Ключевые слова
иридий
ЭПГ
стратиграфические уровни
аноксические события
Раздел
Статистика
Как цитировать
Аннотация
Проведен анализ опубликованных данных об аномалиях иридия и других элементов платиновой группы на разных стратиграфических уровнях фанерозоя. Приведены свидетельства гетерогенности этих аномалий и доводы разных авторов об их связи с импактными, вулканическими, палеоклиматическими и биотическими событиями. Большинство иридиевых аномалий совпадает с крупными вымираниями морских организмов. Показано, что в меловых палеоокеанических отложениях Восточной Камчатки (на п-ове Камчатский Мыс) фиксируются аномалии платиноидов на двух уровнях, соответствующих океанским аноксическим событиям OAE2 и MCE.
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