VOLCAN OUZON

In the Kronotski Natural Park, inscribed on the UNESCO World Heritage List, Caldeiras and Geysernaïa caldeiras form the largest Kamchatka geothermal zone. The pebble of the Ouzon volcano, measuring 9 km over 12 km, is the largest of the peninsula. It formed in the middle of the Pleistocene following several major eruptions that destroyed the cone over 3 000 m high. Ouzon is a kind of natural laboratory: many métallogènes minerals (arsenic, mercury, copper, zinc, etc.) were discovered in its groundwater flowing to the surface. As water cools, these minerals are deposited around the sources of ore.