Paleogeographic causes of the formation of mineral deposits on the east of the East European platform in the Permian period

Abstract

Abstract There took place cardinal paleo- and zoogeographic changes in the second half of the Permian period and the beginning of the Triassic on the east of the East European Platform. These changes have been reflected in the geochemical features and magnetic properties of the rocks, the isotopic composition of chemical elements, the characteristics of the fauna, as well as the nature of the sediments. Permian sediments complete have an extremely complex geological structure, are characterized by a diversity of lithologic-facies composition and occurring of specific minerals, which are considered indicators of various types of lithogenesis (sulfate-carbonate rocks, coals, copper sandstones, schists, etc.). Based on lithological and paleomagnetic studies, paleogeographic reconstructions were performed. They showed that one of the factors of Perm sedimentation and related processes of the formation of ore and nonmetallic minerals are global climatic changes caused by Carboniferous-Permian glaciation.