At the seminar on geology of sedimentary basins, Vsevolod Efremenko, jr research scientist of the Laboratory of Mesozoic and Cenozoic Paleontology and Stratigraphy, IPGG SB RAS, gave a presentation on using comprehensive C, O, and Sr isotope characteristics for solving problems of the Boreal–Tethyan correlation on the example of the Neocomian formations of northern Siberia. The research is supervised by Oksana Dzyuba, Dr Sc (geol.-mineral.), head of the laboratory.
Vsevolod Efremenko giving a presentation
Researchers have studied a total of 102 samples of belemnite rostra from the Boyarka River, Nordvik Peninsula and Anabar River outcrops.
Based on a comprehensive C, O, and Sr isotope characteristic of the Lower Cretaceous of northern Siberia obtained from isotope–geochemical study of carbonate material in the belemnite rostra originating from the analyzed outcrops, researchers managed to solve a number of problems including: correlation of the Upper Berriasian and Ryazanian stage; clarification of the boundary layers of the lowermost Valanginian; identification of the base of the upper Valanginian–lowermost Hauterivian interval.
According to V Efremenko, in combination with the previous results of other researchers, the new data provide a substantiation for improvement of the position of the stage and sub-stage boundaries.
The study was supported by the Russian Science Foundation, grant No. 22-17-00228, at the A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences.
Published by IPGG Press Service
Boreal ammonoid fauna: scientists from IPGG SB RAS study geographical distributions of ammonoids that lived about 240 million years ago in marine basins of the Northern Hemisphere
Uzon volcano caldera: scientists go for the world's youngest oil
Novosibirsk scientists have developed an effective algorithm for large-scale industrial applications
IPGG SB RAS researchers investigate belemnite rostra collected in northern Siberia
IPGG SB RAS scientists have developed a technique to evaluate safety of buildings and structures
Autonomous seismic stations help investigate coal seams in mines
IPGG SB RAS researchers discussed investigation of geological hazards associated with occurrence of depression zones in the areas of Gorny Altai and Caspian Basin
Early Cretaceous oysters: seminal results
IPGG SB RAS traditionally hosts a large conference on geosciences
A delegation from Peking University (PKU) visited the Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences
A multidisciplinary endeavour at the intersection of seismotectonics and geophysics will allow detection of seismically hazardous faults in mountain and high-altitude permafrost areas
A local high-resolution geomagnetic model designed and developed at IPGG SB RAS will beat foreign counterparts
Discussion on geophones
Russian scientists study thermal springs in Central Baikal Rift Zone
An ultra-high precision temperature recorder applicable to bottom water monitoring in Lake Baikal has been created
Implications of megaflood occurred tens of thousands of years ago in Altai region
Trees and shrubs assist scientists in geophysical surveys
Research focus on Yamal
Ordovician communities of photosynthetic organisms in Gorny Altai (Altai Mountains) as a research focus of a young scientist at IPGG SB RAS
IPGG SB RAS’ delegation in China: work in progress
Visitors hospitably welcomed at the Paleontological Museum of IPGG SB RAS
IPGG SB RAS specialists discussed major trends in the development of Russia’s and global fuel and energy complex
Geophysicists started testing seismic vibration monitoring system at SKIF site
A success of IPGG SB RAS ― OGRI RAS joint workshop
Young researchers from IPGG SB RAS have won prestigious Rosneft Academic Tournament
IPGG SB RAS’s continued research into geochemistry of oils and condensates from the northern and Arctic regions of Western Siberia
IPGG SB RAS researchers took part in the Ural Lithological Biennale 2024
Scientists from IPGG SB RAS continue to study sedimentary successions in Arctic regions of Western Siberia
IPGG SB RAS to unveil the phenomenon of hazardous frost heave mounds in Yamal
Siberian and Far Eastern scientists collaborate to create a conceptual model of the formation of the composition of thermal waters of Transbaikalia
Scientific Cooperation Agreement signed between IPGG SB RAS and Northwestern University (China)
A major scholar from China spoke at the seminar at IPGG SB RAS
Scientists discovered dinosaur footprints from the Cretaceous of Transbaikalia
Fossil pollen (radiometric date of 23 - 27 mln years ago) of ancestor forms of Cathaya conifers, a rare subtropical coniferous plant species, found in the Novosibirsk region
The designed at IPGG SB RAS geophysical instrument is successfully used to solve different tasks
A postgraduate student from Zimbabwe studying at Novosibirsk State University presented his PhD dissertation at the geophysical seminar at IPGG SB RAS
Scientists from three institutes studied ceramics of ancient inhabitants of the Novosibirsk region using a multidisciplinary analysis (MDA)
Scientists from IPGG SB RAS maintain fruitful cooperation with colleagues from China
Experiment conducted by Siberian scientists to determine toxicity levels in vapor-gas flows from technogenic substances (in wastes storage sites of the mining industry)
The software solution developed by a Master’s student of Novosibirsk State Technical University implemented at IPGG SB RAS
Young scientists from IPGG SB RAS actively participate in the Smart Piknik festival
A large conference convened by IPGG SB RAS to provide a platform for scientists from all over Russia to present their research works
A solemn rally in honor of Victory Day held in the Veterans Square
Yakutian and Novosibirsk scientists investigate kimberlites from the Obnazhennaya kimberlite pipe
An innovative technique for investigating tailing dumps of mining and processing plants
Tomsk Branch of IPGG SB RAS: An ambitious project on hydrogeochemistry funded by the Russian Science Foundation
Silurian dendroid graptolites of unique 3D preservation found in the Gorny Altai
Geophysical studies of permafrost to help solve problems of geocryology
New ionosonde operating at the laboratory (observatory) of solar-terrestrial physics of IPGG SB RAS
Scientists suggest long-term storage of carbon dioxide deep underground in the Novosibirsk region
