Signup and view all the answers

What type of bacteria are active in the reducing zone?

Sulphate-reducing bacteria Signup and view all the answers

What compound is formed when free sulfur in the reducing zone reacts with Iron (II) hydroxide?

Pyrite Signup and view all the answers

Which type of kerogen is rich in aliphatic compounds and oil prone?

Type II (Liptic Origin) Signup and view all the answers

What is the origin of Kerogen Type III?

High woody plants Signup and view all the answers

What does Thiobacillius do in the oxygenated zone?

Produces hydrogen sulfide Signup and view all the answers

What is CH4 commonly referred to as?

Thermogenic methane Signup and view all the answers