Open AccessNEW DATA ON THE AGE AND MATERIAL COMPOSITION OF THE ROCKS OF THE PRE-JURASSIC BASE OF THE TAISKO-BARABINSK FACIES REGION BASED IN THE UVATSKY DISTRICT OF THE SOUTH OF THE TYUMEN REGION
Author(s) -
Olga V. Elisheva,
Maria N. Melnikova
Publication year - 2021
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2021-2-1-72-82
Subject(s) - facies , geology , paleozoic , sedimentary rock , mesozoic , tectonics , paleontology , geochemistry , structural basin
In the West Siberia the structural-facies zoning of pre-Jurassic rocks is based on 2 factors: structural and tectonic structure and formation composition of rocks. The central areas of the Uvat district are located within the boundaries of the Tuisko-Barabinskiy facies region, where there are two main points of view on the age of the formations underlying sedimentary cover. Some experts believe that these are rocks of Lower-Middle Paleozoic formations (Caledonides), others believe that these are rocks of Upper Paleozoic-Lower Mesozoic formations (Hercynides). The data obtained from the results of drilling over the past 15 years on the territory of Uvat district on the material composition and the age of pre-Jurassic rocks made it possible to clarify the typical section of these sediments in the Tuisko-Barabinskiy region of facies.