Research output: Contribution to journal › Article › peer-review
Late paleozoic–early mesozoic granite magmatism on the arctic margin of the siberian craton during the kara-siberia oblique collision and plume events. / Vernikovsky, Valery A.; Vernikovskaya, Antonina; Proskurnin, Vasilij et al.
In: Minerals, Vol. 10, No. 6, 571, 01.06.2020, p. 1-39.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Late paleozoic–early mesozoic granite magmatism on the arctic margin of the siberian craton during the kara-siberia oblique collision and plume events
AU - Vernikovsky, Valery A.
AU - Vernikovskaya, Antonina
AU - Proskurnin, Vasilij
AU - Matushkin, Nikolay
AU - Proskurnina, Maria
AU - Kadilnikov, Pavel
AU - Larionov, Alexander
AU - Travin, Alexey
N1 - Funding: This research was financially supported by the Russian Science Foundation, grant no. 19-17-00091; and by the Russian Foundation for Basic Research, grants numbers 18-05-70035 and 20-05-00360.
PY - 2020/6/1
Y1 - 2020/6/1
N2 - We present new structural, petrographic, geochemical and geochronological data for the late Paleozoic–early Mesozoic granites and associated igneous rocks of the Taimyr Peninsula. It is demonstrated that large volumes of granites were formed due to the oblique collision of the Kara microcontinent and the Siberian paleocontinent. Based on U-Th-Pb isotope data for zircons, we identify syncollisional (315–282 Ma) and postcollisional (264–248 Ma) varieties, which differ not only in age but also in petrochemical and geochemical features. It is also shown that as the postcollisional magmatism was coming to an end, Siberian plume magmatism manifested in the Kara orogen and was represented by basalts and dolerites of the trap formation (251–249 Ma), but also by differentiated and individual intrusions of monzonites, quartz monzonites and syenites (Early–Middle Triassic) with a mixed crustal-mantle source. We present a geodynamic model for the formation of the Kara orogen and discuss the relationship between collisional and trap magmatism.
AB - We present new structural, petrographic, geochemical and geochronological data for the late Paleozoic–early Mesozoic granites and associated igneous rocks of the Taimyr Peninsula. It is demonstrated that large volumes of granites were formed due to the oblique collision of the Kara microcontinent and the Siberian paleocontinent. Based on U-Th-Pb isotope data for zircons, we identify syncollisional (315–282 Ma) and postcollisional (264–248 Ma) varieties, which differ not only in age but also in petrochemical and geochemical features. It is also shown that as the postcollisional magmatism was coming to an end, Siberian plume magmatism manifested in the Kara orogen and was represented by basalts and dolerites of the trap formation (251–249 Ma), but also by differentiated and individual intrusions of monzonites, quartz monzonites and syenites (Early–Middle Triassic) with a mixed crustal-mantle source. We present a geodynamic model for the formation of the Kara orogen and discuss the relationship between collisional and trap magmatism.
KW - Carboniferous
KW - Geochemistry
KW - Granites
KW - Kara microcontinent
KW - Kara orogen
KW - Oblique collision
KW - Permian
KW - Petrography
KW - Siberian Craton
KW - Siberian plume
KW - Triassic
KW - U-Th-Pb andAr/Ar geochronology
KW - RAPID ERUPTION
KW - SEVERNAYA-ZEMLYA-ARCHIPELAGO
KW - RODINIA
KW - TRACE-ELEMENT
KW - granites
KW - petrography
KW - PALEOMAGNETIC DATA
KW - TECTONIC EVOLUTION
KW - NOVAYA-ZEMLYA
KW - geochemistry
KW - NORTHERN RUSSIA
KW - carboniferous
KW - Ar-39 geochronology
KW - CENTRAL-TAIMYR
KW - REGION
KW - oblique collision
KW - U-Th-Pb and(40)Ar
UR - http://www.scopus.com/inward/record.url?scp=85087176455&partnerID=8YFLogxK
UR - https://elibrary.ru/item.asp?id=43302210
U2 - 10.3390/min10060571
DO - 10.3390/min10060571
M3 - Article
AN - SCOPUS:85087176455
VL - 10
SP - 1
EP - 39
JO - Minerals
JF - Minerals
SN - 2075-163X
IS - 6
M1 - 571
ER -
ID: 24614424