Selected Examples of Research and Applied Professional Experience Greg A
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Selected examples of research and applied professional experience Greg A. Shore, P.Geo. Premier Geophysics Inc., Premier Geophysics (US) Inc. 1966-2011 Shore is a Registered Professional Geoscientist (P.Geo) in Ontario and British Columbia Member of Society of Exploration Geophysicists (SEG) and Society of Mining Engineers (SME) of AIME. HIGHLIGHT: 2011 - LINEAR E-SCAN reconnaissance with integrated needing advanced methods for difficult geophysical situations, en-route 3D anomaly resolution for deep large-scale or intense including subtle targets, complex or industrial site setting conductive targets (geothermal, uranium, IOCG, SEDEX) is conditions, extreme terrain. introduced with example field data from Nevada and British Columbia geothermal projects. 2004: Hollister area, Nevada - 3D resistivity survey mapping epithermal silicification in weathered and covered volcanic terrain located 2010: Twenty square mile E-SCAN 3D geothermal mapping in Dixie southwest of Hecla’s Hollister-area Gwenivere mine development, Valley, Nevada, Terra-Gen Power LLP. 3D imagery of hydrothermal for Geologix, Vancouver, BC. plume and roots, to 2,500 metres below surface. HIGHLIGHT: 2003 – Successful mapping of structure and zoning 2009: Fifteen square mile 3D E-SCAN geothermal mapping in Buena through surficial marine clays and lake sediments. Vista Valley, Nevada, Terra-Gen Power LLP. Demonstrated new Hope Bay project, Nunavut: 3D geo-electric mapping of broad area small-crew procedures and hardware developments requiring just of resource-hosting Archean lithology and structure. two field workers for the entire field geophysical program. Classic electrical-geophysics problems of masking and distortion by conductive surficial marine clays prove manageable with true 3D 2009: 3-point Schlumberger (3pS) mapping of part of the Black Warrior data acquisition and inversion processing. Large lake areas are geothermal complex. Nevada Geothermal Power Company Inc. included, requiring floating electronics to maintain a regular grid spacing through the water areas. Survey design, execution, 3D 2008: Large scale 3D E-SCAN mapping in the Central Volcanic Region, interpretation, and report to Miramar. North Island, New Zealand, two properties totaling over 40 square kilometres, for Glass Earth Gold Ltd. 2007: Large scale 3D E-SCAN mapping in Central and Mamaku Volcanic Regions, North Island, New Zealand, for epithermal gold. Steep topography, intensively developed and farmed, major infrastructure and livestock obstacles. Four properties totaling over 65 square kilometres, for Glass Earth Gold Ltd. HIGHLIGHT: 2006 - Large scale 3D E-SCAN geothermal mapping survey in Salt Wells area, near Fallon, Nevada. Successful deep 3D imagery in conditions of <2 ohm-metres with extensive electrical noise originating at the nearby Naval Air Station. Vulcan Power Company, Bend, Oregon. 2006: 3-point Schlumberger (3pS) geothermal mapping of broad area of Salt Wells valley and Bunejug Mountains, covering many geothermal manifestations, and working in background conditions as low as <1 ohm-metre. Isolation of a number of enhanced target sub-areas for follow-up investigation. Vulcan Power Company, Bend, Oregon. Preparation for wiring the larger lake area with floating electronics (yellow- pink) and GPS positioned lake-bottom electrodes. Hope Bay area. 2006: 3-point Schlumberger (3pS) mapping of a geothermally-active Basin and Range valley. 3pS delineation and Schlumberger 2002: PAPER: Shore, G., “Multiple total field 3D DC resistivity sounding provided vertical confirmation of a low-resistivity mapping.” CIM Bulletin, v95, no 1058, Feb 2002. In 2005, CIM’s anomaly associated with Crump Geyser, Warner Valley Oregon. Barlow Memorial Medal was awarded to Shore for this paper. Probable condemnation of other valley areas through 3pS mapping. Reprints on request. Lightweight boats employed to complete survey coverage under half-frozen flood conditions. Nevada Geothermal Power Company. HIGHLIGHT: 2002 - First successful 3D resistivity mapping in the Athabasca Basin, Saskatchewan, near Cigar Lake. 3D geo-electric HIGHLIGHT: 2005 - 3D E-SCAN geothermal mapping in Pumpernickel images of the alteration envelopes of candidate unconformity Valley, Nevada, covering 60% moderate-to-steep range areas and uranium deposits under 500-600 metres of basin sandstone. Winter 40% flat valley. Dual grid spacings of 400m and 200m provided through-ice survey. 