Dyke magmatism in the evolution of the transform active continental margin of the Siberian Craton in the Ediacaran

Autor: A. E. Vernikovskaya, V. A. Vernikovsky, N. Yu. Matushkin, P. I. Kadilnikov, D. V. Metelkin, Z. X. Li, S. A. Wilde, I. V. Romanova, E. A. Bogdanov
Rok vydání: 2019
Předmět:
Zdroj: Доклады Академии наук. 489:267-271
ISSN: 0869-5652
Popis: An Ediacaran complex of dyke rocks has been identified for the first time in the Yenisei Ridge orogen. These igneous rocks are represented by basic, intermediate and acid variants and formed in the conditions of the transform active continental margin at the stages of its development before and during the interruption of subduction and slab breakoff: from dykes of the picrodolerite - ​dolerite-quartz diorite - leucogranite association with age in the range of 626-623 Ma (U-Th-U isotope data for zircons, SHRIMP-II method, this work) up to adakite - gabbro-anorthosite magmatism at the end of the Ediacaran.
Databáze: OpenAIRE