Инд. авторы:	Popov V.K., Grebennikov A.V., Kuzmin Y.V., Glascock M.D., Nozdrachev E.A., Budnitsky S.Y., Vorobey I.E.
Заглавие:	Geochemistry of obsidian from Krasnoe Lake on the Chukchi Peninsula (Northeastern Siberia)
Библ. ссылка:	Popov V.K., Grebennikov A.V., Kuzmin Y.V., Glascock M.D., Nozdrachev E.A., Budnitsky S.Y., Vorobey I.E. Geochemistry of obsidian from Krasnoe Lake on the Chukchi Peninsula (Northeastern Siberia) // Doklady Earth Sciences. - 2017. - Vol.476. - Iss. 1. - P.1099-1104. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X17090288; SCOPUS: 2-s2.0-85030669301; WoS: 000412358700027;
Реферат:	eng: This report considers features of the geochemical composition of obsidian from beach sediments of Krasnoe Lake along the lower course of the Anadyr River, as well as from lava–pyroclastic rocks constituting the lake coastal outcrops and the surrounding branches of Rarytkin Ridge. The two geochemical types of obsidian, for the first time distinguished and researched, correspond in their chemical composition to lavas and ignimbrite-like tuffs of rhyolites from the Rarytkin area. The distinguished types represent the final stage of acidic volcanism in the West Kamchatkan–Koryak volcanic belt. It was assumed that the accumulation of obsidian in coastal pebble beds was caused by the erosion of extrusive domes and pyroclastic flows. The geochemical studies of obsidian artifacts from archeological sites of the regions of the Sea of Okhotsk, the Kolyma River, and the Chukchi Peninsula along with the correlation of geological and archeological samples show that Krasnoe Lake was an important source of “archeological” obsidian in Northeastern Siberia. © 2017, Pleiades Publishing, Ltd.
Ключевые слова:	Chemical compositions; Geochemical composition; Pyroclastic flows; Pyroclastic rocks; Sea of Okhotsk; Volcanic belt; Geochemistry; chemical composition; igneous geochemistry; obsidian; volcanic belt; volcanism; Anadyr Basin; Chukchi; Chukchi Peninsula; Kolyma River; Lake Krasnoye; Leningrad; Pacific Ocean; Sea of Okhotsk; Russian Federation; Archeological sites; Lakes; Beach sediments;
Издано:	2017
Физ. характеристика:	с.1099-1104