A satellite magnetic anomaly map of Greenland
A satellite magnetic anomaly map of Greenland has been compiled using data from the POGO 2, 4 and 6 satellites. Data from quiet passes have been extracted and processed into an equivalent source representation in the form of a contour map of the satellite magnetic field at an altitude of 500 km. The...
| Published in: | Geophysical Journal International |
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| Main Authors: | , |
| Format: | Text |
| Language: | English |
| Published: |
Oxford University Press
1982
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| Subjects: | |
| Online Access: | http://gji.oxfordjournals.org/cgi/content/short/71/3/599 https://doi.org/10.1111/j.1365-246X.1982.tb02787.x |
| Summary: | A satellite magnetic anomaly map of Greenland has been compiled using data from the POGO 2, 4 and 6 satellites. Data from quiet passes have been extracted and processed into an equivalent source representation in the form of a contour map of the satellite magnetic field at an altitude of 500 km. The satellite magnetic anomaly map contains some very pronounced anomalies: A magnetic maximum of 8nT centred in northern Greenland at approximately 79° 30′ N, 37° W, a smaller but also significant maximum over southern Greenland at 61° 30′ N, 44° W, and two minima over the Disko-Nuûgssuaq area of central West Greenland (70° N, 52° W) and the Scoresby Sund area of central East Greenland (71° N, 24° W), respectively. A qualitative comparison with major geological features shows a good general correlation, although no final conclusions should be drawn from the existing POGO data. The magnetic anomaly map is also compared with the scarce existing geophysical data from this area. Major changes in crustal properties and/or structures are indicated under the Inland Ice across a line connecting the Disko-Nuûgssuaq area and the Scoresby Sund area. |
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