BackgroundMashkovtsev, the southernmost Holocene volcano of Kamchatka (Masurenkov 1980), forms a small peninsula on the Sea of Okhotsk near the southern tip of Kamchatka. The small 503-m-high basaltic stratovolcano has a postglacial summit cone (Sviatlovsky 1959). Two Holocene basaltic cones are located to the north. The age assignments of southern Kamchatkan volcanoes primarily reflect the work of Kozhemyaka, Ogorodov, and Litasov. In cases where radiometric ages are lacking, age assignments are based primarily on a geologic or sometimes strictly morphologic basis. The complex volcanic history of this region reflects several cycles of volcanism, with frequent overprinting of young basaltic cinder cones and small stratovolcanoes on eroded Pleistocene volcanoes. In general, when several Holocene cones are superimposed on an older edifice, the volcano is classified as Holocene; a single flank Holocene cone is listed separately and the older volcano is classified as Pleistocene.
Smithsonian / GVP volcano information
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