Fig. 2From: Microstructural and microchemical analysis of zircon in a syenite lithic fragment from Ulleung Island volcano, South KoreaCL images of zircon grains. The dark-CL cores within the grains are partially or entirely replaced by bright-CL domains. The images are arranged sequentially a–j based on the degree of recrystallization. Orange arrows highlight faded oscillatory zoning. Pink arrows indicate inward-penetrating features of bright-CL domainsBack to article page