Question

Loughshinny is a village in Ireland, about 15 km north of Dublin. This place has a very nice exposure of rocks from the late Carboniferous. A) What type of deformation are we looking at? B) How was this made? What factors are needed to make this deformation? C) What kind of rocks are these?

Answer 1

Answer:

A) What type of deformation are we looking at?

Ans A) We are looking at folded (ductile) deformation in the particular scenario. As we know high Temprature and Pressure results in ductile deformation.

B) How was this made? What factors are needed to make this deformation?

Ans. B) This was made by flexural slip folding. Factors need for this deformation are:

1. There must be very long duration of force.
2. Stiff and ductile rocks layering.
3. Deforming (compressional) force across the rock.

C) What kind of rocks are these?

Ans. C)

• Limestones (stiff)
• shale (ductile).

Thanks :)