Airborne geophysical surveying in Greenland during 1998 consisted of a magnetic project referred to as ‘Aeromag 1998 ’ and a combined electromagnetic and magnetic project referred to as ‘AEM Greenland 1998’. The Government of Greenland financed both with administration managed by the Geological Surv...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.605.5510 http://www.geus.dk/publications/review-greenland-98/gsb183p34-38.pdf |
| Summary: | Airborne geophysical surveying in Greenland during 1998 consisted of a magnetic project referred to as ‘Aeromag 1998 ’ and a combined electromagnetic and magnetic project referred to as ‘AEM Greenland 1998’. The Government of Greenland financed both with administration managed by the Geological Survey of Denmark and Greenland (GEUS). With the completion of the two projects, approximately 305 000 line km of regional high-resolution magnetic data and approxi-mately 75 000 line km of detailed multiparameter data (electromagnetic, magnetic and partly radiometric) are now available from government financed projects. Figure 1 shows the location of the surveyed areas with high-resolution geophysical data together with the area selected for a magnetic survey in 1999. Completion of the two projects was marked by the release of data on 1 March, 1999. The data are included in the geoscien-tific databases at the Survey for public use; digital data and maps may be purchased from the Survey. The combined electromagnetic and magnetic survey in 1998 completes the five-year project AEM Greenland 1994–1998 that has had the primary objective of stim-ulating mining exploration activity in Greenland (Stemp & Thorning 1995). During this five-year period, high-resolution electromagnetic and magnetic data have been acquired from selected areas in Greenland (Fig. 1). The surveys cover regions of contrasting topography and geology from the Archaean craton to basalts of the Tertiary igneous province. A complete reference list including publications from the previous surveys is found in Thorning & Stemp (1998). Contractors for the two projects were selected under EU open tender procedures in 1997, which included options for extending the projects in 1997 to 1998. Aeromag 1998 Approximately 71 000 line km of total field magnetic data were acquired in southern West Greenland in the region indicated in Figs 1 and 2. The survey block cov-ers part of the Archaean craton between 63°40´N and 65°45´N, ranging from the permanent ice of the ... |
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