Start of the Wilson cycle at 3 Ga shown by diamonds from subcontinental mantle by Steven B. Shirey and Stephen H. Richardson (2011)

Uses diamond inclusions to propose a change in crustal recycling into the lithospheric mantle. The inferred onset interpretation remains distinct from the direct chemical observations. Science 333, 434–436. Abstract: pubmed.ncbi.nlm.nih.gov/21778395/