Answer:
At about 50 kilometres (30 miles) below the Earth's surface, density measurements reach 200,000 pounds per square inch (13,790 bars). Due to the pressure from the above crust and mantle, lithosphere density generally increases as both age of the surrounding rock and depth increase.
Explanation:
The pressure values range from one to two times the lithostatic values (1ρgz to 2ρgz).
