- Great Fissure eruption (Main Fracture)
- Northern Breakthrough (North Breach)
| Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp. Vergasova L P, Filatov S K, Serafimova E K, Semenova T F (1988) Ponomarevite K4Cu4OCl10 - a new mineral from volcanic sublimates, Doklady Akademii Nauk SSSR 300, 1197-1200 |
Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia