O'Hara, M.J. “Parageneses of Ultramafic Nodules in Basalts Contrasted With Those of Nodules in Kimberlites”. International Kimberlite Conference: Extended Abstracts 1 (August 13, 1973): 255–257. Accessed April 27, 2024. https://ikcabstracts.com/index.php/ikc/article/view/899.