TECTONIC FABRIC DEVELOPMENT AND MINERALIZATION OF THE DUKETON GREENSTONE-BELT, WESTERN-AUSTRALIA

In Duketon, a mafic-dominated rock sequence surrounds a felsic-epiclas tic rock sequence. D-1 L-S tectonites in the ma = fic-dominated sequen ce are absent from the felsic rocks suggesting that these epiclastics were deposited post-D-1, on top of older greenstones. In the older gre enstones, the linear shape of the Christmas Well orebody, together wit h auriferous quartz veins deformed by L-S tectonites in the mineralise d corridor through Hack Well, implies that the D, fabric-forming event strongly influenced the shape of the orebodies and probably the timin g of mineralisation.