Parasitic craters that emerged in 1932 at the foot of the Klyuchevskoi volcano in Kamchatka

Abstract

In the summer of 1932, the Leningrad Mining Museum organized an expedition to collect materials on the mineralogy and petrography of volcanoes located in the region of Petropavlovsk. At the time of departure, it became known that a parasitic crater had formed at the foot of the Klyuchevskoy volcano. Upon arrival in Petropavlovsk, it turned out that a second parasitic crater had formed there, which at that moment was active. The work plan was changed, and the author immediately left for the Klyuchevskoy volcano. New parasitic craters formed in the locality of Kirgurich. From the village of Klyuchi they are located 16 km to the south, and from the summit of the Klyuchevsky volcano 20–25 km to the northeast. In total, two craters appeared. The first was named Kirgurich, after the name of the locality, the second – Tuila. Kirgurich is located near the end of the birch forest zone at an absolute elevation not exceeding 600 m. Tuila arose later than Kirgurich and is located 1300 m to the northeast of it at an absolute elevation of 500–530 m. In terms of absolute elevation, among all the parasitic craters on the eastern and northern slopes of Klyuchevskaya, the new craters are situated the lowest. The new parasitic craters are located on the same line as the Kharchinsky and Zarechny volcanoes, on the one hand, and the old parasitic craters located to the south of the new ones, on the other. On this line, the new craters are closest to the old parasitic craters.

Read more

None