ГЕОХРОНОЛОГИЯ ДАЕК УЛЬТРАОСНОВНЫХ ЛАМПРОФИРОВ ТОМТОРСКОГО КОМПЛЕКСА

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ГЕОХРОНОЛОГИЯ ДАЕК УЛЬТРАОСНОВНЫХ ЛАМПРОФИРОВ ТОМТОРСКОГО КОМПЛЕКСА. / Malyshev, S.V.; Gladkochub, E.A.; Karimov, A.A.; Ivanov, A.V.; Shalamova, A.A.; Pasenko, A.M.; Sitkina, D.R.; Travin, A.V.; Bryanskiy, N.V.

In: ГЕОДИНАМИКА И ТЕКТОНОФИЗИКА, Vol. 17, No. 1, 0874, 17.02.2026.

Research output: Contribution to journal › Article › peer-review

Author

Malyshev, S.V. ; Gladkochub, E.A. ; Karimov, A.A. ; Ivanov, A.V. ; Shalamova, A.A. ; Pasenko, A.M. ; Sitkina, D.R. ; Travin, A.V. ; Bryanskiy, N.V. / ГЕОХРОНОЛОГИЯ ДАЕК УЛЬТРАОСНОВНЫХ ЛАМПРОФИРОВ ТОМТОРСКОГО КОМПЛЕКСА. In: ГЕОДИНАМИКА И ТЕКТОНОФИЗИКА. 2026 ; Vol. 17, No. 1.

BibTeX

@article{0e335d783f8c446598e5d6df8b481781,

title = "ГЕОХРОНОЛОГИЯ ДАЕК УЛЬТРАОСНОВНЫХ ЛАМПРОФИРОВ ТОМТОРСКОГО КОМПЛЕКСА",

abstract = "This work studies thin ultramafic lamprophyre (UML) dikes associated with the Tomtor alkaline-ultramafic massif (Arctic Siberia). 40Ar/39Ar dating yielded an emplacement age of 710 Ma for the dikes. U-Pb dating of calcite indi cates a 400 Ma year old low-temperature recrystallization event. Both age constraints correlate with some notable phases of Tomtor magmatism. The dike locations 15 km away from the main massif suggest a more extensive magmatic province than previously thought. The spatial association of the dikes with the Mesoproterozoic Udzha paleorift highlights the crucial role of inherited tectonic structures in controlling over magmatism. It is probable that the formation of both the dikes and the Tomtor massif was governed by two key factors: (1) favorable lithospheric setting due to the location at the junction of the Archean Daldyn terrane and Paleoproterozoic Khapchan orogenic belt, which is responsible for the localiza tion of the Udzha paleorift; and (2) the reorganization of tectonic stresses within the northern Siberian Craton during the Neoproterozoic and Devonian. The magmatic and consequent recrystallization stages (710 and 400 Ma, respectively) identified within the Udzha paleorift, correspond to major regional geodynamic events, such as Neoproterozoic tectonic convergence in Central Taimyr and Devonian rifting (Vilyui rift system). {\textcopyright} Malyshev S. V., Gladkochub E. A., Karimov A. A., Ivanov A. V., Pasenko A. M., Shalamova A. A., Sitkina D. R., Travin A. V., Bryanskiy N. V., 2026.",

keywords = "40Ar/39Ar dating, alkaline magmatism, Siberian craton, subduction, tectonics, Tomtor, U-Pb dating, Udzha paleorift, ultramafic lamprophyres, Russian Federation, Siberia, Siberian Craton, Archean, argon-argon dating, calcite, Devonian, dike, emplacement, geochronology, lamprophyre, magmatism, Proterozoic, recrystallization, rift zone, subduction zone, terrane, ultramafic rock, uranium-lead dating",

author = "S.V. Malyshev and E.A. Gladkochub and A.A. Karimov and A.V. Ivanov and A.A. Shalamova and A.M. Pasenko and D.R. Sitkina and A.V. Travin and N.V. Bryanskiy",

note = "Export Date: 23 March 2026; Cited By: 0; Correspondence Address: S.V. Malyshev; Institute of the Earth{\textquoteright}s Crust, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russian Federation; email: s.malyshev@spbu.ru",

year = "2026",

month = feb,

day = "17",

doi = "10.5800/gt-2026-17-1-0874",

language = "русский",

volume = "17",

journal = "ГЕОДИНАМИКА И ТЕКТОНОФИЗИКА",

issn = "2078-502X",

publisher = "Institute of the Earth's Crust",

number = "1",

}

RIS

TY - JOUR

T1 - ГЕОХРОНОЛОГИЯ ДАЕК УЛЬТРАОСНОВНЫХ ЛАМПРОФИРОВ ТОМТОРСКОГО КОМПЛЕКСА

AU - Malyshev, S.V.

