Contour maps of geomagnetic field intensity in the vicinity of Syowa Station, Antarctica

Measurements of geomagnetic field intensity were carried out in the vicinity of Syowa Station (East and West Ongul Islands, Teoya, Langhovde, and Skarvsnes) and on the route between Syowa and Mizuho Stations by the 17th wintering party of Japanese Antarctic Research Expedition. The total magnetic intensity was measured on the ground by using a portable proton magnetometer, and then iso-intensity contours were drawn. From a comparison of these magnetic maps with the geological maps, it is found that there is a close correspondence between the distribution of magnetic anomaly and the geological structure.