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  1. No Access

    Article

    Porphyry Copper and Epithermal Gold–Silver Mineralization of the Baimka Ore Zone, Western Chukotka, Russia

    The results of modern studies of the Baimka Ore Zone (BOZ) in Western Chukotka obtained during prospecting and exploration in 2008–2016 are summarized, and the main features of its structure and development ar...

    A. F. Chitalin, I. A. Baksheev, Yu. N. Nikolaev in Geology of Ore Deposits (2024)

  2. No Access

    Article

    Compositions of Fatty Acids and Several Lipophilic Constituents of Oxytropis caespitosa, O. lanata, O. myriophylla, and O. squammulosa

    Zh. A. Tykheev, Yu. N. Nikolaev, V. V. Taraskin… in Chemistry of Natural Compounds (2022)

  3. No Access

    Article

    Features of Ore Mineralization of Alyarmaut Rise (Western Chukotka)

    The Au mineralization of Alyarmaut Rise was formed from the ore-forming fluids of two types strongly differing in pressure. The first type of fluid is similar to fluids of the orogenic Au–quartz deposits in te...

    V. Yu. Prokofiev, I. A. Kalko, A. V. Volkov, Yu. N. Nikolaev… in Doklady Earth Sciences (2018)

  4. No Access

    Article

    The crystallization temperature of vein quartz estimated from the concentration of the titanium paramagnetic center in quartz: A case study of the Peschanka porphyry copper–molybdenum–gold deposit, Western Chukchi Peninsula, Russia

    The concentration of the Al and Ti paramagnetic impurity centers in pre-ore and ore-stage quartz at the Peschanka porphyry copper–molybdenum–gold deposit in the Western Chukchi Peninsula, Russia were determine...

    A. D. Prudnikova, D. G. Koshchug, S. V. Vyatkin… in Moscow University Geology Bulletin (2017)

  5. No Access

    Article

    Post-collisional magmatism of western Chukotka and Early Cretaceous tectonic rearrangement in northeastern Asia

    The paper presents new data on the isotopic age and chemical composition of volcanic rocks from the Tytyl’veem and Mangazeika basins of western Chukotka superposed on Mesozoides of the Verkhoyansk–Chukotka Tec...

    P. L. Tikhomirov, V. Yu. Prokof’ev, I. A. Kal’ko, A. V. Apletalin… in Geotectonics (2017)

  6. No Access

    Article

    Gold–Silver mineralization in porphyry–epithermal systems of the Baimka trend, western Chukchi Peninsula, Russia

    Mineralogical, fluid inclusion, and geochemical studies of precious metal mineralization within the Baimka trend in the western Chukchi Peninsula have been preformed. Porphyry copper–molybdenum–gold deposits a...

    Yu. N. Nikolaev, I. A. Baksheev, V. Yu. Prokofiev… in Geology of Ore Deposits (2016)

  7. No Access

    Article

    Quartz-sericite and argillic alterations at the Peschanka Cu-Mo-Au deposit, Chukchi Peninsula, Russia

    The porphyry Peschanka copper-molybdenum-gold deposit and the Nakhodka ore field located in the Baimka ore trend on the western Chukchi Peninsula are spatially related to monzonitic rocks of the Early Cretaceo...

    L. I. Marushchenko, I. A. Baksheev, E. V. Nagornaya… in Geology of Ore Deposits (2015)

  8. No Access

    Article

    The first data on the zoned distribution of fluid inclusions in the ore-forming system of the Peschanka gold-copper porphyry deposit (Northeast Russia)

    Yu. N. Nikolaev, V. Yu. Prokof’ev, I. A. Baksheev, A. F. Chitalin… in Doklady Earth Sciences (2014)

  9. No Access

    Article

    Gold-telluride mineralization of the Western Chukchi Peninsula, Russia: Mineralogy, geochemistry, and formation conditions

    Mineralogy, geochemistry, and formation conditions of the Sentyabr’sky prospect—the first economic occurrence of Au-Te mineralization in the Chukchi Peninsula—was studied. Gold occurs in native form and as tel...

    Yu. N. Nikolaev, V. Yu. Prokof’ev, A. V. Apletalin, E. A. Vlasov… in Geology of Ore Deposits (2013)

  10. No Access

    Article

    Solid-phase fluorometric determination of Al(III), Be(II), and Ga(III) using dynamic preconcentration on reagent cellulose matrix

    A fluorimeter is developed, which provides sample pretreatment, preconcentration of analytes from natural waters on the surface of indicator cellulose matrices, and the simultaneous measurement of their fluore...

    V. G. Amelin, N. S. Aleshin, O. I. Abramenkova… in Journal of Analytical Chemistry (2011)

  11. No Access

    Article

    Solid-phase spectrophotometric analysis of natural water with the simultaneous sample preparation and dynamic preconcentration of test components on reagent cellulose matrices

    A photocolorimeter was developed; this instrument made it possible to perform sample preparation, to preconcentrate test water components on indicator cellulose matrices, and to simultaneously measure their li...

    V. G. Amelin, Yu. N. Nikolaev, I. A. Lomonosov… in Journal of Analytical Chemistry (2010)

  12. No Access

    Article

    Optimal measurement of substance concentrations with gas analyzers

    1. This paper gives general relations for maximum likelihood estimation of substance concentrations, which are a...

    A. N. Dmitrienko, Yu. N. Nikolaev in Measurement Techniques (1993)

  13. No Access

    Article

    Ultrasonic stress measurements in the solid rock

    V. A. Gubanov, Yu. N. Nikolaev, A. G. Yasyukevich, A. Yu. Trofimov in Soviet Mining (1979)

  14. No Access

    Article

    Photoelectric characteristics of gallium phosphide pin diodes

    Yu. N. Nikolaev, V. M. Tarasov in Journal of Applied Spectroscopy (1977)

  15. No Access

    Article

    Reproduction of the units of power and energy in various areas of physics (by way of discussion)

    V. V. Abramov, A. F. Kotyuk, Yu. N. Nikolaev, B. M. Stepanov… in Measurement Techniques (1976)

  16. No Access

    Article

    Structure of the spectra for the edge electroluminescence of gallium phosphide

    Yu. N. Nikolaev, V. M. Tarasov in Journal of Applied Spectroscopy (1974)

  17. No Access

    Chapter and Conference Paper

    Principles of Conversion of Electrical Energy into Light

    The physical basis for increasing the efficiency of thermal and electroluminescent light sources is considered. Calculations are given of the optimal parameters of a semiconductor to be used as an incandescent...

    Yu. N. Nikolaev, M. V. Fok in Electroluminescence / Elektrolyuminestsent… (1972)