3D data and inversion processing eliminates very deep large-scale characterization, while retaining detailed interference from the difficult surface conditions of the region. Field resolution of linear and cross-breaking alteration patterns in the survey, 3D inversion exposed range rocks. Nevada Geothermal Power Inc. with U.S. and report to Cogema Department of Energy co-funding. Resources Inc. HIGHLIGHT: 2005 Shore awarded CIM’s Barlow Memorial Medal True vertical section shows for best applied geology paper published by CIM in 2002. This alteration chimneys and the description of the evolution, application and utility of the 3D E-SCAN basement unconformity. geo-electric mapping system is available as a reprint from Shore at the contact address on this sheet. This is useful reading for persons Greg Shore, P.Geo. Premier Geophysics Inc. 53 Duncton Wood Crescent, Aurora, ON, Canada L4G 7T4 Tel: 1 905 713 2704 e-mail: [email protected] web: www.premiergeophysics.com cv12b Shore/Premier - Selected examples of research and applied professional experience Page 2 of 7 January 2012 2000: PAPER: Shore, G., “Multiple total field 3D DC resistivity 1996: Development of an advanced suite of 3D data acquisition mapping.” CIM PDA Joint Annual Meeting, Toronto. History, instrumentation, providing superior system diagnostics and development, examples: 3D E-SCAN. additional lightning tolerance, with improved Induced Polarization data acquisition characteristics. 2000: Carlin Trend, Nevada. Large-area perspective gained on north Carlin trend 3D program. Detailed 3D E-SCAN geo-electric coverage 1995: Paradise Peak area, Nevada. 3D resistivity survey west of of over 8 sq. miles of near-desert conditions extends prior coverage Paradise Peak and County Line deposits, mapping covered ground. and confirms imagery of silica alteration zones enveloping recently Target was a Paradise Peak or County Line analog under cover. discovered high-grade gold vein structures similar to those of the Design, execution, 3D interpretation and reporting, Royal Eagle Ken Snyder mine to the north. Multiple look-alike anomalies Exploration Inc., Vancouver, BC. elsewhere and 3D images of the buried Hatter stock provide new drilling targets in the area. Great Basin Gold. HIGHLIGHT: 1995 – 3D E-SCAN sets new standards in speed and cost/effectiveness, regional mapping in desert cover. HIGHLIGHT: 1999 - “Electrically hostile” Archean surface environment Sleeper area, Nevada. Medium-wide spacing (600'x750') 3D proves no difficulty for 3D mapping. Archean environment 3D resistivity mapping of a large area on strike southwest of the Sleeper surveys, northern Quebec, Canada. Three large-scale programs in deposit, targeting similar structurally-controlled settings. Proof-of- typical Archean conditions demonstrate that the near-surface concept for high-speed, wide area, low cost 3D mapping to a mile regime which alternates conductive swamps and lakebed clays with depth. 21 sq. miles surveyed, 3D processed, interpreted, drilled resistive eskers or outcrop is no impediment to detailed 3D mapping within 90 days, completing exploration decision making before the in the district. Lake and townsite are enclosed within one survey first Federal BLM claim payment of US$180,000 came due. Legal area. 3 clients, confidential. title to claims maintained throughout. Royal Eagle Exploration Inc. 1999: Poster Session presentation, Shore, G.A., “Description and case Innovations like this gas- results: Multiple total field 3D DC resistivity mapping.” powered wire recovery system speed field operations, and 2nd International Symposium, Three-Dimensional Electromagnetics reduce manpower. The same (3D-EM2), Univ. of Utah, Salt Lake City, 1999. system dispenses wire at high speed, using a disc braked HIGHLIGHT: 1998 - Indirect mapping of ore setting in Carlin-type automatic damping mechanism sediments. 3D mapping in a Carlin-type sed-hosted environment to prevent backlash. tracks known gold mineralization that is spatially associated with dolomite anticlines, by accurately mapping anticline dips and offsets 1994: Goldfields area, Nevada. 3D resistivity mapping of an area on the under pervasive cover. Location, client confidential. north edge of the district, targeting typical silicic "ledge" zones. Royal Eagle Exploration Inc., Vancouver, BC. 1998: Extreme terrain in the eastern Sierras of California is mapped in 3D to show the HIGHLIGHT: 1993 - 3D E-SCAN images economic shear zones under extent of intrusive-based mineralization in a heavily industrialized minesite. Northwest Territories, Canada. 3D historic mining district. The mineralized zone E-SCAN survey of Giant Yellowknife mine site, including buildings, itself is directly imaged as an anomaly. tailings ponds, dumps. Successfully mapped all known mineralized Location, client confidential. See cover photo, zones to >750 feet below surface, in hostile geo-electric conditions, CIM paper, 2002. over an operating under- ground mine with electric HIGHLIGHT: 1998 - Dry desert sand blasting. Survey work operation In an area of Nevada known as was scheduled