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The Lehmann discontinuity, named after seismologist Inge Lehmann, is the discontinuity in seismic velocity near a depth of 220 km,

See also: Error: Template must be given at least one article name which is still debated. It appears beneath continents, but not usually beneath oceans, and does not readily appear in globally-averaged studies. Several explanations have been proposed; a lower limit to the pliable aesthenosphere, a phase change, and most plausibly, depth-variation in the shear wave anisotropy. The Lehmann discontinuity at one time referred to the inner core-outer core boundary, as Inge Lehmann discovered the inner core, but that usage is no longer current.

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nl:Lehmanndiscontinuïteit pl:Nieciągłość Lehmann pt:Descontinuidade de Lehmannsl:Lehmannova nezveznost tr:Lehman Süreksizliği vi:Điểm gián đoạn Lehmann