AU - Gladkochub, E.A.

AU - Karimov, A.A.

AU - Ivanov, A.V.

AU - Shalamova, A.A.

AU - Pasenko, A.M.

AU - Sitkina, D.R.

AU - Travin, A.V.

AU - Bryanskiy, N.V.

N1 - Export Date: 23 March 2026; Cited By: 0; Correspondence Address: S.V. Malyshev; Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russian Federation; email: s.malyshev@spbu.ru

PY - 2026/2/17

Y1 - 2026/2/17

N2 - This work studies thin ultramafic lamprophyre (UML) dikes associated with the Tomtor alkaline-ultramafic massif (Arctic Siberia). 40Ar/39Ar dating yielded an emplacement age of 710 Ma for the dikes. U-Pb dating of calcite indi cates a 400 Ma year old low-temperature recrystallization event. Both age constraints correlate with some notable phases of Tomtor magmatism. The dike locations 15 km away from the main massif suggest a more extensive magmatic province than previously thought. The spatial association of the dikes with the Mesoproterozoic Udzha paleorift highlights the crucial role of inherited tectonic structures in controlling over magmatism. It is probable that the formation of both the dikes and the Tomtor massif was governed by two key factors: (1) favorable lithospheric setting due to the location at the junction of the Archean Daldyn terrane and Paleoproterozoic Khapchan orogenic belt, which is responsible for the localiza tion of the Udzha paleorift; and (2) the reorganization of tectonic stresses within the northern Siberian Craton during the Neoproterozoic and Devonian. The magmatic and consequent recrystallization stages (710 and 400 Ma, respectively) identified within the Udzha paleorift, correspond to major regional geodynamic events, such as Neoproterozoic tectonic convergence in Central Taimyr and Devonian rifting (Vilyui rift system). © Malyshev S. V., Gladkochub E. A., Karimov A. A., Ivanov A. V., Pasenko A. M., Shalamova A. A., Sitkina D. R., Travin A. V., Bryanskiy N. V., 2026.

AB - This work studies thin ultramafic lamprophyre (UML) dikes associated with the Tomtor alkaline-ultramafic massif (Arctic Siberia). 40Ar/39Ar dating yielded an emplacement age of 710 Ma for the dikes. U-Pb dating of calcite indi cates a 400 Ma year old low-temperature recrystallization event. Both age constraints correlate with some notable phases of Tomtor magmatism. The dike locations 15 km away from the main massif suggest a more extensive magmatic province than previously thought. The spatial association of the dikes with the Mesoproterozoic Udzha paleorift highlights the crucial role of inherited tectonic structures in controlling over magmatism. It is probable that the formation of both the dikes and the Tomtor massif was governed by two key factors: (1) favorable lithospheric setting due to the location at the junction of the Archean Daldyn terrane and Paleoproterozoic Khapchan orogenic belt, which is responsible for the localiza tion of the Udzha paleorift; and (2) the reorganization of tectonic stresses within the northern Siberian Craton during the Neoproterozoic and Devonian. The magmatic and consequent recrystallization stages (710 and 400 Ma, respectively) identified within the Udzha paleorift, correspond to major regional geodynamic events, such as Neoproterozoic tectonic convergence in Central Taimyr and Devonian rifting (Vilyui rift system). © Malyshev S. V., Gladkochub E. A., Karimov A. A., Ivanov A. V., Pasenko A. M., Shalamova A. A., Sitkina D. R., Travin A. V., Bryanskiy N. V., 2026.

KW - 40Ar/39Ar dating

KW - alkaline magmatism

KW - Siberian craton

KW - subduction

KW - tectonics

KW - Tomtor

KW - U-Pb dating

KW - Udzha paleorift

KW - ultramafic lamprophyres

KW - Russian Federation

KW - Siberia

KW - Siberian Craton

KW - Archean

KW - argon-argon dating

KW - calcite

KW - Devonian

KW - dike

KW - emplacement

KW - geochronology

KW - lamprophyre

KW - magmatism

KW - Proterozoic

KW - recrystallization

KW - rift zone

KW - subduction zone

KW - terrane

KW - ultramafic rock

KW - uranium-lead dating

UR - https://www.gt-crust.ru/jour/article/view/2205

UR - https://www.mendeley.com/catalogue/4491562a-dce6-3d59-af3e-2ecc8981d3db/

U2 - 10.5800/gt-2026-17-1-0874

DO - 10.5800/gt-2026-17-1-0874

M3 - статья

VL - 17

JO - ГЕОДИНАМИКА И ТЕКТОНОФИЗИКА

JF - ГЕОДИНАМИКА И ТЕКТОНОФИЗИКА

SN - 2078-502X

IS - 1

M1 - 0874

ER -

ID: 150937101