45 Result(s)

Article

Paleoproterozoic A- and S-granites in the eastern Voronezh Crystalline Massif: Geochronology, petrogenesis, and tectonic setting of origin

The eastern part of the Voronezh Crystalline Massif hosts coeval S- and A-granitoids. The biotite-muscovite S-granites contain elevated concentrations of Si, Al, and alkalis (with K predominance) and relativel...

K. A. Savko, A. V. Samsonov, A. N. Larionov, Yu. O. Larionova, N. S. Bazikov in Petrology (2014)

Article

Age of the basement beneath the de long islands (New Siberian Archipelago): New geochronological data

E. A. Korago, V. A. Vernikovsky, N. N. Sobolev, A. N. Larionov… in Doklady Earth Sciences (2014)

Article

The U-Pb SIMS zircon age and geodynamic conditions of formation of granitoides of the Verkhisetsk batholith, the eastern slope of the Middle Urals

The U-Pb SIMS age dating of zircons from different-age granitoid assemblages varying in composition of the Verkhisetsk batholith shows that it comprises rocks of three age groups, formed at different stages of...

V. N. Smirnov, K. S. Ivanov, A. N. Larionov in Stratigraphy and Geological Correlation (2014)

Article

Age of granitoids in the Pripechora fault zone of the basement of Pechora Basin: First U–Pb (SIMS) data

Upper Precambrian basement of the Pechora Basin that is located between the Urals and Timan and is a part of the Pechora plate lies beneath 1–7 km of Ordovician-Cenozoic sediment cover. On the base of geophysi...

V. L. Andreichev, A. A. Soboleva, E. G. Dovzhikova, E. L. Miller… in Doklady Earth Sciences (2017)

Article

Isotopic timing of the magmatic and metamorphic events at the turn of the Archean and Proterozoic within the Belomorian belt, Fenno-Scandinavian shield

It is proved that dating high-grade metamorphism events through dating of migmatites is quite efficient. Our investigation has made it possible to identify two events of 2500 and 2700 Ma and to estimate the ag...

V. A. Glebovitskii, I. S. Sedova, A. N. Larionov… in Doklady Earth Sciences (2017)

Article

Age of island-arc granites in the Shchuch’ya zone, Polar Urals: First U–Pb (SIMS) results

The granitic magmatism occurred at the precollisional stage of the continentalization of the mafic basement of the Shchuch’ya island arc system. The first U–Pb (SIMS, SHRIMP II) data on zircons indicate three ...

V. L. Andreichev, K. V. Kulikova, A. N. Larionov, S. A. Sergeev in Doklady Earth Sciences (2017)

Article

2.5 Ga gabbro-anorthosites in the Belomorian Province, Fennoscandian Shield: Petrology and tectonic setting

The Vorochistoozersky, Nizhnepopovsky, and Severo-Pezhostrovsky gabbro-anorthosite massifs have been studied in the central part of the Belomorian Province, Fennoscandian Shield. The similarity of geological s...

A. V. Stepanova, V. S. Stepanov, A. N. Larionov, P. Ya. Azimov, S. V. Egorova… in Petrology (2017)

Article

Adakite-gabbro-anorthosite magmatism at the final (576–546 Ma) development stage of the Neoproterozoic active margin in the south-west of the Siberian craton

In the late Neoproterozoic a prolonged active continental margin mode dominated the southwestern margin of the Siberian craton. Based on results of geological, petrological-geochemical, U–Th–Pb and Sm–Nd, Rb–S...

A. E. Vernikovskaya, V. A. Vernikovsky, N. Yu. Matushkin… in Doklady Earth Sciences (2017)

Article

An Archaean Tonalite–Trondhjemite–Granodiorite Association of the Kursk Block (Voronezh Massif): Composition, Age, and Correlation with the Ukrainian Shield

Framing of the Archaean greenstone belts of the Kursk Block (KB) of the East Sarmatia preserves rocks of the TTG association: those do not form massifs with distinct boundaries, but occur as fields gradually t...

K. A. Savko, A. V. Samsonov, A. N. Larionov, E. Kh. Korish… in Doklady Earth Sciences (2018)

Article

Mesoarchean Silicic Volcanics in the Kursk Block of the Voronezh Crystalline Massif: Composition, Age, and Correlations with the Ukrainian Shield

Metarhyiolites are found along with metapelites and metabasites in sedimentary–volcanic sections of Archean greenstone belts of the Kursk block of the Eastern Sarmatia. The age of igneous protoliths of metarhy...

