They are less dense that is why there is no subduction zone
density
continental shelf
The continental rise.
The continental rise is between the continental shelf and the abyssal plain.LittoralLitoral (alternative spelling)Intertidal
continental margin
the continental crust is the plate crust formed under the continent (less density) as opposed to oceanic crustformed under the ocean(higher density)
Oceanic crust is denser than continental crust because it is primarily composed of basalt, which is a mafic rock with a higher density than the felsic rocks that make up continental crust. Additionally, oceanic crust is thinner and younger than continental crust, contributing to its higher density.
The density of continental plates typically ranges from about 2.5 to 3.0 grams per cubic centimeter (g/cm³). This density is primarily due to the composition of the rocks that make up the continental crust, which is primarily granitic and less dense than the basaltic rocks of oceanic plates. The lower density of continental plates contributes to their buoyancy, allowing them to "float" higher on the mantle compared to denser oceanic plates.
The specific gravity, on average, of continental crust is 2.7. For oceanic crust, it's 2.9.
Granitic rock forms the majority of the continental crust.
The continental shelf, continental slope, and continental rise combine to form the continental margin.
Oceanic crust is composed of minerals with a higher density than those found in continental crustal rock.
The density of the continental crust typically ranges from about 2.6 to 3.0 grams per cubic centimeter. This variation depends on the composition and thickness of the crust, with granitic rocks generally being less dense than basaltic rocks found in oceanic crust. The average density of the continental crust is often considered to be around 2.7 g/cm³.
If my sources are correct, it was made by continental-continental. :)
density
A continental margin is NOT a part of a continent. It is the submerged outer edge of a continent that includes the continental shelf, continental slope, and continental rise.
The three parts of the continental margins are the Continental shelf, the Continental slope, and the Continental rise.