Hafnium isotope composition of zircon from the Kondyor clinopyroxenite-dunite massif (Khabarovsk Territory, Russia)

I. Yu Badanina; E. A. Belousova; K. N. Malitch

doi:10.1134/S1028334X19060138

Hafnium isotope composition of zircon from the Kondyor clinopyroxenite-dunite massif (Khabarovsk Territory, Russia)

I. Yu Badanina^*, E. A. Belousova, K. N. Malitch

^*Corresponding author for this work

ARC Centre of Excellence for Core to Crust Fluid Systems (incorporation ARC National Key Centre for Geochemical evolution and Metallogeny of Continents (GEMOC))

Research output: Contribution to journal › Article › peer-review

Abstract

Abstract: This study evaluates for the first time Hf-isotope characteristics of zircon from dunite of the Kondyor massif, which is closely related to an economic platinum placer deposit. The significant range in εHf_(t) values (from –8.4 ± 0.8 to 10.5 ± 1.3) in Mesozoic zircons indicates the interaction of a "juvenile" mantle source (εHf_(t) = +15) with distinct magma sources, equivalent to a subcontinental lithospheric mantle and/or a continental crust. The peculiarities of the Hf-isotopic composition of Precambrian zircons (εHf_(t) from –2.3 to +0.3) is consistent with their xenogenic origin and inheritance from basement rocks of the Siberian Craton.

Original language	English
Pages (from-to)	679-682
Number of pages	4
Journal	Doklady Earth Sciences
Volume	486
Issue number	2
DOIs	https://doi.org/10.1134/S1028334X19060138
Publication status	Published - Jun 2019

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AU - Badanina, I. Yu

AU - Belousova, E. A.

AU - Malitch, K. N.

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N2 - Abstract: This study evaluates for the first time Hf-isotope characteristics of zircon from dunite of the Kondyor massif, which is closely related to an economic platinum placer deposit. The significant range in εHf(t) values (from –8.4 ± 0.8 to 10.5 ± 1.3) in Mesozoic zircons indicates the interaction of a "juvenile" mantle source (εHf(t) = +15) with distinct magma sources, equivalent to a subcontinental lithospheric mantle and/or a continental crust. The peculiarities of the Hf-isotopic composition of Precambrian zircons (εHf(t) from –2.3 to +0.3) is consistent with their xenogenic origin and inheritance from basement rocks of the Siberian Craton.

AB - Abstract: This study evaluates for the first time Hf-isotope characteristics of zircon from dunite of the Kondyor massif, which is closely related to an economic platinum placer deposit. The significant range in εHf(t) values (from –8.4 ± 0.8 to 10.5 ± 1.3) in Mesozoic zircons indicates the interaction of a "juvenile" mantle source (εHf(t) = +15) with distinct magma sources, equivalent to a subcontinental lithospheric mantle and/or a continental crust. The peculiarities of the Hf-isotopic composition of Precambrian zircons (εHf(t) from –2.3 to +0.3) is consistent with their xenogenic origin and inheritance from basement rocks of the Siberian Craton.

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Hafnium isotope composition of zircon from the Kondyor clinopyroxenite-dunite massif (Khabarovsk Territory, Russia)

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