K. A. Savko, Corresponding Member of the RAS A. V. Samsonov… in Doklady Earth Sciences (2019)

Article

Early Cambrian Syenite and Monzonite Magmatism in the Southeast of the East European Platform: Petrogenesis and Tectonic Setting

Abstract—The paper reports new geochronological, petrological, and isotope-geochemical data on the syenites and alkali syenites of the Artyushki massif, and the monzonites of the Gusikha massif. These massifs are...

A. A. Nosova, A. A. Voznyak, S. V. Bogdanova, K. A. Savko, N. M. Lebedeva… in Petrology (2019)

Article

The Mesoarchean Tonalite-Trondhjemite-Granodiorite Associations of Eastern Sarmatia: Age and Geological Setting

Two episodes of Mesoarchean magmatism (ca. 2.95 and 3.03 Ga) have been recognized within the Kursk domain of Eastern Sarmatia. They led to the formation of the Saltyki granitoid complex, which is similar in co...

K. A. Savko, A. V. Samsonov, E. B. Sal’nikova… in Stratigraphy and Geological Correlation (2019)

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...

A. A. Arzamastsev, A. V. Stepanova… in Stratigraphy and Geological Correlation (2020)

Article

Relics of the Eoarchean Continental Crust of the Anabar Shield, Siberian Craton

In the northern part of the Anabar Shield, orthopyroxene plagiogneisses of the granulite Daldyn Group host lenses of mafic rocks surrounded by melanocratic rims. According to their chemical composition, the ma...

N. I. Gusev, L. Yu. Sergeeva, A. N. Larionov, S. G. Skublov in Petrology (2020)

Article

Chemical Composition, U–Th–Pb Age, and Geodynamic Setting of Metavolcanic Filla Series (Rauer Islands, East Antarctica)

An assemblage of mafic granulites (schists), plagiogneisses, and metasedimentary rocks, which is referred to as the Filla Series, is exposed in the Rauer Islands (opposite the eastern coast of the Prydz Bay). ...

E. V. Mikhalsky, N. L. Alexeev, I. A. Kamenev, A. N. Larionov… in Geotectonics (2020)

Article

Neoarchean Granitoids in the Western Part of the Tunguska Superterrane, Basement of the Siberian Platform: Geochronology, Petrology, and Tectonic Significance

The paper presents data on the granitoids of the Yurubchen massif, which make up the basement of the Kamov arch, Baikit uplift in the western part of the Tunguska superterrane of the Siberian craton. Rocks of ...

A. V. Samsonov, V. V. Postnikov, V. A. Spiridonov, Yu. O. Larionova… in Petrology (2021)

Article

Two High-Pressure Metamorphic Events in Early Precambrian Eclogites of the Gridino Area, Belomorian Province of the Fennoscandian Shield: Petrology and Geochronology

Early Precambrian retrogressed eclogites are abundant in the Belomorian Province of the Fennoscandian Shield. This study reports unique features of retrogressed eclogites in the Samylino study area. The eclogi...

O. A. Maksimov, V. V. Balagansky, A. I. Slabunov, A. N. Larionov in Petrology (2022)

Article

The Tectonic Evolution and Provenance of the Lower Paleozoic Terrigenous Rocks of the Omulevka and Rassokha Terranes, Northeast Russia

This paper presents the data on the geological structure of the Lower Paleozoic complexes of the Omulevka and Rassokha terranes, which occur in the western part of the Kolyma–Omolon microcontinent. The Lower P...

S. N. Sychev, A. K. Khudoley, O. Yu. Lebedeva, S. D. Sokolov, A. V. Rogov… in Geotectonics (2022)

Article

The Great Dyke of the Kola Peninsula as a Marker of an Archean Cratonization in the Northern Fennoscandian Shield

The results of geochronological and petrological studies of the largest mafic dyke in the northern part of the Fennoscandian Shield, called the Great Dyke of the Kola Peninsula (GDK), are presented. According ...

A. V. Stepanova, A. V. Samsonov, E. B. Salnikova, S. V. Egorova… in Petrology (2022)