Gravity and Magnetic Field and Tectonic Features of the Greenland-Iceland-Faroe Ridge

Iceland and its neighbouring areas are an important part of the Arctic. In order to study in depth the heavy magnetic field and tectonic features of the Greenland-Iceland-Faroe Ridge and neighbouring areas, existing data on heavy magnetism were systematically collated and collected. Magnetic polarisation anomalies based on the variable latitude polarisation method, using heavy magnetic field edge boundary identification to obtain bitfield edge identification information, and using sliding average (with a filter window of 15 km) to find local anomalies in free space gravity and local anomalies in magnetisation poles. The existing geological and geophysical research results were integrated, and an in-depth analysis of the Greenland-Iceland-Faroe Ridge and neighbouring areas was carried out to determine the fracture tectonic framework of the area. Based on the correspondence between the anomalous features and the fractures, the north-east-trending and north-west-trending deep and large fractures were classified, in order of F1 to F4, and the two groups of north-east-trending regional fractures were classified, in order of F5 to F6, which play an important controlling role in the base structure, properties and the rump shelf.The tectonic units are divided by fractures, namely the Kolbeinsey-Aegir Ridge, the Greenland-Iceland-Faroe Complex Tectonic Belt, the Rekjanes Ridge, the Greenland Plate and the Faroe-Mainland Tectonic Belt. This paper provides further insight into the tectonic evolution of the Greenland-Iceland-Faroe Ridge and adjacent areas and provides geophysical information for hydrocarbon exploration in the Arctic and geothermal exploration in Iceland.