Table
1. Correlation coefficients of color variables with each other and with
shipboard measurements of carbonate and organic carbon content and of
semiquantitative estimates of clay and biogenic silica content in smear slides.
Site
Color
a*
b*
CaCO3
Corg
Clay
BSi
1010
L*
-0.22
0.09
0.83
-0.41
-0.54
-0.09
a*
0.56
-0.04
0.26
0.22
-0.19
b*
0.00
0.33
-0.37
0.31
1011
L*
-0.14
0.43
0.73
-0.65
-0.29
-0.21
a*
0.36
0.18
0.52
0.08
0.03
b*
0.66
-0.04
-0.30
0.16
1012
L*
-0.25
0.75
0.65
-0.80
-0.75
0.00
a*
0.07
0.24
0.40
0.24
0.13
b*
0.79
-0.42
-0.56
0.05
1013
L*
-0.70
0.95
0.72
-0.80
-0.61
-0.12
a*
-0.66
-0.31
0.66
0.22
0.03
b*
0.81
-0.74
-0.58
-0.17
1014
L*
-0.86
0.94
0.62
-0.77
-0.65
-0.20
a*
-0.77
-0.11
0.58
0.44
0.24
b*
0.69
-0.69
-0.63
-0.20
1016
L*
-0.79
0.38
0.89
-0.48
-0.27
-0.54
a*
-0.12
-0.58
0.41
0.01
0.55
0.53
-0.02
-0.47
-0.04
1017
L*
-0.90
0.80
0.24
-0.72
-0.06
-0.27
a*
-0.70
-0.11
0.71
0.07
0.24
b*
0.37
-0.54
-0.03
-0.18
1018
L*
-0.36
0.34
0.09
-0.37
0.33
-0.60
a*
0.25
-0.28
0.54
-0.26
0.40
b*
0.24
0.19
-0.32
0.24
1019
L*
0.70
0.34
0.50
-0.49
0.21
-0.18
a*
-0.28
-0.21
0.27
-0.13
0.09
b*
0.32
0.42
-0.16
0.38
1020
L*
-0.31
0.61
0.75
-0.54
-0.61
-0.22
a*
0.02
-0.06
0.00
0.16
0.06
b*
0.54
0.14
-0.51
0.13
1022
L*
-0.54
0.58
0.88
-0.55
0.02
-0.14
a*
-0.37
0.10
0.33
-0.25
-0.02
b*
0.36
0.12
-0.10
0.18
Notes: Biogenic silica (BSi) comprises the sum of all siliceous microfossils. Coefficients of 0.5 or higher are in boldface type to illustrate good correlation; given the number of data points, values of over 0.15 or 0.20 are significant for most sites.