of 6
Supplementary material
Carbon Cycling
in
Marine Particles Based on Inorganic and Organic
S
table
I
sotope
s
Sijia Dong
1,2*
,
Frank
J.
Pavia
3
,
Adam
V.
Subhas
4
,
Will Gray
5
, Jess
F.
Adkins
3
, Will
M.
Berelson
6
1. School of
Sus
tainable Energy and Resources
, Nanjing
University, China.
2.
Frontiers Science Center for Critical Earth Material Cycling,
Nanjing
University
, China.
3
. Division of Geological and Planetary Sciences, California Institute of Technology,
Pasadena, CA, USA.
4
. Department of Marine Chemistry and
Geo
chemistry,
W
oods Hole Oceanographic
Institution, Falmouth, MA, USA.
5
. Laboratoire des Sciences du Climat et del’Environnement (LSCE/IPSL), Université Paris
-
Saclay, Gif
-
sur
-
Yvette, France.
6
. Department of Earth Sciences, University of Southern
California, Los Angeles, CA, USA.
Contents o
f t
his file
Figure S1 to S4
Ta
ble S1
Figure
S1. PIC, POC concentrations and
13
C in the 4 different stations at Site CR.
Error bars were not shown for clarity reason. (a) PIC concentration in SSF; (b) PIC
concentration in LSF; (c) PIC
13
C in SSF; (d) PIC
13
C in LSF; (e) POC
concentration in SSF; (f) POC concentration in LSF; (g) POC
13
C in SSF; (h) POC
13
C in LSF.
Figure S2. PIC, POC concentrations and
13
C of duplicate pump filter samples (dup
-
1 and dup
-
2). The dashed lines were 1:1 lines.
Figure S3.
13
C of water column DIC at CR. CR1 had some sampling technical
issues and was therefore excluded. Samples were not collected at CR4 for
13
C
measurements.
Figure S4. Mass fluxes, PIC fluxes and POC fluxes collected by sediment traps at
100 and 200 m depth.
Table S1. Error bar analysis of the pump PIC, POC concentrations and
13
C based on duplicate measurements.
Sample ID
Concentration (
mol kg
-
1
)
13
C (‰)
PIC
POC
PIC
POC
Dup
-
1
Dup
-
2
Offset
Dup
-
1
Dup
-
2
Offset
Dup
-
1
Dup
-
2
Offset
Dup
-
1
Dup
-
2
Offset
CR2
-
PC1
-
P7
0.003
0.005
0.002
0.14
0.25
0.11
0.2
0.4
0.3
-
21.6
-
21.4
0.2
CR2
-
PC2
-
P7
0.010
0.010
0.0002
0.25
0.25
0.002
0.3
0.6
0.3
-
22.8
-
22.6
0.2
CR3
-
PC2
-
P7
0.013
0.012
0.001
0.20
0.21
0.005
-
0.4
-
0.4
0.03
-
22.2
-
22.0
0.2
CR3
-
PC1
-
P7
0.010
0.008
0.002
0.16
0.12
0.04
-
0.5
-
0.5
0.03
-
22.8
-
22.7
0.2
CR5
-
PC1
-
P6
0.024
0.024
0.0003
0.49
0.38
0.11
-
0.01
-
0.2
0.2
-
22.9
-
23.0
0.1
CR5
-
PC3
-
P6
0.007
0.007
0.001
0.19
0.18
0.01
-
0.9
-
0.2
0.6
-
24.8
-
25.3
0.5
Average of
offset
0.001
0.05
0.2
0.2