What Is Lehmann Discontinuity?
The Lehmann Discontinuity Is an Abrupt Increase of P-Wave and S-Wave Velocities at the Depth of 220 Km, Discovered by Seismologist Inge Lehmann. the Thickness...
The Lehmann discontinuity is an abrupt increase of P-wave and S-wave velocities at the depth of 220 km, discovered by seismologist Inge Lehmann. The thickness is 220 km. It appears beneath continents, but not usually beneath oceans, and does not readily appear in globally averaged studies.
Where is the Lehmann discontinuity?
The boundary between the inner and outer core, which occurs at a depth of roughly 5,100 km (about 3,200 miles), is known as the Lehmann discontinuity.
Why is Lehmann discontinuity important?
The nature of the Lehmann discontinuity is of major importance for our understanding of upper mantle composition and flow. ... Known phase transitions in the upper mantle above 400 km depth all have positive Clapeyron slopes.
James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.
