Geological Institute

Competition and soil conditions limit the growth of High Arctic non‐native plants

Non-native vascular plant species in the High Arctic are currently restricted mainly to settlements and other anthropogenically disturbed areas. The reasons for this remain unclear, but climate or dispersal do not appear to be the main limiting factors. Instead, biotic interactio...

An association of Liquidambar (Altingiaceae) vegetative and reproductive structures from the Miocene of South China

Liquidambar is a classic example of the eastern Asian–eastern North American biogeographic disjunction, and its fossil record is critical for understanding the evolutionary history and taxonomy of Altingiaceae. In particular, associated vegetative and reproductive fossils provide...

Adaptive Inversion Optimization of the Static Factor of Safety for Newmark-Based Earthquake-Induced Landslide Susceptibility Assessment

Rapid regional evaluation of earthquake-induced landslide susceptibility via the traditional Newmark model is often constrained by geotechnical parameter spatial variability and subjective empirical adjustments in static factor of safety (Fs) calculations. To resolve this bottlen...

Micropalaeontological biostratigraphy and palaeoecology of the Middle Eocene of the Lower Volga region, southwest Russia

A biostratigraphical study of the Eocene interval, based on dinoflagellate cysts and calcareous nannofossils, was performed in two boreholes from the Lower Volga region (Yergeni Upland), southwest Russia. Dinoflagellate cyst zonation of the interval allowed six zonal subdivisions...

On the Age and Genesis of the Verkhnyaya Gora Strata of the Kurtak Region, Middle Yenisei

Abstract A study of the geology of the Verkhnyaya Gora strata in the Berezhekovo-5 section of the Kurtak geoarcheological region, based on numerous detailed outcrops, shows its deluvial-solifluctional genesis. The results of the analysis of the therio- and malacofaunas from the V...

Organic carbon pathways across the fluvial-marine transition zone of the Mackenzie River Delta – Beaufort Sea region and implications on ocean color remote sensing

Abstract. Arctic warming and hydrological intensification are accelerating permafrost thaw and increasing the export of terrestrial organic carbon (OC) and sediments from land via rivers and shallow coastal waters into marine waters, yet the fate of these materials in deltaic and...

Integrated Approach to Paleontological and Geochemical Data of the Upper Campanian–Maastrichtian Harami Formation (Elazığ, Eastern Türkiye)

The aim of this study is to determine the age and depositional environment of the Harami Formation through an integrated interpretation of XRF, ICP-MS, SEM-EDS, stable isotope, and radioactive isotope analysis results and findings of larger benthic foraminifera. Findings from the...

Age of Zircons from Sedimentary Rocks of the Elgon Formation of the Ulban Terrane on the Coast of the Ulban Bay

U–Pb dating of detrital zircons from sandstones of the Elgon Formation showed that the formation is no older than Oxfordian in age (early Late Jurassic) and not Middle Jurassic as previously assumed based on the rare flora and fauna finds and the position of the formation within...

Chemical Features of Rare-Earths Accessory Minerals in the Lower–Middle Cambrian Terrigenous Rocks from the Argun Series of the Northwestern Part of the Argun Superterrane as Indicators of the Sources

Abstract The paper presents the results of the chemical study of rare-earth accessory minerals of the Lower–Middle Cambrian terrigenous rocks of the Bystraya Formation and the Ernichny Unit of the Argun Series of the Argun Superterrane. The chemical analysis of monazite, xenotime...

Density Structure of the Lithosphere in upper Priamurye

Abstract A 3D density model for the lithosphere of Upper Priamurye, which extends to a depth of 130 km, was constructed based on the anomalous gravity field. The lithospheric mantle displays a banded structure defined by a series of alternating relatively low and high density zon...