Found above the mesosphere, it is separated from the oceanic crust by the Moho Discontinuity.
One theory of its existence claims it conducts heat downwards, fueling short off-axis liniments, and its viscosity can increase locally due to its anisotropy. Its existence was verified after the 1960 Chilean Great earthquake. Found above the mesosphere, it is separated from the oceanic crust by the Moho Discontinuity. Also called the Seismic Wave Guide or Low Velocity zone, for 10 points, name this fluid upper layer of the mantle, believed to be the region upon which tectonic plates float.
One theory of its existence claims it conducts heat downwards, fueling short off-axis liniments, and its viscosity can increase locally due to its anisotropy.
{asthenosphere} [accept {Low Velocity zone} or {Seismic Wave Guide} before mentioned]