Fig. 6: Diamond potential of kimberlites based on lithospheric thickness and extent of kimberlite-related metasomatism.
From: Diamond preservation in the lithospheric mantle recorded by olivine in kimberlites
a High diamond grades are associated with thick lithospheric roots minimally affected by kimberlite metasomatism. b Increasing kimberlite metasomatism dissolves diamonds and lowers diamond grades in the ascending kimberlite magmas. c Thin lithosphere is associated with low diamond grades regardless of the extent of kimberlite metasomatism.
