Material

The coccolithophore community preserved in eight deep-sea cores taken from the TIP oceans, have been analysed (Beaufort et al., 2001) (Table 1; Fig. 2). A precise chronology was obtained by tuning oxygen isotope records from foraminifera in most of the cores to the SPECMAP stacked record (Imbrie et al., 1984) so that our sampling achieves a temporal resolution of 0.7-3 kyr. The eight records span the last 180 kyr.

Table 1: Position, depth and stratigraphie resolution achieved foraminifera species used for 818O analysis, reference for the stratigraphy

Core

Aeron.

Lat. N

(m)

Resol. (kyr)

Strati.

Ref.

TY93-929

T29

13°42

53°15E

2490

1.7

N. dutertrei

Rostek et al., 1997

MD90949

M49

2°05

76°07E

3700

2.8

G. rubber

Beaufort et al., 1999

MD90963

M63

5°O3

73°53E

2446

2.0

G. rubber

Bassinot et al., 1994

MD972141

M41

8°47

121°17E

3633

0.3

G. rubber

Oppo et al., 2003

MD971240

M40

2°2

141°0E

2347

1.9

G. rubber

de Garidel-Thoron et al., 2005

MD972138

M38

-1°25

146°14E

1912

1.7

G. rubber

Beaufort et al., 2001

W84-14GC

W84

0°57

138°57W

4287

2.5

C. wullerstortfi.

Jasper et al., 1994

RC13-110

R13

0°06

95°65W

3621

2.4

C. wullerstortfi.

Pisias and Mix, 1997

20°E 40°E 60°E 80°E 100°E 120°E 140°E 160°E 180° 160°W 140°W 120°W 100°W 80°W

20°E 40°E 60°E 80°E 100°E 120°E 140°E 160°E 180° 160°W 140°W 120°W 100°W 80°W

Figure 2: Location of the cores used in this study. The squares represent the area used in preparing the stack of primary production shown in Fig. 8. The numbers in the square are the total integrated primary production in the area (from Antoine et al., 1995).

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