Is continental rocks more dense than the rocks of the oceanic crust?
No, the oceanic crust is denser than the continental crust.
Oceanic crust is more dense than continental crust. As a result, over time, continental crust is harder to "recycle". Rocks are recycled when they are subducted and remelted. Since continental crust is harder to subduct (it wants to keep floating), it is not recycled as much as oceanic crust, which is dense and will sink and remelt.
Oceanic crust is mostly basaltic, which is denser, while continental crust is made from mostly basaltic and sedimentary rocks, which are less dense. This difference in density is why the oceanic crust sinks lower (thus the oceans) and the continental crust rides higher (thus the continents) on the mantle.
The oceanic crust is composed mainly of basalt, rich in iron and magnesium. The continental crust is composed mainly of granite, rich in aluminum. Although they are both rich in oxygen and silicon, the rocks that compose the oceanic crust are of higher density than the rocks that compose the continental crust.
Oceanic crust is created on Mid ocean ridges and of basaltic composition. Oceanic crust is on average comparatively young as it is subducted into the mantle in subduction zones. Oceanic crust is denser and thinner than average continental crust. The composition and age distribution of continental crust is much more complicated than that of oceanic crust. It is on average less dense and much thicker than oceanic crust and its composition is roughly that of…
They are younger because they are located near spreading centers. At spreading centers, upwelling magma forms oceanic crust. At convergent plate boundaries, oceanic lithosphere subducts under continental lithosphere because it is more dense. The constant recycling of oceanic crust is why it is younger than continental crust.