The carbon solubility in a Mid-Ocean Ridge Basaltic (MORB) melt was determined by equilibrating natural glass with CO2 produced by decomposition of silver oxalate. These experiments were performed in closed platinum capsules ...

Microdiamonds from garnet clinopyroxenites of the Kokchetav massif (northern Kazakhstan) and associated alluvial diamonds have been investigated using infrared spectroscopy. All diamonds have high nitrogen contents (from ...

In the following article we have reviewed the mineralogical, chemical, physical and isotopic evidence concerning the growth of coated diamonds, and have combined it to produce a comprehensive model for their formation.We ...

In a diamond from New South Wales (Australia), cubic and octahedral growth sectors, as identified by cathodoluminescence (CL), show slight differences in N-contents of 29 and 42 ppm respectively but no significant differences ...

For the first time, δ13C–δ15N of more than 150 diamonds of known paragenesis, originating from different localities are reported. These coupled δ13C–δ15N determinations argue against a direct formation from subducted ...

We have determined δ18O in 120 chemically well-documented samples of lavas characteristic of the major areas and types of volcanism, most of which Quaternary in age, from the subduction zone volcanism in the Kamchatka ...