Large Igneous Province of about 1750 Ma in the Siberian Craton

摘要

According to traditional views of the formation of the Siberian Craton (see review in [1]), it is assumed that its formation completed in the Late Paleoprotero-zoic. The indicators of the completion of the basic processes of the main superterranes amalgamation in the craton (Fig. 1) are massifs of postcollision granitoids (1860-1840 Ma), widespread within the uplifts of the Achaean basement and the Paleoproterozoic collision zones. But until recently, it was assumed that the subsequent magmatic events, characterized by the formation of numerous extended dyke swarms within different parts of the craton, manifested sporadically and did not have a distinct interconnection between them.