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

doi:10.1134/S1819714019030047

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

Authors: Kruk N.N.¹^,2, Gvozdev V.I.³, Orekhov A.A.³, Kruk E.A.¹, Kasatkin S.A.³, Golozubov V.V.³, Rudnev S.N.¹, Aoki S.⁴, Komiya T.I.⁵, Kovach V.P.⁶, Serov P.A.⁷
Affiliations:
1. Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
2. Novosibirsk State University
3. Far East Geological Institute, Far East Branch, Russian Academy of Sciences
4. Okayama University of Science
5. Tokyo University
6. Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
7. Geological Institute, Kola Science Center, Russian Academy of Sciences
Issue: Vol 13, No 3 (2019)
Pages: 220-238
Section: Article
URL: https://journals.rcsi.science/1819-7140/article/view/211628
DOI: https://doi.org/10.1134/S1819714019030047
ID: 211628

Cite item

Full Text

Open Access
Restricted Access

Access granted
Restricted Access

Subscription Access

Abstract
About the authors
References
Statistics

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.

Keywords

granitic rocks, geochemistry, geochronology, petrogenesis, continental crust, Sikhote-Alin, Far East of Russia

Username
Password
Remember me

Forgot password?	Register

Username
Password
Remember me

Forgot password?	Register

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

Full Text

Abstract

Keywords

About the authors

This website uses cookies