June 2022 G-14642.71-006-R-Rev0_FINAL 19 6.3.2 Discontinuity characteristics A downhole geophysical survey of WNDD007 was completed by RDCL using an acoustic televiewer tool. Data was collected between 27.0 m and 204.6 m from the ground surface, below which a collapse of the borehole prevented the tool from surveying the lower part of the hole. Raw data was provided to WSP for interpretation of discontinuity orientation and condition, which was completed using WELLCAD software. The stereoplot of faults, shears and crushed zones (Figure 12) indicates three dominant orientations: Striking northeast and dipping 60° to the northwest. This discontinuity set is approximately parallel to a prominent regional lineament set. Striking approximately northwest and dipping about 65° to the southeast. Striking approximately north and dipping about 30° to 50° to the east. The stereoplot of joints (Figure 12) shows a prominent joint set that ranges between horizontal and dipping approximately 40° to the east. Additional characteristics of the discontinuities in WNDD007 include: Half of the measured joint orientations in WNDD007 have an inclination of less than 30° degrees, a further 20 % of joints dip between 70° to 80°. Vein orientations generally show markedly steeper orientations, with none below 10° and a significant grouping between 70° - 80°. Most disconformities can be classed as undulating, rough, and tight to very narrow with calcite infill. Discontinuity spacing is predominantly widely spaced (2 m – 600 mm), although sections of closely spaced (200 mm – 60 mm) discontinuities occur, typically over 2 m sections of core and in the porphyritic andesite units. Figure 11: Clay altered sample from WNDD007.
RkJQdWJsaXNoZXIy MjE2NDg3