Search Results - "Ponomarchuk, A. V."

Geochemical View on “Harmless” Depleted Uranium by Zhmodik, S. M., Ponomarchuk, V. A.

“…The interaction of alpha radiation from UO 2 micro- and nanoparticles (uraninite) with the substance is visualized using alpha-autoradiography data on A-2…”
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The Age of Gold Mineralization of the Elga Deposit, Mongol–Okhotsk Fold Belt: 40Ar/39Ar Geochronological Constraints by Kadashnikova, A. Yu, Sorokin, A. A., Ponomarchuk, A. V., Travin, A. V., Ponomarchuk, V. A.

“…As a result 40 Ar/ 39 Ar geochronological studies, the age of gold mineralization has been determined for the Elga deposit that is located in the eastern part…”
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Distribution of Mineralization, Ages, and Sources of the Malomyr Gold Deposit, Eastern Part of the Mongol–Okhotsk Fold Belt by Kadashnikova, A. Yu, Sorokin, A. A., Ponomarchuk, V. A., Travin, A. V., Ponomarchuk, A. V., Eirish, L. V.

“…A reliable estimate is obtained for the gold mineralization age for the Malomyr deposit (eastern part of the Mongol–Okhotsk Fold Belt), one of the most…”
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THE FIRST 40Ar/39Ar GEOCHRONOLOGICAL DATA FOR ORE METASOMATITES OF THE UNGLICHIKAN GOLD DEPOSIT, EASTERN PART OF THE MONGOL-OKHOTSK FOLD BELT by Kadashnikova, A. Yu, Sorokin, A. A., Ponomarchuk, A. V., Travin, A. V., Ponomarchuk, V. A.

“…In our isotope-geochronological study, the age of ore metasomatites of the Unglichikan gold deposit is determined at 140–136 Ma. Magmatism of this age is…”
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40Ar/39Ar Age of Gold Mineralization of the Albyn Deposit (Eastern Part of the Mongol–Okhotsk Fold Belt) by Kadashnikova, A. A., Sorokin, A. A., Ponomarchuk, A. V., Travin, A. V., Ponomarchuk, V. A., Dementienko, A. I., Eirish, L. V.

“…The age of hydrothermal metasomatic rocks of the Albyn gold ore deposit is shown to be 135–131 Ma. The Albyn deposit is one of the best-known ore gold deposits…”
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Age and evolution of late Mesozoic metamorphic core complexes in southern Siberia and northern Mongolia by Donskaya, Tatiana V, Windley, B. F, Mazukabzov, Anatoliy M, Kröner, Alfred, Sklyarov, E. V, Gladkochub, Dmitry P, Ponomarchuk, V. A, Badarch, G, Reichow, M. K, Hegner, E

“…Numerous Cretaceous metamorphic core complexes (MCCs) extend from Transbaikalia in Russia to northern Mongolia within the Central Asian Orogenic Belt. We…”
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40Ar/39Ar Age of Gold Ore Metasomatites of the Albyn Deposit, Mongol–Okhotsk Fold Belt by Kadashnikova, A. Yu, Sorokin, A. A., Ponomarchuk, A. V., Travin, A. V., Ponomarchuk, V. A., Dementienko, A. I., Eirish, L. V.

“…The paper reports the results of 40 Ar/ 39 Ar geochronological studies of the muscovite–quartz–albite metasomatites of the ore bodies and host rocks of the…”
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Evidence of Microbial-Induced Mineralization in Rocks of the Tomtor Carbonatite Complex (Arctic Siberia) by Ponomarchuk, V. A., Dobretsov, N. L., Lazareva, E. V., Zhmodik, S. M., Karmanov, N. S., Tolstov, A. V., Pyryaev, A. N.

“…Carbonates of the Tomtor complex of ultramafic alkaline rocks and carbonatites (the northern part of the Republic of Sakha Yakutia) are distinguished by a wide…”
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Ultrapotassic Rock from the Tomtor Complex of Ultrabasic Alkaline Rocks and Carbonatites (Arctic Siberia) by Dobretsov, N. L., Lazareva, E. V., Zhmodik, S. M., Ponomarchuk, V. A., Travin, A. V., Myagkaya, I. N., Tolstov, A. V., Karmanov, N. S.

“…Among the rich REE–Nb ores of the upper ore horizon of the Tomtor deposit, under the Jurassic deposits (borehole 324, interval 47–62 m), ultrapotassiс rocks…”
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Age and Duration of the Formation of the Olimpiada Gold Deposit (Yenisei Ridge, Russia) by Gibsher, N. A., Sazonov, A. M., Travin, A. V., Tomilenko, A. A., Ponomarchuk, A. V., Sil’yanov, S. A., Nekrasova, N. A., Shaparenko, E. O., Ryabukha, M. A., Khomenko, M. O.

