Lac Levis Aeromagnetic Survey

Regions: Dehcho Region, North Slave Region

Tags: physical sciences, mineral exploration, aeromagnetic survey

Principal Investigator: Kiss, Frank (7)
Licence Number: 16512
Organization: Natural Resources Canada
Licensed Year(s): 2019
Issued: Mar 20, 2019
Project Team: Frank Kiss (geophysicist, Geological Survey of Canada), Olivier Boulanger (geophysicist, Geological Survey of Canada), Maurice Coyle (geophysicist, Geological Survey of Canada)

Objective(s): To acquire high-resolution aeromagnetic data, and to improve our knowledge of the area; and to provide basic information to support mineral exploration.

Project Description: The objective of this airborne survey is to acquire high-resolution aeromagnetic data. This survey will be flown to improve our knowledge of the area. It will support potential future ground-based geological mapping and to provide basic information to support mineral exploration.

The survey will consist of approximately 27,600 line km of surveying flown at a line spacing of 500 m (or 1,640 feet) for traverse lines and 2400 m (or 7,850 feet) for orthogonal control lines. The flying height will be determined by a smooth draped surface with a minimum terrain clearance of 150 m (appoximately 500 feet). The intensity of the total magnetic field will be measured from the aircraft. Please note that aircraft will not touch down except at municipal airports. Based on past flying in the region, the weather may be bad or there may be high winds in the area so the aircraft may fly only once or twice every week. Under such conditions, the survey may take longer to finish. There will be no ground-based survey whatsoever.

Aeromagnetic surveys provide useful information necessary for communities, aboriginal associations, and government to make land use decisions. The aircraft crew will provide economic benefits to the local community by requiring food and lodging, car rental as well as utilizing airport services for the duration of the survey.

Copies of the maps will be sent to the local communities upon request. The data will also be made available on-line for free download through the Geoscience Data Repository for Aeromagnetic Data ( The data will be published as maps available digitally for free download through NRCan's GeoGratis application (

The fieldwork for this study will be conducted from March 19, 2019 to December 31, 2019.