SECTION 2 Environmental Setting C:\D Data\GWS C Drive\GWS\Client Files\1344 OGL - WKP\4 Deliverables\WKP Final Draft Report\June Report\WAI-985-000-REP-LC-0030. Final_Rev_0.docx 8 Figure 6 Geologic Section of the Vein System (from Rhys, 2019) The vein zones are 90-95% quartz and are highly brittle in nature. Most of the area is dominated by Rhyolite flow (80%) that becomes increasingly silicified near the veins. In the main gorge a zone exists that is host to numerous veins and is highly brittle and fractured. Information from the exploration drilling logs indicate the footwall of the veins could be more highly fractured. The other main geologic unit is polymictic Rhyolite pyroclastics (20%) which, when silicified near veins, are also brittle and fractured. However, where these materials are strongly clay-altered, less fracturing is present. The EG vein is the largest vein structure in the Wharekirauponga deposit and is continuous over a length of at least 1000 m, but has not yet been fully delineated to the north and south. The vein dips to the west and has not been closed out up dip. Up dip the vein becomes thin or absent, however gold bearing clay gouge is present. The vein shows multiple phases of development and associated textures, although, overall, the vein presents as being massive with little void space e.g. vugs. Aside from the main vein, the EG vein structure has a series of extensional hanging wall veins the are oriented more northerly such that they connect the main structures (veins and Andesite dike). These veins are exposed at the surface, pinch out to the east and terminate at the Andesite dike in the west. The EG vein is known to have at least four main footwall veins; one that is oriented in a north-south direction and three that are subparallel to the main vein. These commonly have a brecciated texture and are interpreted to originate from fault movement. The extent of the EG footwall veins have yet to be closed out spatially. The T-Stream vein parallels the EG vein, is around 5 m wide and has a strike length of at least 400 m, although it is yet to be closed out in the north. The vein is observed to be broken, oxidized quartz and quartz breccia. The western vein has not been considered as a viable mining target at the time of preparing this report. The vein is, however, oriented parallel to the EG and T-Stream veins with a similar westerly dip. For the purpose of this assessment, it has been assumed that the western vein is structurally linked to the other veins.
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