GRIDS AND SURVEYS
All survey data are reported in NAD 27 UTM Zone 13N grid co-ordinates.
In May, 2005 and May, 2006, Shore contracted Spectrum to fly two separate regional airborne laser surveys (light detection and ranging system, or LIDAR) and digital camera surveys covering a 324 km2 area over the core group of mineral dispositions surrounding the Star Kimberlite and those surrounding the major part of the FALC kimberlite field, to accurately define a digital terrain/elevation model.
9.2.2 GEOLOGICAL MAPPING
During the entire underground bulk sampling program, geological mapping on both drift walls and faces was undertaken on a daily basis, following each of the drift developments.
In 1996, Shore commenced exploration in the north-central part of claim block GC#45523 (as it was identified in 1996) with a low altitude helicopter-borne magnetic survey flown by High- Sense Geophysics Ltd. (“High Sense”) of Toronto, Ontario. The helicopter-borne magnetic survey was flown at 100 metre line spacing in an east–west direction in order to confirm and further define aeromagnetic features defined by circa 1960s airborne surveys. In total, 614.5 line kilometres were flown. Several magnetic anomalies were identified and prioritised for follow-up ground geophysics.
In May, 2004, Shore contracted Fugro Airborne Surveys Limited (“Fugro”) to fly a regional GeoTEM 1000® (electromagnetic) airborne survey over the core group of mineral dispositions surrounding the Star Kimberlite and those surrounding the major part of the FALC kimberlite field. Shore used this survey to help identify kimberlite bodies with weak or non-magnetic signature, and to provide additional information on those kimberlite bodies previously identified by existing regional magnetic airborne surveys. In total, 1,231 line kilometres were completed.
The purpose of the survey was to detect resistive bodies that might be potential kimberlites set amongst conductive sediments and/or overburden. The analysis of GeoTEM data has shown that all the known kimberlites within the Shore survey area are identifiable by this airborne geophysical method. Where known kimberlite bodies occur, the GeoTEM survey maps out a resistive body with a larger surface area than that which may be inferred from the magnetic data. The depth of penetration limit of the GeoTEM system is estimated to be 250 metres.
In 2005, Shore contracted Fugro to fly a second regional GeoTEM (electromagnetic) airborne survey over the core group of mineral dispositions surrounding the Star Kimberlite and those surrounding the major part of the FALC kimberlite field and Shore’s mineral disposition group located south of the Saskatchewan River. In total, 6,769 line kilometres were completed by Fugro over three separate target areas.
P&E Mining Consultants Inc. NI 43-101 Technical Report No 159 Shore Gold Inc. - Star Diamond Project Resource Estimate Update
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