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Doklady Earth Sciences

, Volume 482, Issue 1, pp 1138–1141 | Cite as

Age and Sources of Metasandstone of the Chiney Subgroup (Udokan Group, Aldan Shield): Results of U–Th–Pb Geochronological (LA–ICP–MS) and Nd Isotope Study

  • V. P. Kovach
  • A. B. Kotov
  • D. P. Gladkochub
  • E. V. Tolmacheva
  • S. D. Velikoslavinsky
  • B. M. Gorokhovsky
  • V. N. Podkovyrov
  • N. Yu. Zagornaya
  • Yu. V. Plotkina
Geology
  • 4 Downloads

Abstract

Results of U–Th–Pb LA–ICP–MS analysis of detrital zircons from metasandstones of the Chiney Subgroup (Udokan Group, Aldan Shield) have been obtained. It has been revealed that rocks of the Paleoproterozoic (about 1.90, 1.98, and 2.50 Ga) and Neoarchean (2.55 and 2.72 Ga) were their provenance sources. Deposition of the Chiney Subgroup occurred in the interval 1.87–1.90 Ga and was separated in time from the accumulation of the Kodar Subgroup siliciclastics (2.1–2.3 Ga).

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • V. P. Kovach
    • 1
  • A. B. Kotov
    • 1
  • D. P. Gladkochub
    • 2
  • E. V. Tolmacheva
    • 1
  • S. D. Velikoslavinsky
    • 1
  • B. M. Gorokhovsky
    • 1
  • V. N. Podkovyrov
    • 1
  • N. Yu. Zagornaya
    • 1
  • Yu. V. Plotkina
    • 1
  1. 1.Institute of Precambrian Geology and GeochronologyRussian Academy of SciencesSt. PetersburgRussia
  2. 2.Institute of the Earth’s Crust, Siberian BranchRussian Academy of SciencesIrkutskRussia

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