what type of rocks would you find on the continental crust
Earths Crust. Introduction. The Earths crust is the outermost layer of our planet and is less than 1% of the Earth's volume. The crust and the mantle contain different kinds of rocks making them chemically different. The upper mantle rocks are primarily peridotite.The crust contains of a variety of rocks. Igneous rocks, sedimentary rocks, and metamorphic rocks are the main categories of rocks found on the Earth's surface.hese rocks are iron rich, dense and heavier than continental crust rocks. Continental crust. When a continental crust and an oceanic crust meet they form a subduction zone. The heavier oceanic crust is forced beneath the lighter continental crust where it subducts into the lithosphere and melts.