Abstract
The Geological Survey of Greenland (GGU), the Geological Survey of Canada (GSC), and the National Aeronautical Establishment (NAE) of the National Research Council of Canada are cooperating in the GICAS project. The objective of the project is to achieve a regional, aeromagnetic coverage of the Greenland ice cap, and to produce magnetic anomaly maps for use in research on the large scale geological structures. Field work was carried out in 1983, 1984, and 1985 (Thorning et al. , 1984, 1985, 1986). The work reported in this note was originally planned for April 1986, but for technical reasons it had to be postponed until April 1987. Consequently, the subsequent processing of all the data into a regional magnetic anomaly map has been correspondingly delayed.
Highlights
This was due to the use of equipment
smaller areas had to be covered by the systematic chip sampling
which enabled the collection of larger samples in doser
Summary
The aeroradiometric survey successfully reduced the areal extent of the previously known gamma anomalies by about 50%. This was due to the use of equipment with better resolution and a helicopter with better performance, compared with the 1982 survey. Smaller areas had to be covered by the systematic chip sampling, which enabled the collection of larger samples in doser· spaced grids than originally planned. The acquired geophysical and geochemical data will be treated statistically in co-operation with IMSOR (Institute of Mathematical Statistics and Operations Research), Technical University of Denmark, and will be interpreted in a final report
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