Biogenic Barium as a Proxy for Paleoproductivity
/
I
o
00
30'
BrozJl ~
8 11(n
20'
SubtropicaJ
o
o
(X)o
080
10'
Gyre
C) 000 U'
00
ooc ~o
Wlddetl s..
0
0 0
0'
353
cO'
- 60'
Fig. 5. Concentrations of biogenic barium (ppm) in surface sediments of the South Atlantic redrawn after Niimberg
(\995), (detrital correction factor 0.004 N of300S and 0.0067 S of 30° S). Large-scale, upper-level geostrophic currents and fronts were adapted from Hellmeret al. (1985), Whitworth and Nowlin (1987) and Peterson and Stramma
(1991).
/
I
o
00
30'
BrozJl ~
8 11(n
20'
SubtropicaJ
o
o
(X)o
080
10'
Gyre
C) 000 U'
00
ooc ~o
Wlddetl s..
0
0 0
0'
353
cO'
- 60'
Fig. 5. Concentrations of biogenic barium (ppm) in surface sediments of the South Atlantic redrawn after Niimberg
(\995), (detrital correction factor 0.004 N of300S and 0.0067 S of 30° S). Large-scale, upper-level geostrophic currents and fronts were adapted from Hellmeret al. (1985), Whitworth and Nowlin (1987) and Peterson and Stramma
(1991).