Геохронология ТТГ ассоциации в мезоархее Курского блока Восточной Сарматии

Константин Аркадьевич Савко; Николай Сергеевич Базиков; Екатерина Хафисовна Кориш; Александр Владимирович Самсонов; Екатерина Борисовна Сальникова; Александр Николаевич Ларионов; Мария Владимировна Червяковская

doi:10.17308/geology.2019.2/1770

Authors

Константин Аркадьевич Савко Voronezh State University
Николай Сергеевич Базиков Voronezh State University
Екатерина Хафисовна Кориш Voronezh State University
Александр Владимирович Самсонов Institute of Precambrian geology and geochronology RAS (IPGG RAS)
Екатерина Борисовна Сальникова Institute of Precambrian geology and geochronology RAS (IPGG RAS)
Александр Николаевич Ларионов Centre of Isotopic Research of A. P. Karpinsky Russian Geological Research Institute
Мария Владимировна Червяковская Zavaritsky Institute of Geology and Geochemistry, Russian Academy of Sciences Ural Branch

DOI:

https://doi.org/10.17308/geology.2019.2/1770

Keywords:

TTG, magmatism, Archaean, Kursk domain, Middle Dnieper domain, Azov domain

Abstract

The zircons isotope dating using the SIMS and TIMS methods allowed establishing three pulses of TTG magmatism in the Kursk domain of Eastern Sarmatia: 2960, 3025 and 3050 Ma. Consequently, the TTG formation of the Kursk domain was a long-term process that continued at least 90 million years. They have the same chemical characteristics as the associations of Middle Dnieper (2,97–3,03 Ga) and Azov (2,97–3,04 Ga) domains that are similar in age. The zircons Lu-Hf isotopic data (εHf(2960) = +0,2 – +2,6) indicate a short-term crustal prehistory of the TTG melts sources.

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Author Biographies

Константин Аркадьевич Савко, Voronezh State University

Doctor of Geologicial and Mineralogical Sciences, Head of the Chair of Mineral Resource, geological faculty
Николай Сергеевич Базиков, Voronezh State University

Candidate of Geological and Mineralogical Sciences, associate Professor of the Mineral Resource Department, Geological faculty
Екатерина Хафисовна Кориш, Voronezh State University

ведущий инженер лаборатории комплексных исследований
Александр Владимирович Самсонов, Institute of Precambrian geology and geochronology RAS (IPGG RAS)

Doctor of Geologicial and Mineralogical Sciences, Deputy Director
Екатерина Борисовна Сальникова, Institute of Precambrian geology and geochronology RAS (IPGG RAS)

Candidate of Geological and Mineralogical Sciences, Senior Researcher
Александр Николаевич Ларионов, Centre of Isotopic Research of A. P. Karpinsky Russian Geological Research Institute

Candidate of Geological and Mineralogical Sciences, Senior Researcher
Мария Владимировна Червяковская, Zavaritsky Institute of Geology and Geochemistry, Russian Academy of Sciences Ural Branch

Post Graduate Student