A tuff cone is a steep, cone-shaped volcanic landform built from the accumulation of volcanic ash and tephra ejected during a phreatomagmatic eruption, where magma interacts with water. Tuff cones are significant in volcanology for understanding the dynamics of explosive eruptions and the formation of volcanic landforms.
Source Heiken, G., & Wohletz, K. (1985). “Volcanic Ash.” University of California Press.