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Article
Sources of Neogene Rare Metal–Titanium Placers of the Northeastern Wall of the Dnieper–Donets Basin: First Results of U–Pb Geochronological Studies of Detrital Zircon
Runoff of terrigenous material involved in the structure of Neogene rare metal–Ti placers of the northeastern side of the Dniepr–Donets Basin (DDB) is determined using lithological and mineralogical methods in...
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Article
The First Results of U–Th–Pb Isotopic Dating of Detrital Zircons from the Chenka Sandstones: A Contribution to the Stratigraphy of the Cimmerides of Mountainous Crimea
The first results of U–Th–Pb isotope dating of detrital zircons (dZr) from the Chenka sandstones of the Cimmerides of Mountainous Crimea are presented. Carboniferous–Triassic dZr dominate among dZr from Chenka...
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Article
Rifting in the Paleoproterozoic Onega Basin: Geochemistry of Volcano–Sedimentary Rocks of the Zaonega Formation
The study of the volcano–sedimentary sequence in the lower part of the Zaonega formation in the Paleoproterozoic Onega structure (Karelian craton, Fennoscandian Shield) has shown that tuffaceous and high-silic...
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Article
Cretaceous–Eocene Flysch of the Sochi Synclinorium (Western Caucasus): Sources of Clastic Material Based on the Results of U–Th–Pb Isotope Dating of Detrital Zircons
The first results of the U–Th–Pb isotope dating of detrital zircons (dZr, N = 130, n = 91) from the middle Danian sandstones (63.9–65.3 Ma) of the Cretaceous–Eocene Novorossiisk–Anapa flysch widely developed in t...
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Article
Open AccessErratum to: Metamorphism of the Uni Suite as an Indicator of Early Precambrian Collisional Processes in the Vyatka Belt, Northeast of Volgo–Uralia
An Erratum to this paper has been published: https://doi.org/10.1134/S1028334X23070073
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Article
The Nature of the Puchezh–Katunki Impact Structure (the Central Part of the East European Platform): Results of the U‒Th‒Pb Isotope System Study of Detrital Zircons from Explosive Breccias
The Puchezh–Katunki crater is located in the central part of the East European Platform in the area of the Gorky Reservoir, has a diameter of ~80 km, and is morphologically expressed by the central uplift of t...
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Article
Arkose Sandstones of the Kebekta Group of the Ugui Graben (Aldan Shield): Age, Provenance, and Deposition Setting
The results of U–Pb (ID-TIMS) and U–Th–Pb (LA-ICP-MS) geochronological studies of baddeleyite from dolerite dikes of the Sulumat Complex and detrital zircon from red arkose sandstones of the Kebekta Group of t...
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Article
Open AccessMetamorphism of the Uni Suite as an Indicator of Early Precambrian Collisional Processes in the Vyatka Belt, Northeast of Volgo–Uralia
According to the core data from two deep holes, the following mineral assemblages were identified in metapelitic rocks of the Uni Suite in the central part of the Vyatka Belt, sandwiched between Archean blocks...
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Article
Open AccessEastern Margin of the Neoarchean Tunguska Superterrane: Data from Boreholes in the Central Part of the Siberian Platform
The paper presents data on granites and gneisses recovered by Kulindinskaya-1 hole drilled in the central part of the Siberian Craton. The biotite granites retain a porphyritic texture, correspond to I-type ac...
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Article
Paleoproterozoic (2.51–2.40 Ga) Igneous Provinces of the Northeastern Fennoscandia: Geochemistry of Volcanic Rocks and Correlation with Intrusive Complexes
The results of geochemical studies of Paleoproterozoic volcanic rocks in the structure of the Polmak–Pechenga–Imandra–Varzuga belt of the northeastern part of the Fennoscandian Shield are presented. Taking int...
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Article
The First Results of U–Pb Dating of Detrital Zircons from the Oligocene of the Southeastern Part of the Voronezh Anteclise and Their Importance for Paleogeography
The first results of U–Pb (LA–ICP–MS) isotope dating of detrital zircons (dZr) from the Upper Oligocene sands of the Poltava Formation exposed on the southeastern slope of the Voronezh anteclise are presented,...
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Article
Olivine and Clinopyroxene Phenocrysts as a Proxy for the Origin and Crustal Evolution of Primary Mantle Melts: a Case Study of 2.40 Ga Mafic Sills in the Kola–Norwegian Terrane, Northern Fennoscandia
New petrographic, geochemical, and isotopic (Sr, Nd, and δ18О) data on olivine and pyroxene phenocrysts provide constraints on the composition and crustal evolution of primary melts of Paleoproterozoic (2.40 Ga) ...
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Article
Fragments of Paleoproterozoic Large Igneous Provinces in Northern Fennoscandia: Baddeleyite U–Pb Age Data for Mafic Dykes and Sills
New data on the age of dolerite dikes in the NE part of the Kola province of the Fennoscandinavian shield and the picrodolerite sills that cut the dikes are presented. The results of U–Pb ID-TIMS baddeleyite d...
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Article
1860-Ma I-Shaped Mafic Sills in the Murmansk Craton, Eastern Fennoscandia: Petrology and Tectonic Setting of Within-plate Mafic Events during Nuna Assembly
1860-Ma within-plate mafic rocks of the Eastern Murman Sill Province were studied in the northern part of the Murmansk Craton, where they compose sheet bodies (sills) up to 100 m thick in Archean granitoids an...
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Article
Mafic Magmatism of Northeastern Fennoscandia (2.06–1.86 Ga): Geochemistry of Volcanic Rocks and Correlation with Dike Complexes
The comprehensive geochemical and isotopic-geochronological study of Early Proterozoic volcanic rocks in structure of the Polmak–Pechenga–Imandra–Varzuga belt and dikes and sills of the Murmansk and Kola–Norwe...
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Article
2.4 Ga Mafic Dikes and Sills of Northern Fennoscandia: Petrology and Crustal Evolution
New petrographic, geochemical, and Sm-Nd isotopic data provide constraints on the petrogenesis of ca. 2400 Ma gabbronorite, picrodolerite and dolerite mafic sills and dikes in the Liinakhamari and Sorvaranger ...
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Article
Ti/Zr isomorphism in wadeite: The crystal structure of the titanium-dominant K2(Ti0.55Zr0.45)Si3O9 member of the series
The crystal structure of the titanium-rich mineral wadeite K2(Ti0.55Zr0.45)Si3O9 from rischorrites of the Khibiny Alkaline Massif (Kola Peninsula, Russia) is studied by X-ray diffraction (XCalibur-S diffractomete...
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Article
Chemical composition of melts of the Early Eocene volcanic center at Cape Khairyuzova, western Kamchatka: Evidence from inclusions in minerals
Original authors’ data on the mineralogy and composition of melt inclusions in two samples show that the Early Eocene magmatic rocks at Cape Khairyuzova were formed by mixing melts of mafic, intermediate, and ...