“…40 Ar/ 39 Ar dates on the quartz–micaceous–sulfide, quartz–gold–arsenopyrite–pyrrhotite, and quartz–gold–stibium associations at the superlarge (>1000 t Au)…”
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Geology, Geochronology, and Geodynamics of the Khan Bogd alkali granite pluton in southern Mongolia by Kovalenko, V. I., Yarmoluyk, V. V., Sal’nikova, E. B., Kozlovsky, A. M., Kotov, A. B., Kovach, V. P., Savatenkov, V. M., Vladykin, N. V., Ponomarchuk, V. A.

“…The Khan Bogd alkali granite pluton, one of the world's largest, is situated in the southern Gobi Desert, being localized in the core of the Late Paleozoic…”
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SR XRF study of natural micro- and nanostructured carbon from igneous rocks by Ponomarchuk, V. A., Kolmogorov, Y. P., Ryabov, V. V., Titov, A. T., Moroz, T. N., Semenova, D. V., Pyryaev, A. N., Ponomarchuk, A. V.

“…Carbon micro- and nanoscale structures formed during the consolidation of magmatic rocks is investigated. They are very similar to nanoscale carbon structures…”
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Raman spectra of a graphite–nontronite association in marbles from Oltrek Island (Lake Baikal, Russia) by Moroz, T.N., Edwards, H.G.M., Ponomarchuk, V.A., Pyryaev, A.N., Palchik, N.A., Goryainov, S.V.

“…The graphite in marbles from Oltrek, an uninhabited island on Lake Baikal, has been investigated by micro‐Raman spectroscopy using visible and near‐ultraviolet…”
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Evolution of Rare-Metal Li–F Granite Melts in Sources of Ore-Magmatic Systems of Tigrinoe and Zabytoe Sn–W deposits (Central Sikhote-Alin, Primorye) by Gavryushkina, O. A., Sokolova, E. N., Smirnov, S. Z., Kruk, N. N., Ponomarchuk, A. V., Tomas, V. G.

“…The present paper considers petrographic and geochemical features of rocks of the Tigrinoe and Zabytoe stocks, provides their mineral composition, the results…”
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The Age of Gold Mineralization of the Ketkap–Yuna Magmatic Province, the Formation Affiliation of Gold-Bearing Complexes, and Stages of the Late Mesozoic Magmatism in Different Parts of the Aldan Shield by Polin, V. F., Zvereva, N. M., Travin, A. V., Ponomarchuk, A. V.

“…The first data on the 40 Ar/ 39 Ar isotope age of hydrothermal stringer-disseminated gold mineralization of the Late Mesozoic Ketkap–Yuna magmatic province…”
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Gabbroids and Monzonitoids of the Tigriny Ore Cluster (Sikhote-Alin): Composition, Age, Geodynamic Setting, and Relationship with Mineralization by Orekhov, A. A., Kruk, N. N., Gavryushkina, O. A., Kruk, E. A., Fedoseev, D. G., Ponomarchuk, A. V.

“…This article presents the results of the study of the mineralogical and petrographic characteristics, composition, and age of gabbroids and monzonitoids of the…”
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Signatures of the Involvement of Microorganisms in the Formation of Nodular Monazite (Kularite), Republic of Sakha (Yakutia), Russia by Zhmodik, S. M., Rozanov, A. Yu, Lazareva, E. V., Ivanov, P. O., Belyanin, D. K., Karmanov, N. S., Ponomarchuk, V. A., Saryg-ool, B. Yu, Zhegallo, E. A., Samylina, O. S., Moroz, T. N.

“…Data indicating the important role of microorganisms in the formation of nodular monazite (NM) (kularite) of the Kular Range, Republic of Sakha (Yakutia), are…”
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Crystal-Chemical Features of Apatite in Carbonatites of the Tomtor Deposit (The Republic of Sakha (Yakutia), Russia): X-Ray Diffraction and Vibrational Spectroscopy Data by Moroz, T. N., Palchik, N. A., Zhmodik, S. M., Ponomarchuk, V. A., Goryainov, S. V.

“…An analysis of a number of samples from the Tomtor deposit of Nb and rare-earth elements (Republic of Saha (Yakutia)) by X-ray diffractometry, IR spectroscopy,…”
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ISOTOPE COMPOSITION OF CARBON AND OXYGEN IN CALCITES OF ALKALINE ULTRAMAPHIC DYKES WITHIN THE URIK-IYA GRABEN by Danilova, Yu. V., Savelyeva, V. B., Bazarova, E. P., Danilov, B. S., Ponomarchuk, V. A.

“…The isotope composition of carbon and oxygen was studied in calcite of dykes and veins of ultramafic lamprophyres, kimberlite, alkaline mica picrites from the…”
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SEQUENCE OF AILLIKITE AND CALCITE CARBONATITE FORMATION WITHIN THE BELAYA ZIMA MASSIF, EAST SIBERIA, RUSSIA by Zhmodik, S. M., Ashchepkov, I. V., Belyanin, D. K., Ayriyants, E. V., Kiseleva, O. N., Ponomarchuk, V. A.

“…The mineralogical and geochemical features, as well as the sequence of formation of aillikite and calcite carbonatite (CC) with pyrochlore are described for…”
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