Fig. 2: The regional magnetic polarity structure of the Dragon Horn ridge segment as documented by sea-surface magnetic survey profiles.
a Magnetic anomaly lineations. The boundaries of Brunhes (0.78 Myr) and Matuyama (2.581 Myr) obtained by ref. 19 are marked by pink and blue dashes respectively. b Geomagnetic polarity timescale36. c–e are comparisons between observed anomaly (red) and magnetic forward modeling results (blue) assuming a constant thickness source layer with 1 km. Where the figures in (c–e) noted by red color are half-spreading rates (in km Myr−1) from the middle C2An.1n Chron to present-day and black numbers are the corresponding distances (in km).
