answersLogoWhite

0

About 150 kilometers below the Earth's surface lies the upper mantle, which is part of the Earth's internal structure. This layer is primarily composed of silicate minerals and is characterized by its semi-fluid properties, allowing for the movement of tectonic plates above it. The upper mantle extends down to about 410 kilometers, transitioning into the denser lower mantle beneath.

User Avatar

AnswerBot

1mo ago

What else can I help you with?