Follwell, A.K., D.J. Schulze, H.H. Helmstaedt, and R.C. Peterson. “Ultramafic Xenoliths from the Timiskaming Kimberlite Cluster, Ontario, Canada”. International Kimberlite Conference: Extended Abstracts 90 (October 15, 2008). Accessed November 30, 2020. http://ikcabstracts.com/index.php/ikc/article/view/3558.