Figure F2. A. Vertical distribution of delta13C of dissolved inorganic carbon (Kroopnick, 1985) in the world's oceans (after Charles and Fairbanks, 1992). B. Positions of Leg 177 sites relative to the distribution of delta13C in the South Atlantic Ocean. Several Leg 177 studies have used benthic delta13C to reconstruct changes in deepwater circulation. Note the tongue of NADW with high delta13C values as it penetrates into the South Atlantic and inserts itself into Antarctic circumpolar flow. CDW = Circumpolar Deep Water, NADW = North Atlantic Deep Water (after Ninnemann and Charles, 2002).

Figure F2. A. Vertical distribution of

¹³C of dissolved inorganic carbon (Kroopnick, 1985) in the world's oceans (after Charles and Fairbanks, 1992). B. Positions of Leg 177 sites relative to the distribution of

¹³C in the South Atlantic Ocean. Several Leg 177 studies have used benthic

¹³C to reconstruct changes in deepwater circulation. Note the tongue of NADW with high

¹³C values as it penetrates into the South Atlantic and inserts itself into Antarctic circumpolar flow. CDW = Circumpolar Deep Water, NADW = North Atlantic Deep Water (after Ninnemann and Charles, 2002).