SHRIMP U-Pb dating of a perovskite inclusion in diamond: evidence for a syneruption age for diamond formation, Sytykanskaya kimberlite pipe, Yakutia region, Siberia - Hamilton, M.A.; Sobolev, N.V.; Stern, R.A.; Pearson, D.G. (International Kimberlite Conference: Extended Abstracts, 2003)