continental crust
Just as new oceanic crust forms at mid-ocean ridges, old oceanic crust is destroyed at subduction zones.
Pahoehoe.
New crust forms at divergent boundaries, where tectonic plates move away from each other. This process can occur in oceanic or continental crust.
The layer of rock that forms the Earth's outer skin is called the crust. It is divided into two types: the continental crust, which is thicker and less dense, and the oceanic crust, which is thinner and more dense.
They form when the oceanic crust goes under the Continental crust. The oceanic crust then forms the trenches through a process called subduction.
Garnet generally forms in the crust.
continental crust
The Earth's crust is the outermost layer of the Earth. It is divided into two types: continental crust, which forms the continents, and oceanic crust, which forms the ocean floors.
The crust that forms the continents is called continental crust. It is thicker and less dense than oceanic crust, composed mainly of granite rock. Continental crust is what makes up the landmasses on Earth's surface.
A rift forms.
Just as new oceanic crust forms at mid-ocean ridges, old oceanic crust is destroyed at subduction zones.
The Earth's thin rocky outer layer is called the crust. It is divided into two types: the continental crust, which forms the continents, and the oceanic crust, which forms the ocean basins.
Pahoehoe.
New crust forms at divergent boundaries, where tectonic plates move away from each other. This process can occur in oceanic or continental crust.
The athenosphere
No. Granite forms underground in the crust. If granitic magma reaches the surface and cools it forms a rock called rhyolite.