Effect of Sea-Level Change on Deep-Sea Sedimentary Records in the Northeastern South China Sea over the past 42 kyr
Table 1
Average (avg) and standard deviation (std) of geochemical parameters in different intervals of the core 973-4. Major elements are given in weight percent (%) while trace elements are in μg/g.
Parameters
Unit 4 (70-450 cm)
Unit 3 (450-610 cm)
Unit 2 (610-980 cm)
Unit 1 (980-1280 cm)
Avg
Std
Avg
Std
Avg
Std
Avg
Std
Major elements (%)
Al
7.13
0.38
6.10
0.26
7.59
0.62
7.37
0.21
Ca
2.49
0.43
7.64
1.38
2.64
0.16
2.59
0.08
Fe
3.82
0.14
3.13
0.07
4.06
0.20
4.06
0.09
K
2.26
0.05
1.90
0.13
2.54
0.21
2.43
0.04
Mg
1.23
0.09
1.21
0.06
1.64
0.14
1.52
0.06
Mn
0.04
0.00
0.03
0.00
0.06
0.01
0.07
0.00
Na
1.78
0.11
1.53
0.07
1.57
0.10
1.54
0.06
P
0.06
0.00
0.05
0.00
0.06
0.01
0.07
0.01
Ti
0.46
0.01
0.36
0.02
0.46
0.03
0.45
0.01
Trace elements (μg/g)
V
123.57
6.24
102.46
6.15
130.03
8.30
129.59
4.91
Cr
71.04
4.58
56.95
2.70
79.02
4.68
79.58
2.51
Rb
79.32
16.14
89.03
4.87
99.42
22.08
87.68
4.62
Sr
162.70
25.70
320.33
50.14
154.37
13.87
141.25
7.23
Grain size(μm)
7.07
0.75
7.95
0.38
6.45
0.31
7.77
0.76
δ13CTOC(‰)
-25.08
0.88
-24.11
0.76
-25.18
0.49
-25.36
1.04
TOC(%)
0.65
0.25
0.74
0.13
0.88
0.16
0.64
0.19
CaCO3(%)
6.82
3.00
21.32
4.64
4.47
1.33
7.50
1.72
δ15N(‰)
4.29
0.79
4.38
1.21
4.75
0.96
4.77
0.91
TN(%)
0.09
0.13
0.07
0.08
0.08
0.10
0.06
0.07
Data sources: grain size data and CaCO3 content [31], δ13CTOC and TOC data [53], and other data (this study).
