Figure 2 | Scientific Reports

Figure 2

From: Oceanic and super-deep continental diamonds share a transition zone origin and mantle plume transportation

Figure 2

Carbon isotope composition of diamonds (expressed as δ13C relative to Pee Dee Belemnite). (a) Worldwide lithospheric continental diamonds12 showing eclogitic (pink) and peridotitic diamonds (green). (b) Super-deep continental diamonds8,9,10,11 from Juina-5, Jagersfontein, Monastery, Sao Luis and Kankan. Also shown are the carbon isotope ranges for the cores and rims of the Sao-Luis8 and Juina-510 diamonds, and data reported for seven fragments of CLIPPIR diamonds36. (c) Oceanic diamonds from Mirdirta32, Pozanti-Karsanti44 and Ray-Iz30. The carbon isotope range for the mantle is from Deines48, the ranges for carbonates and organic matter are from studies of sedimentary rocks of the entire geological record49,50,51.

Back to article page