Question

If an area having 25 km thick crust is thickened by thrusting a 15 km thick slab of crust on top, how will the surface elevation change

Answer 1

If an area having 35 km thick crust is thickened by thrusting a 10 km thick slab of crust on top, how will the surface elevation change?

(1) Surface elevation will increase by ~ 1 km

(2) Surface elevation will increase by ~2 km

(3) Surface elevation will increase by ~3 km

(4) Surface elevation will decrease by ~1 km

(5) Surface elevation will decrease by ~2 km