Инд. авторы:	Chernova A.I., Metelkin D.V., Matushkin N.Y., Vernikovsky V.A., Travin A.V.
Заглавие:	Paleomagnetism and geochronology of volcanogenic-sedimentary rocks of Henrietta Island (De Long Archipelago, Arctic Ocean)
Библ. ссылка:	Chernova A.I., Metelkin D.V., Matushkin N.Y., Vernikovsky V.A., Travin A.V. Paleomagnetism and geochronology of volcanogenic-sedimentary rocks of Henrietta Island (De Long Archipelago, Arctic Ocean) // Doklady Earth Sciences. - 2017. - Vol.475. - Iss. 2. - P.849-853. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X17080025; SCOPUS: 2-s2.0-85028745973; WoS: 000408900300002;
Реферат:	eng: The paper presents results of geochronological and paleomagnetic studies of the volcanogenicsedimentary sequence of Henrietta Island in the East Siberian Sea. Our 40Ar/39Ar investigations confirm existing ideas that the bottom part of the section formed in the Ediacaran (~565 Ma) and that the basalts in the top of the section formed before the middle Cambrian (~520 Ma). Calculated paleomagnetic data confirm that during the rocks formation the territory of present-day Henrietta Island was located close to the 20° latitude, which lets us adjust some information published earlier on the age and natural remanent magnetization of the dolerite dikes of the nearby Jeannette Island. The new data also let us propose that a regional tectonothermal event, probably caused by accretion-related processes, took place at the beginning of the Ordovician. © 2017, Pleiades Publishing, Ltd.
Ключевые слова:	Russian Federation; Henrietta Island; De Long Islands; volcanic rock; sedimentary rock; paleomagnetism; natural remanent magnetization; geochronology; Ediacaran; depositional sequence; Cambrian; accretion; Sedimentary rocks; Tectono-thermal event; Paleomagnetic data; Ordovician; Natural remanent magnetization; Ediacaran; East-siberian seas; Cambrians; Arctic ocean; Geomagnetism; Geochronology; Sakha;
Издано:	2017
Физ. характеристика:	с.849-853