Early Cretaceous Granitic and Monzonitic Rocks of the Southern Part of the Zhuravlevka Terrane (Sikhote-Alin): Geochemical Composition and Melt Sources

N. N. Kruk, V. I. Gvozdev, A. A. Orekhov, E. A. Kruk, S. A. Kasatkin, V. V. Golozubov, S. N. Rudnev, Sh Aoki, T. I. Komiya, V. P. Kovach, P. A. Serov

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Abstract: The article presents new geological, geochronological, mineralogical, geochemical, and isotopic data on the Early Cretaceous granitic rocks of the southern part of the Zhuravlevka Terrane (Sikhote-Alin). It is shown that four intrusive complexes containing significant amounts of granitic rocks were formed almost simultaneously in this area in the Early Cretaceous (about 100 Ma). These magmatic associations differ in rock set, their mineralogical characteristics, and chemical composition, varying from medium-potassium tonalites and granodiorites depleted in incompatible elements to shoshonitic monzonitic rocks enriched in HFSE and REE. The geochemical and isotopic characteristics of the granitic rocks indicate that the source of their melts was dominated by essentially juvenile metabasite crust with a limited contribution of the upper-crustal metasedimentary rocks. The diversity of geochemical types of the granitic rocks is explained by variable metabasite and metapelite contributions to their source, upper crustal contamination during magma ascent, as well as the variable contribution of the mantle source and different mechanisms of mantle–crust interaction.

Original languageEnglish
Pages (from-to)220-238
Number of pages19
JournalRussian Journal of Pacific Geology
Volume13
Issue number3
DOIs
Publication statusPublished - 1 May 2019

Keywords

  • continental crust
  • Far East of Russia
  • geochemistry
  • geochronology
  • granitic rocks
  • petrogenesis
  • Sikhote-Alin
  • A-TYPE GRANITES
  • PRIMORYE
  • MAGMATISM
  • U-PB
  • GEOCHRONOLOGY
  • CONTINENTAL-CRUST
  • EVOLUTION
  • PLASMA-MASS SPECTROMETRY
  • ND
  • OROGENIC BELT

Fingerprint

Dive into the research topics of 'Early Cretaceous Granitic and Monzonitic Rocks of the Southern Part of the Zhuravlevka Terrane (Sikhote-Alin): Geochemical Composition and Melt Sources'. Together they form a unique fingerprint.

Cite this