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1. Regional Geophysics
Aeromagnetic coverage is available for most of the Yukon. Most flight lines are at half-mile spacing and digital data was captured by digitizing contoured analog data as most surveys are 1950-1960 vintage. Hard copy maps and digital data sets are available from the Geological Survey of Canada Regional Geophysics Division.
Regional gravity data is also available from the GSC at a 10 km sample spacing, with a greater density on highways.
Regional Aeromagnetic Surveys in Yukon: 2007-2009
F. Kiss, Central Canada Division, Geological Survey of Canada, 615 Booth Street Ottawa, Ontario.
Regional aeromagnetic surveys continue to be an important component of Yukon's geoscience program to meet the needs of the mineral, oil and gas exploration industry, hydrocarbon resource assessments, land use planning and government research and mapping initiatives. Aeromagnetic surveys are an efficient and cost effective means of mapping bedrock over large areas under thick surficial cover and in difficult terrain. Gaps in aeromagnetic data coverage still remain in Yukon. Since 2003, the Yukon Geological Survey (YGS) has increased efforts to in-fill gaps and also improve old coverage with more modern high-resolution aeromagnetic data.
In 2007, YGS in partnership with the Geological Survey of Canada (GSC), initiated a large aeromagnetic survey in the Wernecke Mountains area. This survey was funded by INAC’s Strategic Investment in Northern Economic Development (SINED), Targeted Investment Program. The GSC’s participation was made possible through the Northern Development Program of the Earth Sciences Sector, NRCan. The contracted survey flying was completed by Fugro Airborne Surveys in late 2007 and the results are being compiled in preparation for joint YGS-GSC public release in early 2008.