5531, pp. The author is at the Bayerisches Geoinstitut, Universitt Bayreuth, D95440 Bayreuth, Germany.

In her Perspective, McCammon explains how tiny inclusions in diamonds from the top of the lower mantle has been focus of controversy, in particular regarding the question whether convection involves the whole mantle or is layered with boundary at km. The deep diamonds favor hybrid model where limited mixing occurs between the upper and lower mantle, but chemical inhomogeneities are preserved.

Next Perspectives GEOPHYSICSDeep Diamond Mysteries Catherine McCammon The boundary at km that separates the mantle transition zone from the lower mantle are helping to resolve these controversies. Table of Contents 5531, pp. The deep diamonds favor hybrid model where limited mixing occurs between the upper and lower mantle, but chemical inhomogeneities are preserved. The author is at the Bayerisches Geoinstitut, Universitt Bayreuth, D95440 Bayreuth, Germany. Science 2001Vol. Tags: deep diamond, diamonds