Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
First Data on the Age of Metamorphic Schists from the Taz Peninsula (Arctic, Western Siberia). / Ivanov, K. S.; Koroteev, V. A.; Erokhin, Yu V. и др.
в: Doklady Earth Sciences, Том 491, № 1, 01.03.2020, стр. 135-138.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - First Data on the Age of Metamorphic Schists from the Taz Peninsula (Arctic, Western Siberia)
AU - Ivanov, K. S.
AU - Koroteev, V. A.
AU - Erokhin, Yu V.
AU - Ponomarev, V. S.
AU - Travin, A. V.
N1 - Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - The 40Ar/39Ar dating of metamorphic schists from the basement of the West Siberian Platform exposed by Lenzitskaya well no. 77 on the Taz Peninsula was performed. The samples collected at depths of 3503 and 3515 m yielded age dates of 251.6 ± 3.5 and 271.2 ± 3.5 Ma. The age of ~271 Ma reflects the age of metamorphism of schists, which was induced by a strong tectonomagmatic event, associated with the onset of emplacement of rift zones and outflow of basalts in the Permian–Triassic. The age of ~252 Ma coincides with the period of the most intense emplacement of submeridional rifts in the basement of the West Siberian Platform. This process was accompanied by extension and thinning of the Earth’s crust in this region, which resulted in the exhumation of rocks from the mid-crystal level. The age boundary of ~250 Ma was established in the metamorphic and intrusive complexes of western Siberia and the Urals. This age is fixed almost everywhere and is correlated with the age of formation of the Siberian Trap Province.
AB - The 40Ar/39Ar dating of metamorphic schists from the basement of the West Siberian Platform exposed by Lenzitskaya well no. 77 on the Taz Peninsula was performed. The samples collected at depths of 3503 and 3515 m yielded age dates of 251.6 ± 3.5 and 271.2 ± 3.5 Ma. The age of ~271 Ma reflects the age of metamorphism of schists, which was induced by a strong tectonomagmatic event, associated with the onset of emplacement of rift zones and outflow of basalts in the Permian–Triassic. The age of ~252 Ma coincides with the period of the most intense emplacement of submeridional rifts in the basement of the West Siberian Platform. This process was accompanied by extension and thinning of the Earth’s crust in this region, which resulted in the exhumation of rocks from the mid-crystal level. The age boundary of ~250 Ma was established in the metamorphic and intrusive complexes of western Siberia and the Urals. This age is fixed almost everywhere and is correlated with the age of formation of the Siberian Trap Province.
KW - Ar/Ar age
KW - Arctic
KW - basement
KW - metamorphic schists
KW - Taz Peninsula
KW - West Siberian Platform
KW - Ar-40/Ar-39 age
UR - http://www.scopus.com/inward/record.url?scp=85084464367&partnerID=8YFLogxK
U2 - 10.1134/S1028334X20030071
DO - 10.1134/S1028334X20030071
M3 - Article
AN - SCOPUS:85084464367
VL - 491
SP - 135
EP - 138
JO - Doklady Earth Sciences
JF - Doklady Earth Sciences
SN - 1028-334X
IS - 1
ER -
ID: 24262142