TY - JOUR

T1 - Multiple tectonomagmatic reactivation of the unexposed basement in the northern Siberian craton: from Paleoproterozoic orogeny to Phanerozoic kimberlite magmatism

AU - Skuzovatov, Sergei Yu

AU - Shatsky, Vladislav S.

AU - Wang, Qin

AU - Ragozin, Alexey L.

AU - Kostrovitsky, Sergey I.

N1 - Funding Information: This work was supported by the State Key Laboratory for Mineral Deposits Research (Nanjing University); Russian Foundation for Basic Research (RFBR) [18-05-70014]; IGC State Assignment Project [0284-2021-0007]. This study is a contribution to the IGC State Assignment Project and was supported by the Russian Foundation for Basic Research (Grant No. 18-05-70014). Zircon studies have been partially funded the Grant from the State Key Laboratory for Mineral Deposits Research (Nanjing University) to Vlad Shatsky. We appreciate the effort of Nadezhda Priyatkina and Tatiana Donskaya, whose thorough reviews helped to significantly improve the manuscript. The editorial handling and exceptionally useful remarks by Robert Stern are also acknowledged. Publisher Copyright: © 2021 Informa UK Limited, trading as Taylor & Francis Group.

PY - 2022

Y1 - 2022

N2 - Zircon xenocrysts from two diamond-barren kimberlite pipes (Leningrad and Ruslovaya) in the West Ukukit kimberlite field opened a ‘window’ to the buried crustal basement in the northern Siberian craton. Zircon U-Pb ages reveal a close affinity of the basement of the Khapchan belt to the Archaean Anabar province and a significant tectonomagmatic reworking in the Paleoproterozoic (~2.1–1.8 Ga) due to collision between the Anabar province and the Olenek province. The West Ukukit kimberlite field experienced multiple tectonomagmatic reactivation from ~670 to 144 Ma, which can be attributed to interaction of the deep crust with mantle-derived melts. Hf isotope composition of zircon xenocrysts reveals significant addition of juvenile material into the crust during the Paleoproterozoic orogeny in diamond-barren kimberlite fields, which is different from the reworking crust in the southern Yakutia diamondiferous kimberlite fields. Eruption of the Leningrad and Ruslovaya pipes were constrained as the Late Jurassic, much later than the well-known Late Silurian-Earth Devonian kimberlites in the West Ukukit kimberlite field. A NE-trending, >2000 km long kimberlite corridor is proposed to account for a prolonged lithospheric channel for episodic eruption of kimberlites in the Siberian craton. The diamond storage in the lithosphere beneath the West Ukukit kimberlite field may have been largely reduced by the Paleoproterozoic orogeny and Phanerozoic reworking.

AB - Zircon xenocrysts from two diamond-barren kimberlite pipes (Leningrad and Ruslovaya) in the West Ukukit kimberlite field opened a ‘window’ to the buried crustal basement in the northern Siberian craton. Zircon U-Pb ages reveal a close affinity of the basement of the Khapchan belt to the Archaean Anabar province and a significant tectonomagmatic reworking in the Paleoproterozoic (~2.1–1.8 Ga) due to collision between the Anabar province and the Olenek province. The West Ukukit kimberlite field experienced multiple tectonomagmatic reactivation from ~670 to 144 Ma, which can be attributed to interaction of the deep crust with mantle-derived melts. Hf isotope composition of zircon xenocrysts reveals significant addition of juvenile material into the crust during the Paleoproterozoic orogeny in diamond-barren kimberlite fields, which is different from the reworking crust in the southern Yakutia diamondiferous kimberlite fields. Eruption of the Leningrad and Ruslovaya pipes were constrained as the Late Jurassic, much later than the well-known Late Silurian-Earth Devonian kimberlites in the West Ukukit kimberlite field. A NE-trending, >2000 km long kimberlite corridor is proposed to account for a prolonged lithospheric channel for episodic eruption of kimberlites in the Siberian craton. The diamond storage in the lithosphere beneath the West Ukukit kimberlite field may have been largely reduced by the Paleoproterozoic orogeny and Phanerozoic reworking.

KW - crustal reworking

KW - diamond

KW - Hf isotopes

KW - kimberlite

KW - magmatism

KW - Siberian craton

KW - U-Pb age

KW - zircon

UR - http://www.scopus.com/inward/record.url?scp=85104823283&partnerID=8YFLogxK

U2 - 10.1080/00206814.2021.1916784

DO - 10.1080/00206814.2021.1916784

M3 - Article

AN - SCOPUS:85104823283

VL - 64

SP - 1119

EP - 1138

JO - International Geology Review

JF - International Geology Review

SN - 0020-6814

IS - 8

ER -