The existing layer will aventually sink and when a volcano or something erupts, it becomes solid and replaces the old crust.
Wheat earring and Edison
Plate tectonics
The earths crust is a part of the outermost layer.
Silicon is a mixture of the minerals of the earths crust. so.... silicon isn't something from the earths crust. -thanks for your question.
thinner and denser
how wide is the earths crust
Yes, the crust is the top layer. It continually changes.
Compression is a force that changes Earth's crust by squeezing rock until it folds or breaks.
The result is commonly known as an earthquake.
Contenintal Drift theory
A volcano is a vent (opening) in the earths crust through which molten materials erupts suddenly.
Plate tectonics
Wave Length.
The earths crust is a part of the outermost layer.
Silicon is a mixture of the minerals of the earths crust. so.... silicon isn't something from the earths crust. -thanks for your question.
thinner and denser
The Earths crust is approximately 650 km deep.
It breaks through the crust, and sometimes goes in the core, simply because all of the force and pressure from the plates rubbing together.