Published in Lithology and Mineral Resources
The study of bottom sediments and suspended matter (SM) in the Hornsunn Fjord of western Spitsbergen reveals that SM is largely deposited in its central part. The model of recent sedimentation in the fjord is proposed based on the analysis of grain-size distribution, petrographic-mineralogical composition, physical properties of recent sediments, a...
Published in Lithology and Mineral Resources
The paper considers geochemical behavior of Rb-Sr and K-Ar systems in Upper Vendian clayey rocks of the Russian Platform. The use of additional material on size fractions of sediments recovered from boreholes drilled in the Gavrilov Yam area made it possible to confirm the previous inference on two stages of the epigenetic matter transformation (ap...
Published in Lithology and Mineral Resources
The paper presents results of the comparative analysis of organic matter (OM), mineralogical characteristics, and radioactivity in Oligocene clayey rocks from the Greater Caucasus and Talysh, which bound the South Caspian Depression on the southeast and northwest, respectively. It is established that Oligocene clays of the Greater Caucasus and Taly...
Published in Lithology and Mineral Resources
Insignificant role of anthropogenic carbon dioxide in the total balance of this gas in the atmosphere is shown. Relationship of the atmospheric CO2 content with climate in geological history of the Earth and history of mankind is ambiguous. It is assumed that the influence of greenhouse effect on global climate was less significant than was thought...
Response of Antarctic ice sheets to projected greenhouse warming of up to 5.8!C by the end of the century is not known. Models on which predictions are based need to be constrained by geological data of the ancient ice sheets during times when Earth is known to have been warmer than today. The marine-based West Antarctic Ice Sheet (WAIS) and its fr...
During the austral summer of 2007 the ANtarctic DRILLing program (ANDRILL) will drill from a sea-ice platform in southern McMurdo Sound to obtain new information about the Neogene Antarctic cryosphere and evolution of Antarctic rift basins.
Published in Lithology and Mineral Resources
Based on the study of geophysical log diagrams and outcrops of the Lower Pliocene productive series at the western flank of the South Caspian Basin, paleofacies settings of their accumulation are interpreted. Twenty high-frequency cycles of sealevel fluctuation in the Paleocaspian Sea are identified within the major productive Kirmaki, Suprakirmaki...
Published in Lithology and Mineral Resources
The behavior of trace and rare earth elements (REE) in weathering crusts (WC) developed after metasedimentary rocks of the Kursk Group of the Kursk Magnetic Anomaly (KMA) is considered. Specific features of their distribution in the weathering profile are noted and intervals of their concentration are outlined. It is suggested that the database of ...
Published in Lithology and Mineral Resources
Lower Ordovician sequences of the Ebeta antiform, a southern extension of the Uraltau zone, were deposited at the conjugation of paleocontinental and paleoceanic sectors of the southern Urals. Four types of sections were formed on opposite sides of cordillera that existed at the margin of the East European paleocontinent on the Preordovician volcan...
Dans un cadre stratigraphique revu le remplissage miocène du bassin molassique rhodano-provençal (BMRP) a été découper en 10 séquences de dépôt (IIIrd). Trois grandes phases d'érosion fluviatile ont été caractérisées : entre l'Aquitanien et le Burdigalien inférieur et entre le Burdigalien terminal et le Langhien puis à la base du Tortonien. Les tra...
