Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Late Cretaceous Rapakivi Granites and Associating Rocks in the Evolution of the Okhotsk-Chukotka Active Margin. / Vernikovskaya, A. E.; Fridovsky, V. Yu; Matushkin, N. Yu и др.
в: Doklady Earth Sciences, Том 524, № 2, 15.09.2025, стр. 1-9.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Late Cretaceous Rapakivi Granites and Associating Rocks in the Evolution of the Okhotsk-Chukotka Active Margin
AU - Vernikovskaya, A. E.
AU - Fridovsky, V. Yu
AU - Matushkin, N. Yu
AU - Tarasov, Ya A.
AU - Bogdanov, E. A.
AU - Rodionov, N. V.
AU - Kadilnikov, P. I.
N1 - This work was financially supported by the Russian Science Foundation (grant no. 24-17-00057).
PY - 2025/9/15
Y1 - 2025/9/15
N2 - We report new data on the mineralogy, petrography, geochemistry, U–Th–Pb geochronology, and Sm–Nd and Rb–Sr isotopy of granitoids and associating rocks of the Sup, Duzunya and Batyrchan plutons, including rocks with rapakivi texture, which we combine into the new Severookhotsk complex. These rocks were formed in the Cenomanian–Coniacian ages 94–88 Ma (U–Pb SHRIMP-II data) in the back-arc of the West Okhotsk flank zone of the Okhotsk-Chukotka volcanoplutonic belt. Sm–Nd and Rb–Sr isotopic data confirm the presence of both an enriched mantle and a continental crust component in the composition of the magmatic source of the rapakivi granites. We show that the Severookhotsk complex magmatism and the Sn-polymetallic and Au–Bi mineralization of the Allakh-Yun tectonic zone have the same origin.
AB - We report new data on the mineralogy, petrography, geochemistry, U–Th–Pb geochronology, and Sm–Nd and Rb–Sr isotopy of granitoids and associating rocks of the Sup, Duzunya and Batyrchan plutons, including rocks with rapakivi texture, which we combine into the new Severookhotsk complex. These rocks were formed in the Cenomanian–Coniacian ages 94–88 Ma (U–Pb SHRIMP-II data) in the back-arc of the West Okhotsk flank zone of the Okhotsk-Chukotka volcanoplutonic belt. Sm–Nd and Rb–Sr isotopic data confirm the presence of both an enriched mantle and a continental crust component in the composition of the magmatic source of the rapakivi granites. We show that the Severookhotsk complex magmatism and the Sn-polymetallic and Au–Bi mineralization of the Allakh-Yun tectonic zone have the same origin.
KW - Late Cretaceous
KW - Okhotsk-Chukotka volcanoplutonic belt
KW - U–Th–Pb geochronology
KW - Verkhoyansk-Chukotka folded area
KW - active continental margin
KW - geochemistry
KW - granite
KW - monzonite
KW - rapakivi
KW - southeastern margin of Northern Asia
UR - https://www.scopus.com/pages/publications/105016458988
UR - https://elibrary.ru/item.asp?id=82875903
UR - https://www.mendeley.com/catalogue/7bb3ad05-c052-35b2-be7b-6e39fdfc665b/
U2 - 10.1134/S1028334X25608004
DO - 10.1134/S1028334X25608004
M3 - Article
VL - 524
SP - 1
EP - 9
JO - Doklady Earth Sciences
JF - Doklady Earth Sciences
SN - 1028-334X
IS - 2
ER -
ID: 69838282