Coccolithophores as Indicators of Ocean Water Masses
137
Emiliania huxle i
50
Erriliania hUYleyi
A
r = -0.62
B
i?
r = -0.70
G
40
0' &:0 0
6
o oOJ
30
..
4
20
:
10
Ge h roea sa oceanica
60
Q,
r = 0.40
40
•
..
20
2
Gephyrocapsa muellerae
30
Q,plryrocapsa mlElierae
r = 0,04
r= -0.07
•
.
20
.oo
.~
• .
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......... . .
,. " .
10
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.:.. :: tc ..''' .
C.... . .. ,. ...
"
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0
"
:§
E
Gephvrocaosa ericsonii
Q,plryrocapsa ericsonii
'6
"0 30
"
~
r= 0.01
u
r= 0.04
U
'"
0
--2D
u
20
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,
0
.
0
.
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u
10
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Q,
u
15
Gephyrocapsa spp.
-<
u
100
0
•• r = 0.45
~
r = D.77
U
0
80
10
~
60
. ... : ..
... ,. W.,·
40
o~rF~.
•
20
Ca/cidiscus ieptoporus
40
Ctlcidiscus leproporus
r= -0.34
30
r = -0.41
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. . ..
20
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e.- . ,. .
10
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0
1.0
Umbilicos haera sibo ae
r= -0.35
r= -0.41
0.8
0.6
4
0.4
0.2
0.0
0
100
200
300
400
100
200
300
400
K37(~g!g TOC)
K 37(~glg TOC)
Fig. 14. Plots of normalized alkenone concentrations (K37 flg/g TOC) versus (a) absolute numbers (x 10'/g sediment) of most abundant coccoliths and (b) relative frequencies of most abundant coccoliths in core GeoB 1028.
Black dots indicate samples that are younger than 58 ka before present (the dominance interval of E. huxleyi),
samples from older sediments are shown by open triangles.