fig14.htm

Figure 14. U-Pb zircon isotopic dating of the olivine gabbronorite intrusion in Lodeinyi Island. 1 - Zircon from the host hornfels and migmatite at 0.5 m from the contact; 2 - zircon from the central part of the "diffusion'' contact zone; 3 - zircon from the inner-contact gabbronorite at 0.5 m from the contact; 4 - zircon from the olivine gabbronorites from the internal part of the body at 10 m from the contact.


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