I' 121
3
®
- m 0.5
C
Q.
0
~
- U
0
C")
.... <0 -0.5
0
0
- m c Q. 0.5
0
~
- U
C")
0
....
<0
0
Stable Carbon Isotopes in Benthic Foraminifera
247
1'1 ' 1 '1: J' 1, 1
I '
1 ' 1 : J' 1, 1
100
200
100
200
age (ka)
Chlorophyll a
(mg/m3)
D >1.0
o >0.4
D >0.25
D <0.25
Longhurst et al. 1992
I
• 1 ' 0 I II
1112
~ 1105
~
300
400
>:
0.2 N
E
-- ~
Diff. artoc 1105 -11 12
0.1 U
0
IQ)
0 -
CU
Dill. Ii 13C 11 05 - 1112
~
U
U
CU
300
400
Fig. 11. (a) Map of chlorophyll-a distribution in the equatorial Atlantic in relation to the positions of cores GeoB
1105 and 1112. (b) ol3C-records of both cores plotted versus time. (e) Differences of accumulation rates of total
organic carbon (Diff.artoc) between cores GeoB 1105 and 1112 and of Ol3C values CDiff. OI3C), respectively, plotted
versus time.
3
®
- m 0.5
C
Q.
0
~
- U
0
C")
.... <0 -0.5
0
0
- m c Q. 0.5
0
~
- U
C")
0
....
<0
0
Stable Carbon Isotopes in Benthic Foraminifera
247
1'1 ' 1 '1: J' 1, 1
I '
1 ' 1 : J' 1, 1
100
200
100
200
age (ka)
Chlorophyll a
(mg/m3)
D >1.0
o >0.4
D >0.25
D <0.25
Longhurst et al. 1992
I
• 1 ' 0 I II
1112
~ 1105
~
300
400
>:
0.2 N
E
-- ~
Diff. artoc 1105 -11 12
0.1 U
0
IQ)
0 -
CU
Dill. Ii 13C 11 05 - 1112
~
U
U
CU
300
400
Fig. 11. (a) Map of chlorophyll-a distribution in the equatorial Atlantic in relation to the positions of cores GeoB
1105 and 1112. (b) ol3C-records of both cores plotted versus time. (e) Differences of accumulation rates of total
organic carbon (Diff.artoc) between cores GeoB 1105 and 1112 and of Ol3C values CDiff. OI3C), respectively, plotted
versus time.