Carbonatites are igneous rocks formed in the crust by fractional crystallization of carbonate-
rich parental melts that are mostly mantle derived. They dominantly consist of carbonate …

Continents, especially their Archean cores, are underlain by thick thermal boundary layers
that have been largely isolated from the convecting mantle over billion-year timescales, far …

Peridotite xenoliths from the Olmani cinder cone, northern Tanzania, possess distinctive
mineralogical and chemical features interpreted to result from interaction of ultra-refractory …

Understanding mantle melting above subduction zones requires an evaluation of the
behaviour of elements for which the mantle contribution greatly exceeds any subduction …

Over 700 apatite grains from a range of rock types have been analysed by laser-ablation
microprobe ICPMS for 28 trace elements, to investigate the potential usefulness of apatite as …

Petrological and geochemical data are presented for a suite of ultramafic xenoliths
(lherzolites and wehrlites) from La Grille volcano, Grande Comore island. These xenoliths …

In the 16 years since the Sedona Conference on the behaviour of trace elements in silicate
systems, numerous studies providing new data have filled many of the gaps in knowledge of …

New mineralogical and geochemical data from a suite of glass±apatite±amphibole±
phlogopite±carbonate-bearing spinel wehrlite, lherzolite and harzburgite xenoliths from the …

Carbonatites are formed from volatile-rich melts, commonly associated with a characteristic
hydrothermal footprint. However, studies of their fluid inclusions are relatively scarce and …

Fluid-inclusions in fibrous diamonds from Jwaneng (Botswana) contain water, carbonates,
silicates, apatite, and CO 2. Average compositions of fluids trapped in individual diamonds …