Evidence for a 200 km thick diamond-bearing root beneath the Central Mackenzie Valley, Northwest Territories, Canada? Diamond indicator mineral geochemistry from the Horn Plateau and Trout Lake regions - Stéphane P. Poitras; D. Graham Pearson; Matthew F. Hardman; Thomas Stachel; Geoff M. Nowell; Scott Cairns (Mineralogy and Petrology, 2018)