10.6084/m9.figshare.4535414.v1 Carmen Gaina Carmen Gaina Aziz Nasuti Aziz Nasuti Geoffrey S. Kimbell Geoffrey S. Kimbell Anett Blischke Anett Blischke Break-up and seafloor spreading domains in the NE Atlantic Geological Society of London 2017 NE Atlantic Figures NAG 300 km wavelength anomaly model anomaly grid MF 7 satellite Geology 2017-01-10 10:53:58 Figure https://geolsoc.figshare.com/articles/figure/Break-up_and_seafloor_spreading_domains_in_the_NE_Atlantic/4535414 Figures showing the long wavelength of the NAG–TEC magnetic anomaly grid, detailed magnetic anomalies and isochrons. Fig. S1. (a) NAG–TEC magnetic anomaly grid – high pass filter for anomalies with wavelengths of 300 km and higher. This grid has been substracted from the NAG–TEC total magnetic anomaly grid and replaced by equivalent total field values extracted from the MF7 satellite based lithospheric magnetic anomaly model (Maus <i>et al.</i>, 2009); (b) MF7 satellite based lithospheric magnetic anomaly model (Maus <i>et al.</i>, 2009) showing magnetic anomalies with wavelengths of 300 km and higher.