Advertisement

Doklady Earth Sciences

, Volume 472, Issue 1, pp 11–15 | Cite as

The first Sm–Nd isotope–geochemical data on the Paleoproterozoic age of metamorphic rocks from the crystalline basement of the Yurovsk rise (Okhotsk massif)

  • V. K. Kuzmin
  • E. S. Bogomolov
  • V. A. Glebovitsky
Geology

Abstract

Rocks with Paleoproterozoic Sm–Nd model ages (T Nd(DM) = 2096–2350 Ma) are the sources of protoliths with gneiss, amphibolite, marble, and calciphyre of Yurovsk rise. This fact makes possible estimation of the lower age boundary of the formation of the crystalline basement of Yurovsk rise as Paleoproterozoic. According to the results of Sm–Nd, U–Pb (SHRIMP), and Pb–Pb geochronological studies, two isotope provinces are distinguished within the crystalline basement of the Okhotsk massif. The Paleoarchean province occupies the territory of Kukhtui rise, in which crust-forming processes played a key role (3250–3650 Ma). The Paleoproterozoic province includes Yurovsk rise, in which the major stages of crust formation have an age of 1900–2350 Ma.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Geological Map of the Russia and Adjacent Aquatic Areas 1: 2 500 000, Explanatory Note (Karpinsky Russ. Geol. Res. Inst., St. Petersburg, 2000).Google Scholar
  2. 2.
    Geological Map of the USSR 1: 1 000 000, New Ser., Explanatory Note, Sheet no. O-(53), 54-Okhotsk (Karpinsky Russ. Geol. Res. Inst., Leningrad, 1986).Google Scholar
  3. 3.
    State Geological Map of the Russian Federation 1: 1 000 000, the 3rd Generation, Sheet no. P-54-Oimyakon, Explanatory Note (Karpinsky Russ. Geol. Res. Inst., St. Petersburg, 2013).Google Scholar
  4. 4.
    G. A. Grinberg, Precambrian of Okhotsk Massif (Nauka, Moscow, 1968) [in Russian].Google Scholar
  5. 5.
    O. V. Avchenko, Petrology of Okhotsk Metamorphic Complex (Nauka, Moscow, 1977) [in Russian].Google Scholar
  6. 6.
    F. F. Vel’dyaksov and E. G. Peskov, in Metamorphic Complexes of the USSR East (Shilo North-Eastern Complex Sci. Res. Inst. Far-Eastern Branch USSR Acad. Sci., Vladivostok, 1973), pp. 81–89 [in Russian].Google Scholar
  7. 7.
    V. K. Kuz’min, V. A. Glebovitsky, D. I. Matukov, et al., Dokl. Earth Sci. 402 (4), 506–510 (2005).Google Scholar
  8. 8.
    V. K. Kuz’min, V. A. Glebovitsky, N. V. Rodionov, et al., Stratigr. Geol. Correl. 17 (4), 355–372 (2009).CrossRefGoogle Scholar
  9. 9.
    V. K. Kuz’min, Tikhookean. Geol., No. 5, 78–78 (1993).Google Scholar
  10. 10.
    V. G. Korol’kov, Geological Map of the USSR 1:200000, Ser. Priokhotskaya, Sheet no. O-54-4, Explanatory Note (Magadan, 1980).Google Scholar
  11. 11.
    V. I. Kovalenko, V. V. Yarmolyuk, I. K. Kozakov, et al., Dokl. Earth Sci. 348 (4), 562–564 (1996).Google Scholar
  12. 12.
    D. J. De Paolo, Neodymium Isotope Geochemistry. An Introduction (Springer, New York, 1977).Google Scholar
  13. 13.
    E. S. Bogomolov, V. K. Kuz’min, V. A. Glebovitsky, and V. F. Guseva, in Isotopic Systems and Time of Geological Processes (Inst. Precambrian Geol. Geochronol. Russ. Acad. Sci., St. Petersburg, 2009), Vol. 1, pp. 78–80 [in Russian].Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • V. K. Kuzmin
    • 1
  • E. S. Bogomolov
    • 1
    • 2
  • V. A. Glebovitsky
    • 2
    • 3
  1. 1.Karpinskii Russian Geological Research InstituteSt. PetersburgRussia
  2. 2.Institute of Precambrian Geology and Geochronology, Russian Academy of SciencesSt. PetersburgRussia
  3. 3.St. Petersburg State UniversitySt. PetersburgRussia

Personalised recommendations