Search Results - "Karmanov, N. S."
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Formation Conditions of Devonian Basites of the Vilyui–Markha Dike Swarm in the Vilyui Paleorift (Siberian Platform)
Published in Doklady earth sciences (01-07-2023)“…Melt inclusions in the minerals from a dolerite dike of the Vilyui–Markha dike swarm, located on the northwestern shoulder of the Vilyui paleorift, have been…”
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2
Feldspar Megacrysts as a Source of Information on Crustal Contamination of Basaltic Melt
Published in Geochemistry international (01-07-2023)“…— The paper discusses data on the elemental composition and 87 Sr/ 86 Sr, and δ 18 O isotopic ratios of feldspar megacrysts collected from lava flows, tuffs,…”
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3
Fe–Ti–Au–U Mineralization of the Ozerninskii Ore Cluster (West Trans-Baikal Region, Russia)
Published in Doklady earth sciences (01-12-2022)“…Comprehensive mineralogical and geochemical studies of gold–brannerite nuggets have been carried out in alluvial deposits of Kamennyi Creek. Its source is…”
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4
Evidence of Microbial-Induced Mineralization in Rocks of the Tomtor Carbonatite Complex (Arctic Siberia)
Published in Doklady earth sciences (01-02-2020)“…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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5
Range-by-Range Calculations of Absorption Coefficients as a Method for Increasing the Accuracy of Electron Probe Microanalysis
Published in Journal of analytical chemistry (New York, N.Y.) (01-07-2020)“…To increase the accuracy of electron probe microanalysis, it was proposed to calculate absorption coefficients range-by-range, with selecting an optimum…”
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Erratum to: The Holocene Explosive Eruption on Vetrovoi Isthmus (Iturup Island) as a Source of the Marker Tephra Layer of 2000 cal. yr BP in the Central Kuril Island Arc
Published in Doklady earth sciences (2024)“…An Erratum to this paper has been published: https://doi.org/10.1134/S1028334X23070164…”
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7
Method for Determining Water Content in Natural Rhyolitic Melts by Raman Spectroscopy and Electron Microprobe Analysis
Published in Petrology (01-07-2021)“…The paper presents an original method developed by the authors for determining water content in highly polymerized rhyolite and rhyodacite glasses in melt…”
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8
The Physicochemical Conditions for the Formation of Recent Basalts of Lokon Volcano, Sulawesi Island in the Pacific Ocean: Melt Inclusion Data
Published in Russian journal of Pacific geology (01-06-2023)“…We studied phenocrysts and melt inclusions in order to evaluate physical and chemical conditions of petrogenesis of the Sulawesi Island (southwestern Pacific…”
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9
Signatures of the Involvement of Microorganisms in the Formation of Nodular Monazite (Kularite), Republic of Sakha (Yakutia), Russia
Published in Doklady earth sciences (2024)“…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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THE APPLICATION OF SCANNING ELECTRON MICROSCOPY USING ENERGY- AND WAVELENGTH DISPERSIVE SPECTROMETERS FOR CHEMICAL DATING OF URANIUM MINERALIZATION ON THE EXAMPLE OF CARBONACEOUS SHALES OF THE DABANZHALGA SUITE (EAST SAYAN)
Published in Geodinamika i tektonofizika (01-06-2022)“…On the one hand, the widespread use of electron microprobe analysis in the version of a scanning electron microscope (SEM) equipped with an energy dispersive…”
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11
The Holocene Explosive Eruption on Vetrovoi Isthmus (Iturup Island) as a Source of the Marker Tephra Layer of 2000 cal. yr BP in the Central Kuril Island Arc
Published in Doklady earth sciences (01-07-2023)“…Geochemical study of volcaniclastic material and radiocarbon dating of charred plant debris from Holocene deposits of the Guram site, which is located in…”
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12
Immiscibility of Fluoride–Calcium and Silicate Melts in Trachyrhyolitic Magma: Data on Acidic Volcanic Rocks from the Nyalga Basin, Central Mongolia
Published in Petrology (01-07-2018)“…An Early Cretaceous (120 ± 5 Ma) trachyrhyolite lava sheet in the Nyalga basin, Central Mongolia, includes a domain (∼0.5 km 2 ) of unusual fluorite-enriched…”
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13
The First Find of Oxyborates in Rocks of the Norilsk-1 Intrusion (Northwestern Siberian Platform)
Published in Doklady earth sciences (01-09-2019)“…In the taxitic gabbro-dolerites of the upper contact zone of the Norilsk-1 intrusion, five boron minerals were found: kotoite Mg 3 (BO 3 ) 2 , suanite Mg 2 B 2…”
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14
Unique Clinkers and Paralavas from a New Nyalga Combustion Metamorphic Complex in Central Mongolia: Mineralogy, Geochemistry, and Genesis
Published in Petrology (01-03-2018)“…The paper presents mineralogical and geochemical data on clinkers and paralavas and on conditions under which they were formed at the Nyalga combustion…”
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15
Structural and Morphological Features of the Participation of Microorganisms in the Formation of Nb–REE–Rich Ores of the Tomtor Field (Russia)
Published in Doklady earth sciences (01-02-2021)“…Data indicating the important role of microorganisms in the redistribution of REEs in the weathering crust and the decisive role in the concentration of REEs…”
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Ultrapotassic Rock from the Tomtor Complex of Ultrabasic Alkaline Rocks and Carbonatites (Arctic Siberia)
Published in Doklady earth sciences (01-12-2020)“…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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17
Comendites and pantellerites of Nemrut volcano, eastern Turkey: Genesis and relations between the trachyte-comenditic, comenditic, and pantelleritic melts
Published in Petrology (01-11-2015)“…The paper reports data on the mineralogy, geochemistry, phase composition of comendites and pantellerites from Nemrut volcano, eastern Turkey; estimates of the…”
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18
V–Cr–Nb–W-Bearing Rutile in Metamorphic Rocks of the Slyudyanka Complex, Southern Baikal Region
Published in Geology of ore deposits (01-12-2017)“…The paper presents data on accessory rutile in Cr–V-rich metamorphic rocks of the Slyudyanka crystalline (granulite) complex in the southern Baikal region. The…”
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Altered rocks of the Onguren carbonatite complex in the Western Tansbaikal Region: Geochemistry and composition of accessory minerals
Published in Geology of ore deposits (01-07-2017)“…The paper discusses the mineralogy and geochemistry of altered rocks associated with calcite and dolomite–ankerite carbonatites of the Onguren dyke–vein…”
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20
Visible and “invisible” forms of gold and silver in the crystallization products of melts in the Fe–S–Ag–Au system: experimental data
Published in Doklady earth sciences (01-06-2017)“…The forms of Au and Ag occurrence in the crystallization products of melts in the Fe–S–Ag–Au system depending on the proportions of Fe/S and Ag/Au have been…”
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