Search Results - "Dmitry A. Varlamov"

Crystal Chemistry, Isomorphism, and Thermal Conversions of Extra-Framework Components in Sodalite-Group Minerals by Nikita V. Chukanov, Roman Yu. Shendrik, Marina F. Vigasina, Igor V. Pekov, Anatoly N. Sapozhnikov, Vasily D. Shcherbakov, Dmitry A. Varlamov

“…Isomorphic substitutions of extra-framework components in sodalite-group aluminosilicate minerals and their thermal conversions have been investigated using…”
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Nature and Isomorphism of Extra-Framework Components in Cancrinite- and Sodalite-Related Minerals: New Data by Nikita V. Chukanov, Marina F. Vigasina, Roman Yu. Shendrik, Dmitry A. Varlamov, Igor V. Pekov, Natalia V. Zubkova

“…New data on the isomorphism of extra-framework components (including chromophores) in two- and multilayer minerals belonging to the cancrinite and sodalite…”
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Vladimirivanovite Revised: General Crystal Chemistry and Isomorphous Substitutions of Extra-Framework Species by Nadezhda B. Bolotina, Nikita V. Chukanov, Anatoly N. Sapozhnikov, Natalia V. Zubkova, Igor V. Pekov, Dmitry A. Varlamov, Marina F. Vigasina, Maria O. Bulakh, Vasiliy O. Yapaskurt, Dmitry A. Ksenofontov

“…New data on the crystal structure, chemical composition, and nature of extra-framework components of the orthorhombic sodalite-group mineral vladimirivanovite…”
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Coupled Substitutions in Natural MnO(OH) Polymorphs: Infrared Spectroscopic Investigation by Nikita V. Chukanov, Dmitry A. Varlamov, Igor V. Pekov, Natalia V. Zubkova, Anatoly V. Kasatkin, Sergey N. Britvin

“…Solid solutions involving natural Mn3+O(OH) polymorphs, groutite, manganite, and feitknechtite are characterized and discussed based on original and literature…”
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Isomorphism and Mutual Transformations of S-Bearing Components in Feldspathoids with Microporous Structures by Nikita V. Chukanov, Nadezhda V. Shchipalkina, Roman Yu. Shendrik, Marina F. Vigasina, Vladimir L. Tauson, Sergey V. Lipko, Dmitry A. Varlamov, Vasiliy D. Shcherbakov, Anatoly N. Sapozhnikov, Anatoly V. Kasatkin, Natalia V. Zubkova, Igor V. Pekov

“…The isomorphism of S-bearing feldspathoids belonging to the cancrinite, sodalite, tugtupite, vladimirivanovite, bystrite, marinellite and scapolite structure…”
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On the Isomorphism of Sodium at the M(2) Site in Eudialyte-Group Minerals: The Crystal Structure of Mn-Deficient Manganoeudialyte and the Problem of the Existence of the M(2)Na-Dominant Analogue of Eudialyte by Sergey M. Aksenov, Nikita V. Chukanov, Igor V. Pekov, Yulia V. Nelyubina, Dmitry A. Varlamov, Lia N. Kogarko

“…Sodium plays an important role in the crystal structures of eudialyte-group minerals given that it can occupy different crystallographic sites. Predominantly,…”
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The Features of Native Gold in Ore-Bearing Breccias with Realgar-Orpiment Cement of the Vorontsovskoe Deposit (Northern Urals, Russia) by Sergey Y. Stepanov, Roman S. Palamarchuk, Dmitry A. Varlamov, Darya V. Kiseleva, Ludmila N. Sharpyonok, Radek Škoda, Anatoly V. Kasatkin

“…This paper describes native gold in ore-bearing breccias with realgar-orpiment cement from the Vorontsovskoe gold deposit (Northern Urals, Russia). Particular…”
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Platinum-Group Minerals of Pt-Placer Deposits Associated with the Svetloborsky Ural-Alaskan Type Massif, Middle Urals, Russia by Sergey Yu. Stepanov, Roman S. Palamarchuk, Aleksandr V. Kozlov, Dmitry A. Khanin, Dmitry A. Varlamov, Daria V. Kiseleva

“…The alteration of platinum group minerals (PGM) of eluval, proximal, and distal placers associated with the Ural-Alaskan type clinopyroxenite-dunite massifs…”
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Hydrated Peridotite – Basaltic Melt Interaction Part I: Planetary Felsic Crust Formation at Shallow Depth by Borisova, Anastassia Y., Zagrtdenov, Nail R., Toplis, Michael J., Bohrson, Wendy A., Nédélec, Anne, Safonov, Oleg G., Pokrovski, Gleb S., Ceuleneer, Georges, Bindeman, Ilya N., Melnik, Oleg E., Jochum, Klaus Peter, Stoll, Brigitte, Weis, Ulrike, Bychkov, Andrew Y., Gurenko, Andrey A., Shcheka, Svyatoslav, Terehin, Artem, Polukeev, Vladimir M., Varlamov, Dmitry A., Chariteiro, Kouassi, Gouy, Sophie, de Parseval, Philippe

“…Current theories suggest that the first continental crust on Earth, and possibly on other terrestrial planets, may have been produced early in their history by…”
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Ion-exchange properties of the natural zeolite amicite by Chukanov, Nikita V., Kazheva, Olga N., Chervonnaya, Nadezhda A., Varlamov, Dmitry A., Ermolaeva, Vera N., Pekov, Igor V., Shilov, Gennadiy V.

