Cameroon GCE O-Level Geology Practice Questions - Cameroon General Certificate Of Education Ordinary Level Geology (Code 0555) Exam

Continental crust is thicker, less dense, and granitic in composition (sial), whereas oceanic crust is thinner, denser, and basaltic (sima). Continental crust is thinner, denser, and basaltic, whereas oceanic crust is thicker, less dense, and granitic. Both continental and oceanic crust have identical average thicknesses of 35 km and identical peridotite compositions. Continental crust is composed exclusively of iron and nickel, while oceanic crust consists entirely of liquid silicate minerals.