Cratonic keels are
A)thinner under continents than oceans.
B)of even thickness everywhere.
C)thinnest under cratons.
D)thicker under continents than oceans.

Question

Quizplus · Accepted Answer

Cratonic keels are thicker under continents than oceans. This is because cratons are ancient, stable parts of the continental lithosphere that have been subjected to cooling and thickening over billions of years, making them thicker compared to the relatively thinner and more dynamic oceanic lithosphere.

Cratonic Keels Are