Research output: Contribution to journal › Article › peer-review
Early Cretaceous Granitic and Monzonitic Rocks of the Southern Part of the Zhuravlevka Terrane (Sikhote-Alin) : Geochemical Composition and Melt Sources. / Kruk, N. N.; Gvozdev, V. I.; Orekhov, A. A. et al.
In: Russian Journal of Pacific Geology, Vol. 13, No. 3, 01.05.2019, p. 220-238.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Early Cretaceous Granitic and Monzonitic Rocks of the Southern Part of the Zhuravlevka Terrane (Sikhote-Alin)
T2 - Geochemical Composition and Melt Sources
AU - Kruk, N. N.
AU - Gvozdev, V. I.
AU - Orekhov, A. A.
AU - Kruk, E. A.
AU - Kasatkin, S. A.
AU - Golozubov, V. V.
AU - Rudnev, S. N.
AU - Aoki, Sh
AU - Komiya, T. I.
AU - Kovach, V. P.
AU - Serov, P. A.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - 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.
AB - 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.
KW - continental crust
KW - Far East of Russia
KW - geochemistry
KW - geochronology
KW - granitic rocks
KW - petrogenesis
KW - Sikhote-Alin
KW - A-TYPE GRANITES
KW - PRIMORYE
KW - MAGMATISM
KW - U-PB
KW - GEOCHRONOLOGY
KW - CONTINENTAL-CRUST
KW - EVOLUTION
KW - PLASMA-MASS SPECTROMETRY
KW - ND
KW - OROGENIC BELT
UR - http://www.scopus.com/inward/record.url?scp=85067392811&partnerID=8YFLogxK
U2 - 10.1134/S1819714019030047
DO - 10.1134/S1819714019030047
M3 - Article
AN - SCOPUS:85067392811
VL - 13
SP - 220
EP - 238
JO - Russian Journal of Pacific Geology
JF - Russian Journal of Pacific Geology
SN - 1819-7140
IS - 3
ER -
ID: 20642233