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The Data on the Composition and Age of the Kozlinogorsk GabbroAlkaline Granite Complex on the Western Slopeof the Southern Uralsстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 апреля 2016 г.
- Авторы: Tevelev Al V., Kosheleva I.A., Khotylev A.O., Prudnikov I.A., Tevelev Ark V.
- Журнал: Moscow University Geology Bulletin
- Том: 70
- Номер: 4
- Год издания: 2015
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 338
- Последняя страница: 349
- Аннотация: This paper describes the petrographic and geochemical features of gabbro and granitoids of the early Ordovician Kozlinogorsk plutonic complex and proposes new SHRIMP U–Pb zircon ages that were obtained for these rocks, viz., 476–470 Ma (early Ordovician). Two groups of plutonic rocks were distin guished: one of which corresponds to rocks of the normal series, while the other corresponds to rocks of higher alkalinity. The first group of rocks contains massifs in the western part of the complex, while the second contains massifs in the eastern part. Granitoids of both parts of the massif contain alkaline amphiboles. Nepheline syenites are noted among the rocks of the eastern area. It is assumed that the Kozlinogorsk com plex is a complex multiplefacies intrusion.
- Добавил в систему: Тевелев Александр Вениаминович