“…Crystals of the natural zeolite amicite, ideally K4Na4(Al8Si8O32)·10H2O, were ion-exchanged in the reactions with 0.1 N aqueous solutions of AgNO3, RbNO3,…”
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Crystal Chemistry and Properties of Elpidite and Its Ag-Exchanged Forms by Natalia V. Zubkova, Rositsa P. Nikolova, Nikita V. Chukanov, Vladislav V. Kostov-Kytin, Igor V. Pekov, Dmitry A. Varlamov, Tatiana S. Larikova, Olga N. Kazheva, Nadezhda A. Chervonnaya, Gennadiy V. Shilov, Dmitry Yu. Pushcharovsky

“…Elpidite from the Lovozero alkaline complex, Kola Peninsula, Russia, and Ag-exchanged forms of elpidite from two different localities (Lovozero and Khan Bogdo,…”
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Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia - Part 1: Neso-, cyclo-, ino- and phyllosilicates by Shchipalkina, Nadezhda V, Pekov, Igor V, Koshlyakova, Natalia N, Britvin, Sergey N, Zubkova, Natalia V, Varlamov, Dmitry A, Sidorov, Eugeny G

“…This is the initial paper in a pair of articles devoted to silicate minerals from fumaroles of the Tolbachik volcano (Kamchatka, Russia). These papers contain…”
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Steudelite, (Na3☐)[(K,Na)17Ca7]Ca4(Al24Si24O96)(SO3)6F6·4H2O, a new cancrinite-group mineral with afghanite-type framework topology by Chukanov, Nikita V., Zubkova, Natalia V., Varlamov, Dmitry A., Pekov, Igor V., Belakovskiy, Dmitry I., Britvin, Sergey N., Van, Konstantin V., Ermolaeva, Vera N., Vozchikova, Svetlana A., Pushcharovsky, Dmitry Yu

“…The new cancrinite-group mineral steudelite, ideally (Na 3 ☐)[(K,Na) 17 Ca 7 ]Ca 4 (Al 24 Si 24 O 96 )(SO 3 ) 6 F 6 ·4H 2 O, was discovered in syenite ejectum…”
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New assay to diagnose and differentiate between Mycobacterium tuberculosis complex and nontuberculous mycobacteria by Ustinova, Vera V., Smirnova, Tatiana G., Sochivko, Dmitry G., Varlamov, Dmitry A., Larionova, Elena E., Andreevskaya, Sofya N., Andrievskaya, Irina Yu, Kiseleva, Ekaterina A., Chernousova, Larisa N., Ergeshov, Atadzhan

“…The purpose of the present study was to create a real-time PCR test system allowing simultaneous detection of nontuberculous mycobacteria (NTM) and…”
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Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia - Part 2: Tectosilicates by Shchipalkina, Nadezhda V, Pekov, Igor V, Koshlyakova, Natalia N, Britvin, Sergey N, Zubkova, Natalia V, Varlamov, Dmitry A, Sidorov, Eugeny G

“…This second of two companion articles devoted to silicate mineralization in fumaroles of the Tolbachik volcano (Kamchatka, Russia) reports data on chemistry,…”
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P–T Conditions, Mechanism and Timing of the Localized Melting of Metapelites from the Petronella Shear Zone and Relationships with Granite Intrusions in the Southern Marginal Zone of the Limpopo Belt, South Africa by Safonov, Oleg G, Yapaskurt, Vasily O, Elburg, Marlina, van Reenen, Dirk D, Tatarinova, Daria S, Varlamov, Dmitry A, Golunova, Maria A, Andre Smit, C

“…Abstract Evidence is presented for the localized melting of cordierite–orthopyroxene–biotite metapelites within the Petronella shear zone in the Southern…”
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New data on the crystal chemistry of the natural two‐layer aluminosilicates latiumite and tuscanite by Zubkova, Natalia V., Chukanov, Nikita V., Varlamov, Dmitry A., Vigasina, Marina F., Pekov, Igor V., Ksenofontov, Dmitry A., Pushcharovsky, Dmitry Yu

“…The crystal chemistry of the natural microporous two‐layer aluminosilicates (2D zeolites) latiumite and tuscanite is re‐investigated based on new data on the…”
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Zinc-rich and copper-bearing amphiboles from sulfide-free ore occurrences of the Pelagonian Massif, Republic of North Macedonia by Chukanov, Nikita V., Zubkova, Natalia V., Jančev, Simeon, Pekov, Igor V., Ermolaeva, Vera N., Varlamov, Dmitry A., Belakovskiy, Dmitriy I., Britvin, Sergey N.

“…This paper describes specific features of isomorphism of unusual amphiboles containing up to 23 wt% ZnO and up to 1.3 wt% CuO from sulfide-free metasomatic…”
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Chiyokoite, Ca3Si(CO3)[B(OH)4]O(OH)5·12H2O, a new ettringite-group mineral from the Fuka Mine, Okayama Prefecture, Japan by Lykova, Inna, Chukanov, Nikita V, Pekov, Igor V, Yapaskurt, Vasiliy O, Pautov, Leonid A, Karpenko, Vladimir Yu, Belakovskiy, Dmitry I, Varlamov, Dmitry A, Britvin, Sergey N, Scheidl, Katharina S

“…The new ettringite-group mineral chiyokoite, ideally Ca3Si(CO3)[B(OH)4]O(OH)5·12H2O, was found in a hydrothermally altered calc-silicate skarn at the Fuka…”
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EXTREMELY AL-DEPLETED CHLORITES FROM DOLOMITE CARBONATITES OF THE KOVDOR ULTRAMAFIC-ALKALINE COMPLEX, KOLA PENINSULA, RUSSIA by Chukanov, Nikita V., Krzhizhanovskaya, Maria G., Pekov, Igor V., Varlamov, Dmitry A., Van, Konstantin V., Ermolaeva, Vera N., Vozchikova, Svetlana A.

“…The problem to be solved is whether Al is a necessary component of Fe-Mg chlorites. Very unusual Al-depleted and Fe-enriched trioctahedral chlorites with the…”
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