The Kimberlites of Central Africa: A Review

Geochemical and oxygen isotope signatures of mantle corundum megacrysts from the Mbuji-Mayi kimberlite, Democratic Republic of Congo, and the Changle alkali basalt, China

“…The Mbuji-Mayi diamond-bearing kimberlites located in the East Kasai province (Demaiffe et al, 1991) intruded at the Upper Cretaceous the Archean CongoKasai craton (Fig. 1a).…”

“…In the diamond-bearing Mbuji-Mayi kimberlites from the Democratic Republic of Congo (DRC), centimetre-sized gem-quality ruby and pink sapphire megacrysts occur along with diamond and other minerals (Demaiffe et al, 1991;Pivin et al, 2011). In the sapphire-bearing Changle alkali basalts from the People's Republic of China (PRC), two to three centimetre-sized dark blue or yellow to brown gem-quality sapphires occur with diopside, anorthoclase, magnetite, zircon and garnet megacrysts (Guo et al, 1996;Song and Hu, 2009).…”

An Introduction to the Precambrian Petroleum System in the Sankuru‐mbuji‐mayi‐lomami‐lovoy Basin, South‐central Democratic Republic of Congo

“…Uplift of the basin was accompanied by the intrusion of syn-rift chromiferous kimberlites (120-70 Ma) at locations between the Lubi and Mbuji-Mayi rivers ( Fig. 1) (Fieremans, 1977;Demaiffe and Fieremans, 1981;Demaiffe et al, 1991).…”

Quartz-bearing C–O–H fluid inclusions diamond: Retracing the pressure–temperature path in the mantle using calibrated high temperature IR spectroscopy

“…The Mbuji-Mayi kimberlite cluster from which the present diamond sample was obtained is located on the $2.7 Ga Kasai craton (e.g., Demaiffe et al, 1991) in south- Gervais and Piriou (1975) and Ouillon et al (2000), and A 2 -mode (black squares). (b) Pressure calculated from the uncorrected E-mode (black diamonds) which gives a ''low'' internal pressure, from the temperature corrected E-mode (open diamonds), which gives a ''high'' pressure, and from the A 2 -mode (black squares); the position of the A 2 mode could not be determined above 300°C.…”