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Metchosin volcanics. 



Tertiary. 

 Upper Eocene. 



Mesozoic. 



Ophitic basalt flows tuffs 

 and agglomerates, with 

 intrusive diabase dykes. 



Batholithic and minor in- 

 trusives 



Upper Jurassic and possibly 

 Lower Cretaceous, correlated 

 with Coast Range batholith. 

 Diorite porphyrite Dykes. 



Saanich granodiorite Stocks. 



Colquitz quartz-diorite gneiss Batholith of quartz— di- 



orite gneiss, and quartz- 

 feldspar (salic) and horn- 

 blendite (femic) facies, 

 usually interbanded. 

 Wark gabbro-diorite gneiss. Batholith of gabbro— di- 



orite gneiss, with un- 

 foliated gabbro and salic 

 gabbro facies. 



Vancouver group. 

 Sutton formation. 



Vancouver volcanics. 



Jurassic and Triassic. 



Lower Jurassic 

 possibly includ- 

 ing Triassic. Lentils of crystalline lime- 

 stone in Vancouver vol- 

 canics. 

 Lower Jurassic 

 possibly includ- 

 ing Triassic. Metamorphic andesites, 

 basalts, and olivine bas- 

 alts, porphyries, amygda- 

 loids, tuffs, and agglom- 

 erates and intrusivedykes 

 and sills of basalt and 

 andesite porphyrites. 



Vancouver group — The metamorphic rocks of the 

 region around Victoria are the Vancouver volcanics and 

 the Sutton limestones, both of the Vancouver group and 

 presumably of lower Mesozcic age. The Vancouver 

 volcanics, the more important formation, consist largely 

 of metamorphic flow rocks of medium basicity, meta- 

 andesites, and some meta-basalts. Interbedded with the 

 flow rocks are amygdaloids, and fragmental volcanics, 

 tuffs and agglomerates, and cutting them all are dykes 

 and sills of basalt porphyrite. All of the volcanics have 

 been metamorphosed and greatly altered, the secondary 



