Chapter 2

Question 1

Earths Structure

Answer 1

1 - Solid inner iron core
2 - Liquid outer iron core
3 - Lower Mantle
4 - Transition Zone
5 - Asthenosphere
6 - Lithosphere
7 - Crust

Question 2

Rock Types

Answer 2

Igneous - Crystallisation of molten material
Metamorphic - Recrystallisation of older rocks
Sedimentary - Formed by accumulation of particles as sediments, followed by burial and compaction. Majority of hydrocarbon accumulations.

Question 3

Stratigraphy

Answer 3

Sediments accumulated in layers over time. Layers analysed.

Question 4

Geological Structures

Answer 4

Sedimentary rocks are deformed over time by the stress strain caused during burial or during plate tectonics.

Question 5

Petroleum Play

Answer 5

Determine where hydrocarbons are likely to occur.

Considerations - Rock (source, maturity, reservoir and seal) migration (primary, secondary, timing)