Gerhard P. Brey

TL;DR: In this paper, Li abundances in inclusions in diamonds of peridotitic, websteritic, eclogitic (including garnets with majoritic component) and lower mantle paragenesis were determined with the ion microprobe.

TL;DR: In this article, the partitioning of a number of trace elements (Ba, Nb, Zr, Y, REE, etc.) between orthopyroxene, garnet, and carbonate-silicate melt was experimentally studied using a belt apparatus at pressures of 3.5-4.2 GPa and temperatures of 1300-1500°C.

TL;DR: In this paper, the authors measured trace-element concentrations of sulphide inclusions in diamonds from the Diavik mine by laser ablation ICPMS and found that the highly siderophile elements (HSE: Os, Ir, Ru, Rh, Pd, Pt, Re) behaved largely conservatively during fluid-induced metamorphism, which may point to a reducing and Cl-poor nature of the fluid.

TL;DR: Sixty-eight alluvial diamonds from three placer deposits in Brazil are characterized by similar crystal shapes, body colors, and surface textures, which are related to growth or resorption processes as discussed by the authors.