Abstract
To evaluate the subsurface structural setting and the correlation between the surface and subsurface geological structure of the Younghae basin area, magnetic survey was carried out. The measurements were taken in and between rice fields to avoid the artificial objects that can lower the overall signal to noise (S/N) ratio. The total magnetic intensity map was reduced to the pole (RTP) map, which was then processed to smooth out field variations caused by various noise sources, and to facilitate the qualitative and quantitative interpretation. The structural elements deduced from the RTP, band-pass filtered and downward continuation maps show the same trends as the local geological structure. The igneous basement rocks are the main causative bodies for the magnetic anomalies. Fifteen profiles showing the significant magnetic anomalies were analyzed for target depth estimations. Two methods: the slope and power spectrum methods were employed and the basement depths deduced range from 63 meters to 354 meters.
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Abdallatif, T.F., Lee, J.M. Shallow magnetic survey of the Younghae Basin area, South Korea: Evaluation of structural setting. Geosci J 5, 327–338 (2001). https://doi.org/10.1007/BF02912704
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DOI: https://doi.org/10.1007/BF02912704