27 Result(s)

Article

Age Limits for the Zaonega Formation of the Ludicovian Superhorizon and the Shunga Event in the Onega Basin: New U–Pb Zircon Data for the Konchezero Sill

New U–Pb data for zircon from the Konchezero sill reliably determine the age of the Suisari Formation of the Ludicovian and the limit of the maximum age of the volcanogenic–sedimentary Zaonega Formation with i...

A. V. Stepanova, Corresponding Member of the RAS A. V. Samsonov… in Doklady Earth Sciences (2024)

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

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

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

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

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 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

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

Geochronology and geochemistry of acid metavolcanites, Losevo Series, Voronezh crystalline massif

R. A. Terentiev, K. A. Savko, A. V. Samsonov, A. N. Larionov in Doklady Earth Sciences (2014)

Article

New U-Pb data on the age of rhyolite from Middle Zauralye: Evidence for change of crustal geodynamic regimes

B. I. Chuvashov, V. S. Bochkarev, N. N. Sobolev, A. N. Larionov in Doklady Earth Sciences (2013)

Article

U-Pb age of autochthonous paleoproterozoic charnockite in the Aldan Shield

Autochthonous and parautochthonous charnockites in granulite facies of the Aldan Shield (the Aldan River upper flow) were dated. According to the geological observation data, the autochthonous and parautochtho...

V. A. Glebovitskii, I. S. Sedova, N. G. Berezhnaya… in Doklady Earth Sciences (2012)

Article

The Averinskii diorite-trondhjemite complex on the eastern slope of the Urals: New geological and geochronological (TIMS and SHRIMP-II) data

V. N. Smirnov, K. S. Ivanov, E. V. Lobova, T. B. Bayanova… in Doklady Earth Sciences (2012)

Article

Principle stages of granite and pegmatite formation in the southeastern part of the Main Sayan Fault

We performed U-Pb dating by the SHRIMP II method of zircon from granites and pegmatites in the southeastern part of the Main Sayan Fault (northern part of Khamar-Daban and southeastern part of the Belya-Kitoi ...

V. B. Savel’eva, S. L. Presnyakov, E. N. Lepekhina… in Doklady Earth Sciences (2012)

Article

Geodynamics of the Eravna zone (Uda-Vitim fold system of the Transbaikal region): Geological and geochronological data

S. V. Ruzhentsev, O. R. Minina, V. A. Aristov, B. G. Golionko… in Doklady Earth Sciences (2010)

Article

Paleozoic and early mesozoic magmatism manifestations in the early Precambrian structure of the South Yenisei Ridge

This study characterizes some issues of the Paleozoic and Mesozoic tectonomagmatic evolution of Precambrian structures from the southwestern margin of the Siberian craton. The relationship between the Devonian...

V. A. Vernikovsky, A. E. Vernikovskaya, N. Yu. Matushkin… in Doklady Earth Sciences (2010)

Article

The most ancient metamorphic event of the Aldan granulite area (Eastern Siberia): Results of local zircon dating of ultrametamorphic granitoids

V. A. Glebovitskii, I. S. Sedova, N. G. Berezhnaya… in Doklady Earth Sciences (2010)

Article

Age, mineral geochemistry, and conditions of the formation of the Shueretskoe garnet deposit (Belomorian Belt)

S. G. Skublov, L. K. Levskii, Yu. B. Marin, I. M. Gembitskaya… in Doklady Earth Sciences (2009)

Article

U-Pb geochronology of migmatite leucosomes based on zircon SIMS measurements and correlation with TIMS-ID data on monazite

Sh. K. Baltybaev, A. N. Larionov, O. A. Levchenkov… in Doklady Earth Sciences (2009)