Description

This map of the first vertical derivative of the total magnetic field was derived from data acquired during a helicopter-borne aeromagnetic survey carried out by Fugro Airborne Surveys during the period between February 4 to March 15, 2010. The data were recorded using split-beam cesium vapour magnetometers (sensitivity = 0.005 nT) rigidly mounted on each of the two Astar 350B aircraft (C-FGSC and C-GAVO). The nominal traverse and control line spacings were, respectively, 400 m and 2 400 m, and the aircraft flew at a nominal terrain clearance of 100 m. Traverse lines were oriented N30°E with orthogonal control lines. The flight path was recovered following post-flight differential corrections to the raw Global Positioning System (GPS) data and inspection of ground images recorded by a vertically-mounted video camera. The survey was flown on a pre-determined flight surface to minimize differences in magnetic values at the intersections of control and traverse lines.

Resources

Name	Format	Description	Link
Yukon Geological Survey publication metadata	HTML		https://data.geology.gov.yk.ca/Reference/43171
Original metadata (https://open.yukon.ca)	HTML		https://open.yukon.ca/information/38c50491-48bb-4e15-978f-7e50fde7cf90
Kluane grid files	ZIP		https://ygsftp.gov.yk.ca/publications/openfile/2010/of2010-21-28/Kluane_grids.zip
Kluane technical report	PDF		https://ygsftp.gov.yk.ca/publications/openfile/2010/of2010-21-28/Kluane_Technical_Report.pdf
map	PDF		https://ygsftp.gov.yk.ca/publications/openfile/2010/of2010-22.pdf

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