Tectonic regime of the area of the Sukhoi Log geological practice in the Middle Devonian and volcanic arcs in the basement of Western Siberia

Abstract

The article briefly describes current understanding of the tectonic regime of study area. It is related to the field geological practice of students of Industrial University of Tyumen. Study area is located at the western edge of Sukhoi Log town, Sverdlovsk region. The relevance of the work is related to the educational process. Information about the geological structure of the Devonian and Carboniferous formations of study area is collected. Some of the most characteristic outcrops of Paleozoic are described. Actual information about the Ural mountain genesis is given. The list of studied objects includes the outcrop of Eifelian reefal limestones near to the Shata waterfall and the ruins of a volcano. According to other researchers, it is a part of Middle Devonian volcanic arc, which was formed over the subduction zone. Here the Ordovician-Silurian Paleouralian Ocean were subducted under the collage of different-age terrains and paleocontinents (Paleozoic basement of the modern West Siberian Plate). A possible section across the Middle Devonian subduction zone of study area is presented. Similar objects associated with the oil and gas are known in the Pre-Jurassic basement of Western Siberia. The limestones and volcanic massifs exposed near the Sukhoi Log are good natural equivalents of the objects of oil and gas exploration in Western Siberia.