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Bulakh M. O. Pekov I. V. Chukanov N. V. Yapaskurt V. O. Koshlyakova N. N. Britvin S. N. Sidorov E. G. 《Geology of Ore Deposits》2022,64(7):432-441
Geology of Ore Deposits - Fluoborite extremely close to the fluorine endmember of the fluoborite Mg3[BO3]F3–hydroxylborite Mg3[BO3](ОН)3 series has been found in exhalations of... 相似文献
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Sandalov F. D. Pekov I. V. Koshlyakova N. N. Yapaskurt V. O. Agakhanov A. A. Sidorov E. G. Britvin S. N. 《Geology of Ore Deposits》2021,63(7):682-695
Geology of Ore Deposits - Abstract—The paper contains data on rutile, tripuhyite, and unusual Ti-rich cassiterite found in sublimates of active fumaroles at the Tolbachik volcano, Kamchatka,... 相似文献
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Koshlyakova N. N. Pekov I. V. Vigasina M. F. Agakhanov A. A. Nazarova M. A. 《Doklady Earth Sciences》2022,507(1):900-903
Doklady Earth Sciences - A novel solid solution between isostructural Mg arsenate and phosphate of the wagnerite group and a new As5+-rich variety of wagnerite were discovered in sublimates of the... 相似文献
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D. B. Bondar’ A. V. Chugaev Yu. S. Polekhovskii N. N. Koshlyakova 《Moscow University Geology Bulletin》2018,73(4):380-389
The ore mineralogy of the largest quartz vein, Osinovaya, at the Kedrovskoe gold deposit has been studied. Three stages of mineral formation, namely, marcasite–pyrrhotite–pyrite, gold–polysulfide, and hypergenic stages are identified. Native gold is attributed to the gold–polysulfide stage and is represented by two generations. The earlier high fineness generation (600–870, 780–820 prevails) cements the fragments of pyrite grains or forms inclusions in pyrite, and the later low fineness generation (520–580, 540–580 prevails) is associated with sphalerite–chalcopyrite–galena veinlets in pyrite. The disappearance of arsenious pyrite, the increase in iron content of sphalerite, and the change in pyrite to pyrrhotite with depth is recorded. 相似文献
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Zubkova N. V. Pekov I. V. Chukanov N. V. Grishin V. G. Koshlyakova N. N. Yapaskurt V. O. Ksenofontov D. A. Turchkova A. G. Pushcharovsky D. Yu. 《Geology of Ore Deposits》2022,64(8):657-669
Geology of Ore Deposits - Unusual chemical and structural varieties of two lovozerite-group minerals from the Lovozero alkaline complex (Kola Peninsula) were studied by means of electron microprobe... 相似文献
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Koshlyakova N. N. Pekov I. V. Zubkova N. V. Agakhanov A. A. Turchkova A. G. Kartashov P. M. Sidorov E. G. Pushcharovsky D. Yu. 《Geology of Ore Deposits》2021,63(8):857-868
Geology of Ore Deposits - An extended isostructural solid solution (isomorphic series) between arsenate and vanadate of the garnet supergroup — berzeliite (NaCa2)Mg2(AsO4)3 and... 相似文献
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L. P. Ogorodova M. F. Vigasina O. V. Kononov N. N. Koshlyakova D. A. Ksenofontov D. A. Khanin V. D. Shcherbakov L. V. Mel’chakova 《Geochemistry International》2018,56(8):865-869
The paper reports pioneering data on the calorimetrically determined enthalpy of formation from elements of cuspidine, Ca fluordiorthosilicate Ca4Si2O7F2, from the Tyrny-Auz Mo–W deposit in Kabardino- Balkaria, Russia. The data were obtained by high-temperature melt solution calorimetry. The determined value is ΔfHel° (298.15 K) =–5190 ± 13 kJ/mol. The paper reports estimated S°(298.15 K) and ΔfGel° (298.15 K) of cuspidine. 相似文献
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Bulakh M. O. Pekov I. V. Koshlyakova N. N. Sidorov E. G. 《Geology of Ore Deposits》2022,64(8):607-621
Geology of Ore Deposits - This paper in focused on the data for ludwigite and yuanfuliite of the new fumarolic genetic type. These ferric–magnesian borates (oxoborates) have been found in... 相似文献
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