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  1. No Access

    Article

    Variations of the 238U/235U Isotope Ratio in Metasedimentary Rocks and Evidence of Changes in Sedimentation Conditions during the Ediacarian Period of the Neoproterozoic

    The isotopic composition of uranium is a new geochemical indicator that facilitates reconstruction of the redox conditions of geological processes. In this paper the results of study of the 238U/235U isotope rati...

    A. V. Chugaev, Academician I. V. Chernyshev, A. E. Budyak… in Doklady Earth Sciences (2019)

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    Article

    The 238U/235U Ratio as an Indicator of Redox Conditions in the Ediacaran Paleobasin (Sequence of the Chaya River, Baikal–Patom Highland, Southern Part of Central Siberia)

    Abstract—This article is devoted to a study of variations in the U isotopic composition (238U/235U) in the section of clastic–carbonate Ediacaran sediments exposed along the Chaya River in the southern part of Ce...

    A. V. Chugaev, Academician I. V. Chernyshev, B. G. Pokrovsky… in Doklady Earth Sciences (2019)

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    Article

    Relationship between Magmatic, Metamorphic, and Hydrothermal Processes within the Baikal–Muya Terrane (Eastern Siberia): Constraints from High-Precision Geochronological Study of the Kedrovskii Granitoid Massif

    High-precision dating of granitoids is of key significance for age identification of the main stages of crust formation in various blocks of the continental crust. Here we demonstrate geochronological results ...

    A. V. Chugaev, Academician I. V. Chernyshev, E. Y. Rytsk… in Doklady Earth Sciences (2019)

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    Article

    Haüyne Alkaline Basaltoids Found in the Lesser Caucasus (Kapan District, Armenia) and Their Middle Pleistocene Age

    The results of isotope–geochronological study of Quaternary mafic volcanism in the Kapan neovolcanic center (Southern Armenia) are discussed. The rocks studied are represented by alkaline basaltoids with haüyn...

    V. A. Lebedev, Academician I. V. Chernyshev in Doklady Earth Sciences (2020)

  5. No Access

    Article

    Neogene–Quaternary Magmatism in Eastern Balkaria (North Caucasus, Russia): Evidence from the Isotope–Geochronological Data

    An isotope-geochronological study for a number of young volcanic localities in the eastern part of Balkaria (North Caucasus, Russia), referred to the Neogene–Quaternary stage in the evolution of the Greater Ca...

    E. N. Kaigorodova, V. A. Lebedev, Academician I. V. Chernyshev… in Doklady Earth Sciences (2021)