J. Armstrong, M. Wilson, R. Barnett, T. Nowicki, and B. Kjarsgaard, “Paragenesis of primary magmatic Sr-Ba-Mg-Ca carbonates from ultra-fresh hypabyssal kimberlite, Lac de Gras kimberlite field, Slave craton, NWT Canada”, IKC abstracts, vol. 8, Jun. 2003.