Option T4: GEOLOGICAL EVOLUTION OF BRITAIN Key Idea 2:The evidence for the northward drift of the British area through the Neoproterozoic and Phanerozoic Knowledge and Geological techniques Comments understanding and skills a. The palaeomagnetic field The use of palaeomagnetic Candidates should be direction in some British data to calculate aware of the role of rocks provides evidence palaeolatitudes for the British magnetic inclination, of latitude at the time of area, and interpretation of declination and polar magnetisation. apparent polar wandering wandering curves in curves to determine determining palaeolatitude changes palaeolatitude. through time. Rocks in Britain show Candidates should be able evidence of major to understand the climatic change through significance of changes in Phanerozoic time as a rock type (to include result of the northward limestone, sandstone and drift of the British area, coal) and fossils (to include exemplified by: corals, plants and microfossils) in determining Devonian and Permo- climate change through the Triassic semi-arid – and desert terrestrial Palaeozoic. and hypersaline marine deposits. Carboniferous, Jurassic and Cretaceous tropical, – shallow marine and terrestrial (coal) deposits.
Option T4: GEOLOGICAL EVOLUTION OF BRITAIN Key Idea 2:The evidence for the northward drift of the British area through the Neoproterozoic and Phanerozoic Knowledge and understanding Geological techniques and skills Comments a. The palaeomagnetic field direction in some British rocks provides evidence of latitude at the time of magnetisation. The use of palaeomagnetic data to calculate palaeolatitudes for the British area, and interpretation of apparent polar wandering curves to determine palaeolatitude changes through time. Candidates should be aware of the role of magnetic inclination, declination and polar wandering curves in determining palaeolatitude. Rocks in Britain show evidence of major climatic change through Phanerozoic time as a result of the northward drift of the British area, exemplified by: Devonian and Permo- Triassic – semi-arid and desert terrestrial and hypersaline marine deposits. Carboniferous, Jurassic and Cretaceous – tropical, shallow marine and terrestrial (coal) deposits. Candidates should be able to understand the significance of changes in rock type (to include limestone, sandstone and coal) and fossils (to include corals, plants and microfossils) in determining climate change through the Palaeozoic.
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