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  1. No Access

    Article

    The Formation and Balance of the Atmospheric Precipitations, Surface Water, and Groundwater on the Southern Slopes of the Khibiny Massif (Based on Data on the Isotopic Composition of Oxygen and Hydrogen)

    The δ2H and δ18O values of the atmospheric precipitations in the Khibins vary within the range –147 ≤ δ2H ≤ –37‰, –20 ≤ δ18О ≤ –4‰ and are close to the global line of the precipitations for the northern hemispher...

    A. V. Gudkov, I. V. Tokarev, I. N. Tolstikhin in Water Resources (2021)

  2. No Access

    Article

    Ascending Heat and Mass Flow in Continental Crust: on the Problem of Driving Forces of Tectogenesis

    The geophysical and geochemical indicators of the ascending heat and mass flow in the continental crust—conductive heat flow through the surface of the crust and the isotopic composition of helium in freely ci...

    B. G. Polyak, I. N. Tolstikhin, M. D. Khutorskoi in Izvestiya, Physics of the Solid Earth (2020)

  3. No Access

    Article

    Mobility of Radiogenic Isotopes 4Не and 3Не and Their Retention in a Mineral (by the Example of Amphibole)

    A. V. Gudkov, V. V. Kolobov, S. S. Tarakanov, I. N. Tolstikhin in Doklady Earth Sciences (2019)

  4. No Access

    Article

    Sites and Origin of Noble Gases in Minerals: A Case Study of Amphibole from Alkaline Granitoids of the Kola Peninsula

    The paper presents newly acquired data on the budget and mobility of isotopes of noble gases in samples of amphibole, a mineral commonly characterized by relatively high He concentrations compared to other roc...

    M. A. Gannibal, I. N. Tolstikhin, A. B. Verchovsky… in Geochemistry International (2018)

  5. No Access

    Article

    Residence sites and origin of noble gases in minerals as exemplified by ilmenite from the alkaline granites of the Kola Peninsula

    Thermal analysis of helium release from ilmenite of alkaline granites (Ponoy Massif, Kola Peninsula) and extraction of gases by crushing, melting and vacuum stepwise heating of sample revealed that this mineral c...

    I. N. Tolstikhin, V. I. Skiba, A. Yu. Sevost’yanov… in Geochemistry International (2014)

  6. No Access

    Article

    The tritium-helium-3 method and its application to groundwater dating by the example of the Kirovsk mine region, Murmansk oblast

    The measurement of 3H, 3He, 4He, and 20Ne concentrations in waters at the Tsentralny pum** station (southern Khibiny massif, Kola Peninsula) showed that they are a mixture of young (>90%) and old (<10%) waters....

    A. V. Gudkov, I. L. Kamensky, G. S. Melikhova, V. I. Skiba… in Geochemistry International (2014)

  7. No Access

    Article

    Motion of a helium atom in a quartz crystal with dislocations

    The motion of a helium atom through the quartz crystal structure disturbed by dislocations has been considered. Two cases of their action on the motion of the helium atom have been discussed. (1) Dislocations,...

    E. V. Kalashnikov, I. N. Tolstikhin, B. Z. Pevzner in Physics of the Solid State (2010)

  8. No Access

    Article

    Supra-atomic structure of radiation-induced defects in synthetic quartz from neutron scattering data

    The nanostructure of synthetic quartz samples irradiated with fast reactor neutrons with energies E n > 0.1 MeV has been studied by small-angle neutron scattering. The fluences are varied ...

    V. M. Lebedev, V. T. Lebedev, S. P. Orlov, B. Z. Pevzner… in Physics of the Solid State (2010)

  9. No Access

    Article

    Nature of radiation defects in synthetic quartz according to the small-angle neutron scattering data

    The supraatomic structure of single crystals of synthetic quartz in the initial state with a dislocation density of 570 cm−2 and after irradiation in the VVR-M reactor at the Petersburg Nuclear Physics Institute ...

    V. M. Lebedev, V. T. Lebedev, S. P. Orlov, B. Z. Pevzner… in Crystallography Reports (2007)

  10. No Access

    Article

    Small-angle neutron scattering study of radiation-induced defects in synthetic quartz

    The supraatomic structure of single crystals of synthetic quartz was studied by thermal neutron small-angle scattering in the initial state (dislocation densities 54 and 570 cm−2) and after irradiation in the WWR...

    V. M. Lebedev, V. T. Lebedev, S. P. Orlov, B. Z. Pevzner… in Crystallography Reports (2006)

  11. No Access

    Article

    Small-angle neutron scattering study of radiation defects in synthetic quartz

    The superatomic structure of synthetic quartz single crystals with dislocation densities ρ = 54 and 570 cm−2 was studied in the initial state and after irradiation with fast neutrons with energies E ...

    V. M. Lebedev, V. T. Lebedev, S. P. Orlov, B. Z. Pevzner… in Physics of the Solid State (2006)

  12. No Access

    Article

    Loihi-like plume component in Devonian Kola ultrabasic-alkaline rocks and carbonatites: Noble gas evidence

    I. N. Tolstikhin, I. L. Kamensky, S. V. Ikorsky, V. A. Nivin… in Chinese Science Bulletin (1998)

  13. No Access

    Article

    Time scale for damage tracks recovery in sediments as inferred from fractionation between radiogenic helium isotopes

    I. N. Tolstikhin, I. L. Kamensky, V. A. Nivin, B. E. Lehmann… in Chinese Science Bulletin (1998)

  14. No Access

    Chapter and Conference Paper

    A Change in Composition of Rocks, Mineral Phases and Trapped Gases in The Kola Super-Deep Borehole(SD-3) Section of the Archean Complex with Depth

    A considerable amount of new information about the features of rocks and ore formation at various depths has been obtained due to the investigations carried out by the Geological Institute of the Kola Science ...

    F. P. Mitrofanov, Yu. N. Yakovlev… in Super-Deep Continental Drilling and Deep G… (1990)

  15. No Access

    Article

    Isotopic composition of xenon, krypton, and argon emitted by Cm244 oxide

    Yu. A. Shukolyukov, G. Sh. Ashkinadze, I. N. Tolstikhin… in Soviet Atomic Energy (1967)