Fig. 2: Examples (main panels) and interpretations (insets) of geomorphological features extracted from 3D seismic data.
From: 3D sedimentary architecture showing the inception of an Ice Age
a RMS-amplitude map of delta-front channels in the Utsira Formation east (location in Fig. 1b). Amplitudes are extracted from a 12 ms window around a smooth intra-Utsira east surface where high amplitude values are shown in red and yellow. b Structure map of the base of the 100 km-long submarine Sunnfjord channel (c.i. = 100 ms) (location in Fig. 1a). The channel defines the base Naust horizon (base-Quaternary) and is mainly infilled by early Quaternary glacigenic debris-flows. c Maximum amplitude map of glacigenic debris-flows (GDFs) on early Quaternary clinoform (ii) (location in Fig. 1b). Maximum amplitudes are extracted from a window 30–10 ms above surface (ii) (red and yellow are high positive amplitude values).
