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Golovin A. V. Solovev K. A. Sharygin I. S. Letnikov F. A. 《Doklady Earth Sciences》2022,507(2):1044-1049
Doklady Earth Sciences - This paper reports the first discovery of zoned aragonite, a high-pressure CaCO3 polymorph, in a mantle xenolith from kimberlite. Aragonite is the most common epigenetic... 相似文献
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E. F. Letnikova F. A. Letnikov S. I. Shkol’nik T. Yu. Cherkashina L. Z. Reznitskii I. A. Vishnevskaya 《Doklady Earth Sciences》2016,466(1):42-46
Isotope–geochemical studies of Mn, P, and Ba ores were performed in order to establish the influence of submarine hydrotherms on the formation of Early Cambrian sedimentary rocks of the southern environs of the Siberian Platform. Based on study of the geochemical and isotope (εNd) characteristics of the shallow-water Mn and Ba ores and phosphorites of southern environs of the Siberian Platform with similar ages, two types of sedimentary basins of the different geodynamic origins were distinguished: intraplate oceanic and those of the active continental margin, for which the sources of ore materials differ by the proportions of the mantle and contaminated crustal matter. 相似文献
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F. A. Letnikov 《Doklady Earth Sciences》2016,468(2):584-586
At the end of the 20th century, the methods of equilibrium thermodynamics in studying natural fluid systems were replaced by synergetics, a more general paradigm. The main difference of the synergetic approach is its interdisciplinary character, and one of its achievements is understanding the role of governing parameters in particular fluid systems and introducing the concept of endogeneous fluid systems as polystationary systems. 相似文献
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Letnikova E. F. Izokh A. E. Kosticin Y. A. Letnikov F. A. Ershova V. B. Federyagina E. N. Ivanov A. V. Nojkin A. D. Shkolnik S. I. Brodnikova E. A. 《Doklady Earth Sciences》2021,496(1):53-59
Doklady Earth Sciences - On the basis of petrographic and mineralogical studies, we have established the presence of clastic rocks with a strong predominance of K-feldspar among the rock-forming... 相似文献
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The energy parameters of ore-forming deep fluid systems (enthalpy and Gibbs free energy) for compounds of S, Cl, and B have been estimated by thermodynamic methods at a lithosphere depth of 1000–20 km. At a depth of 1000 km, ore-forming fluids are dominated by BF3. With a decrease in a depth to 100–20 km, the range of fluid ore-forming systems becomes wider due to the B, F, Cl, and S compounds providing a real basis for development of the voluminous ore-forming fluid systems at the top of the lithosphere. 相似文献
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I. A. Andreeva V. S. Antipin O. A. Bogatikov M. V. Borisov N. S. Bortnikov N. V. Vladykin V. L. Vinograd A. V. Girnis V. A. Glebovitskii L. V. Danyushevsky N. L. Dobretsov V. S. Kamenetsky L. T. Kogarenko A. M. Kozlovskyi S. P. Korikovsky A. B. Kotov M. G. Kopylova M. I. Kuz’min N. N. Laverov F. A. Letnikov B. A. Litvinovsky A. A. Marakushev M. A. Nazarov V. B. Naumov A. V. Nikiforov I. S. Puchtel Yu. M. Pushcharovsky S. V. Ruzhentsev I. D. Ryabchikov V. S. Samoilov A. V. Samsonov A. G. Simakin A. V. Sobolev A. I. Khanchuk N. P. Yushkin V. V. Yarmolyuk 《Petrology》2011,19(4):325-326
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