| Инд. авторы: | Abashev V.V., Metelkin D.V., Vernikovsky V.A, Vasyukova E.A, Mikhaltsov N.E. |
| Заглавие: | Early Cretaceous Basalts of the Franz Josef Land Archipelago: Correspondence of New(40)Ar/Ar-39 and Paleomagnetic Data |
| Библ. ссылка: | Abashev V.V., Metelkin D.V., Vernikovsky V.A, Vasyukova E.A, Mikhaltsov N.E. Early Cretaceous Basalts of the Franz Josef Land Archipelago: Correspondence of New(40)Ar/Ar-39 and Paleomagnetic Data // Doklady Earth Sciences. - 2020. - Vol.493. - Iss. 1. - P.495-498. - ISSN 1028-334X. - EISSN 1531-8354. |
| Внешние системы: | DOI: 10.1134/S1028334X2007003X; WoS: 000563445500003; |
| Реферат: | eng: The paper presents new(40)Ar/Ar-39 age determination of basalts from the Franz Josef Land archipelago. The obtained set of dates confirms the predominance of products only of Early Cretaceous age, which is also confirmed by results of paleomagnetic studies. Analysis of the entire set of geochronological data, taking into account information on their magnetic polarity, indicates that the interval of active magmatism occurred at the latest Barremian-Aptian and corresponds to the beginning of the Cretaceous Normal Superchron (C34n) at about 125 Ma. Significantly older age estimates are not related to the time of formation of the FJL basalts as a part of the High Arctic Large Igneous Province.
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| Ключевые слова: | MAGMATISM; Arctic; archipelago; Franz Josef Land; large igneous provinces; paleomagnetism; geochronology; GEOCHRONOLOGY; |
| Издано: | 2020 |
| Физ. характеристика: | с.495-498 |