Olivine is the dominant component in kimberlites (~ 40–60 vol%), where it occurs as
individual grains of variable size (> 1 cm to< 100 μm) of xenocrystic and magmatic origin …

Abstract Models for a xenocryst origin for kimberlite olivines emphasise the similarity
between their core compositions and those in mantle peridotites. While this permits a …

Quantifying the compositional evolution of mantle-derived melts from source to surface is
fundamental for constraining the nature of primary melts and deep Earth composition …

This study provides an experimental calibration of the empirical Al-in-olivine thermometer for
mantle peridotites proposed by De Hoog et al.(2010). We report Al concentrations measured …

In this study, we discuss mineral chemistry data, melt inclusion study results, and report Ar–
Ar phlogopite age for the aillikite dikes of the Arbarastakh alkaline-carbonatite complex on …

Elucidating the origin, composition and physical properties of primary kimberlite melts is
crucial to our understanding of their source, petrogenesis, ascent mechanisms and …

Olivine in kimberlites can provide unique insights into magma petrogenesis, because it is
the most abundant xenocrystic phase and a stable magmatic product over most of the liquid …

Olivines are the dominant phase of kimberlites and the majority of grains display distinct
compositional zoning with xenocrystic cores surrounded by magmatic rims. Previous work …

Abstract Sierra Leone contains two Jurassic-aged diamondiferous kimberlite clusters,
namely Koidu and Tongo-Tonguma (hereafter referred to as Tongo), consisting of eruptive …

The diamond potential of kimberlites is generally determined using indicator minerals (ie,
xenocrysts), entrained by the parent magma while ascending through the sub-continental …