Figure 6

Spatial distribution of bottom AABW ages (neutral density: γn > 28.27 kg m−3) (mean of observations within 100 m of the bottom). The symbols used are the same as in Fig. 1. Black contour lines represent isobaths at 1000 m intervals from 1000 to 3000 m and at 500 m intervals below 3000 m. The 3000 m isobath is indicated by the thick black line. The figure was generated using MATLAB (version R2021a; https://www.mathworks.com/products/matlab.html) and the M_Map toolbox (http://www.eoas.ubc.ca/~rich/map.html).