JMMC tectonostratigraphic type sections that are based on seismic reflection and refraction data interpretations, tied to shallow borehole data only. Possible Palaeozoic–Mesozoic formations of the JMMC are inferred from the structural and stratigraphic setting in comparison to the East Greenland analogue areas (Hamann et al. 2005). Seismic velocity models from refraction data are consistent with interpretation. Modified from Peron-Pinvidic et al. (2012a, b) and Blischke et al. (2014b. The volcanic margin is clear (see the sections in a–c) along the eastern flank of the microcontinent. The magmatic anomaly poor western margin that was formed during the second break-up (d) appears as a sharp boundary along the western margin of the microcontinent.
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