Initially, it may seem extremely daunting to be sitting in front of several thousand carats of
small diamonds, knowing that the likelihood of finding a diamond with a meaningful …

Earth's carbon, derived from planetesimals in the 1 AU region during accretion of the Solar
System, still retains similarities to carbon found in meteorites (Marty et al. 2013) even after …

Zircon megacrysts represent a late stage in the crystallisation of the magmas that produced
the low-Cr megacryst suite (Ol+ Opx+ Cpx+ Gnt+ Ilm+ Phl+ Zir) found in many kimberlites …

Most diamonds are metasomatic minerals, which means they grew from fluids or melts that
moved through solid mantle rocks and chemically interacted with them. The involvement of …

Micro-inclusions in diamonds from Zaire and Botswana differ in composition from the more
common large inclusions of the peridotitic or eclogitic assemblages. These sub-micrometre …

This paper reviews the evidence for deep continental structure and the arguments against
simple cooling-plate models as explanations of this structure. High-resolution seismological …

We have analyzed the major-and trace-element contents of minerals and whole rocks for
two peridotite xenoliths from SE Australia (one fertile, the other infertile) using both solution …

A suite of peridotite xenoliths from kimberlites intruding the Siberian craton indicate the
presence of lithospheric mantle over 150 km thick at 350 Ma. We report Sr-Nd isotope data …

In order to constrain the role of fluid phases during metasomatic processes in the upper
mantle, trace element partition coefficients for Ba, Sr, Pb, Nb, Ta, Zr, Hf, Ti, La, Ce, Sm, Tb …

Kimberlites from the Kaapvaal craton have sampled numerous mantle garnet lherzolites in
addition to garnet harzburgites. Trace element characteristics of constituent clinopyroxenes …