NW Foreland Test

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Give names and approx ages of the two main deformation events in the Lewisian Complex?
Scourian 2700 Ma Laxfordian 1750 Ma
1 of 5
What is an orthogneiss?
Igneous protolith
2 of 5
What was the source of the sediment of the Torridon Group i.e. upper part of Torridonian (source age & location)?
Zircon ages are from 1.8 to 1.1 Ma and Palaeocurrent directions suggest that the source was cratonic cover from the W to NW
3 of 5
What environment was the Lower Cambrian of NW Scotland deposited in?
Shallow marine – possibly barrier island or inter tidal
4 of 5
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5 of 5

Other cards in this set

Card 2

Front

What is an orthogneiss?

Back

Igneous protolith

Card 3

Front

What was the source of the sediment of the Torridon Group i.e. upper part of Torridonian (source age & location)?

Back

Preview of the front of card 3

Card 4

Front

What environment was the Lower Cambrian of NW Scotland deposited in?

Back

Preview of the front of card 4

Card 5

Front

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Back

Preview of the front of card 5

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