Reduced Level (RL) Plans Construct a geological map at both the 200m RL and the 400m RL using the geological information presented on the map and from the boreholes in Appendix 2. In doing so complete the following: Identify the igneous rock types listed in the boreholes, Pegmatite, Porphyrite and Quartz Feldspar Porphyry according to the International Union of Geological Sciences use of the Streckeisen international classification system and provide an image of the rock that you have identified and use the names on the map. Infer the geological boundaries, including fault zones for the region. Determine the extent of the metamorphic aureole associated with the igneous rocks. Compare geophysical techniques that could be used to confirm the veracity of your geological map at depth. (60 marks)

Appendix 2: Drilling Logs Borehole 1 Drilling Company: Rocket Drill Drillrig: Austin 1800 Dip: -90 RL: 620m Grid: Local Drill Recovery: Chips Collar: 6m Total Depth: 610m Water Table: 15m Weathering: 32.5m Water: 10L/minute From/To Geology Comments 0-6m Regolith Lateritic Material 6-10m Saprolite Relict textures of limestone rock. 10-12m Rock Recovery Loss 12-36m Limestone Massive; Oxidation ceases at 32.5m. 36 - 47 Dolerite Vesicular flow structures present indicating possible flow. 47-202 Limestone Massive 202305 Schist Garnet crystals identified 305-420 Gneiss Banded 420-522 Garnet Schist Garnet crystals identified. 522-610 Pegmatite Quartz 25%, Orthoclase 47%, Mafic 23%, Plagioclase 5% Borehole Hole 2 Drilling Company: Rocket Drill Drillrig: Austin 1800 Dip: -90 RL: 520m Grid: Local Drill Recovery: Chips Collar: 6m Total Depth: 165m Water Struck: 21m Weathering: 32m Water: 10L/minute From/To Geology Comments 0-3 Soil Unconsolidated 3-83 Limestone Massive 83 - 102 Sandstone Quartz Rich Layers in Quartz Feldspathic Greywacke Units 102 - 128 Hornfels Fine grained, indurated 128-134 Spotted Hornfels Cordierite and andalusite poikilblasts 134 - 157 Marble Mostly pure marble with occasional calc-silicate lenses. 157 165 Porphyrite Plagioclase 41%, Mafics 44%, Quartz 5%, Orthoclase 10% CIV 2403 Geology & Geomechanics .... Geology Assignment Page 8 Borehole 3 Drilling Company: Rocket Drill Drillrig: Austin 1800 Dip: -90 RL: 650m Grid: Local Drill Recovery: Chips Collar: 6m Total Depth: 430m Water Table: 54m Weathered: 54m Water: 15L/minute From/To (m) Geology Comments 0-2 Soil Unconsolidated 2-128 Limestone Massive - Water Table 54m with Fresh rock 128 - 219 Calc-Silicate Hornfels Garnet, Wollastonite and Diopside minerals. 219 -315 Quartzite Honeycomb colour with sugary texture. 315 - 336 Hornfels Hard, fine grained indurated material. 336 - 345 Spotted Hornfels Cordierite and andalusite poikiloblasts 345 - 349 Anthracite Coal Seam 349 - 355 Spotted Hornfels Sillimanite poikiloblasts 355 - 378 Marble Mostly pure marble with occasional calc-silicate lenses. 378 - 385 Porphyrite Plagioclase 44%, Mafics 41%, Quartz 6%, Orthoclase 11% 385 - 415 Marble Massive 415 - 430 Quartz Feldspar Porphyry Plagioclase 42%, Orthoclase 9%, Quartz 33%, Mafic 16% Borehole 4 Collar Details Drilling Company: Down the Earth Drillrig: RC Rig Dip: -90 RL: 490m Grid: Local Drill Core: HQ Collar: 6m Total Depth: 360m Water Table: 37m Weathering: 39m Water: 12L/minute From/To Geology Comments 0 - 4 Colluvium Unconsolidated 4 - 37 Limestone Massive Water Table 37m with fresh rock 37 - 41 Calcareous Shale Massive Water Table 37m with fresh rock 41 - 125 Sandstone Quartz Rich Layers in Quartz Feldspathic Units 125 - 147 Mudstone Massive mudstone with lithic fragments. 147 - 156 Black Shale Interbedded carbonaceous material interspersed with fine grained siltstones. Occasional thin wisps of coal seams. 156 - 159 Bituminous Coal Coal Seam 159 - 168 Black Shale Interbedded carbonaceous material interspersed with fine grained siltstones. Occasional thin wisps of coal seams. 168 - 345 Limestone Fossiliferous - Glossopteris 345 - 360 Andesite Porphyritic with plagioclase phenocrysts