Tectonic Plates are floating on the semi-molten Mantle. Currents in the molten layer, eruptions of new lava round the edges, and the forming of deep ocean volcanic ridges, help to move the plates across the Earth's surface.
upper part of the mantle and end of the crust.
Tectonic plates are floating on the magma (semi-molten rocks) of the mantle layer. Therefore, they form the crust layer of the Earth.
The plates (continental and ocean plates) ride atop the asthenosphere, a layer of viscous rock in the upper mantle beneath the crust.
the Lithosphere or Lithospheric Plates
the Lithosphere or Lithospheric Plates
the Lithosphere or Lithospheric Plates
the Lithosphere or Lithospheric Plates
the Lithosphere or Lithospheric Plates
Mantle plumes are in the mantle, BELOW the Earth's crust. The circulation of heat from the lower mantle to the upper mantle can cause "hot spots" in the overlying crust, heating the magma in the areas.
The scientific name for the Earth's upper mantle is "asthenosphere." It is a layer of the Earth located beneath the lithosphere and is characterized by its partially molten state, which allows for the movement of tectonic plates.
i believe it is the crust and upper mantle...
Earths lithosphere is made up of upper mantle. The earths lithosphere is broken into separate sections and it is called as tectonic plates or plate tectonics.