Diamond bearing kimberlites: source to surface

The structural link between the source and sink for diamond-bearing magmas is difficult to reconcile. However, recent studies have revealed that the likely host structures for these unusual magmas is linked to the development of sub-vertical transfer/transform faults that form during incipient extension of the continental crust and lithosphere. Whether or not a particular kimberlite contains diamonds depends, at least in part, on whether these structures intersect the diamond fertility window that exists in continental lithosphere. 3D analysis of the mantle using seismic tomography is combined with plate tectonic reconstructions and detailed structural analysis to show the link between source and sink for kimberlites in Africa and around the world