Fig. 3: Bimodal pressure distribution of majoritic garnet inclusions in diamonds.
From: Sublithospheric diamond ages and the supercontinent cycle
The global compilation3,46 shown here represents minimum pressures, as these are uncorrected for clinopyroxene exsolution. Including the exsolution could affect pressure estimates by up to 7 GPa (ref. 4). The mode at lower pressures indicates a residence of 7–11 GPa, approximately 210–330 km depth, at the base of the lithosphere. The presence of exsolution of CaSiO3 and CaTiO3 (ref. 11) indicates a portion of the sublithospheric diamonds is stored at less than approximately 9 GPa.
