406 GEOLOGY OF TUB EUKEKA DISTRICT. 



PLATE VITI. 



1. KIIYOI.ITK; MicKospiiKiiri.rnc WITH A MAKKKII FLOW sTurcTrRK. 



i 



Thin section 130, magnified (ili diameters. 'I'lic angular and irregular I'orin of the phenocrysts of 

 c|iiart/ and t'clilg|iar sbo\v tin- fractured cliara( tci. 



1. KIIYOI.ITK; CILASSY AND IIANDKD. 

 Thin section 174, magnified 14 diaiuetcr.s. Small phenocrysts of feldspar. 



