Erosion of unwelded pyroclastic flow deposits from Kurile Lake caldera formed these cliffs along the Ukanovich River, 10 km N of the caldera. Voluminous pyroclastic flows accompanying formation of the caldera about 7,600 years ago covered the area during one of the largest Holocene eruptions of the Kamchatka Peninsula.

Photo by Nikolai Smelov, 1996 (courtesy of Vera Ponomareva, Institute of Volcanic Geology and Geochemistry, Petropavlovsk).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Galleries: Volcanic Outcrops

Keywords: deposit | outcrop | pumice | ignimbrite

Kurile Lake