A diatreme is a volcanic pipe or vent formed by a gas-charged explosive eruption that blasts through the Earth’s crust, creating a steep-sided, often funnel-shaped, breccia-filled conduit. Diatremes are commonly associated with kimberlite pipes, which can contain diamonds. They are significant in the study of volcanology and economic geology, particularly in diamond exploration.
Reference: Kjarsgaard, B. A., & Levinson, A. A. (2002). “Diamonds in Canada.” Geoscience Canada, 29(2), 71-84.