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Top of Damn finger on Kunashir Island on the shore of the Pacific Ocean, Russia #234492958
Description
The island is made up of volcanic and crystalline rocks. Volcanic rocks andesites, basalts, volcanic ash, as well as sedimentary deposits shales, sands, pebbles, shell rocks, etc. took part in the structure of the island. Volcanic tuffs, which consist of clusters of rounded volcanic bombs or angular fragments of rocks cemented with ash, are very common. When the bomb tuffs are weathered, they break up into rounded boulders of various diameters. Traces of weathering can be observed on the coast of the island.