Table T3. Pore water chemical and sulfate oxygen isotope data, Site 1226.
Depth
(mbsf)
SO4
(mM)
Alkalinity
(mM)
NH4
(µM)
H2S
(mM)
18O-SO4
( V-SMOW)
1.3 30.1 2.9 51.7 ND 11.8
3.0 29.1 2.8 95.0 0.0 14.3
7.2
3.5 217.3 0.1 17.7
11.7 28.4 3.7
0.2 19.7
16.7 27.5 4.2
0.3 21.3
21.2 27.3 4.3
0.4 22.0
30.7 25.9 5.6 412.5 ND 24.6
35.7 25.1 5.8 433.5 0.3 25.2
45.2 24.5 6.3
0.7 26.3
54.7 24.6 6.8
0.6 27.0
68.7 24.0 6.8 570.2 0.5 27.6
73.7 24.4 6.7
0.7 27.9
83.2 23.1 6.8
0.7 27.9
92.7 22.7 6.7 621.6 0.6 27.7
102.2 22.7

ND 27.6
111.7 22.5 6.7 621.9 0.6 27.9
116.2 22.6 6.9 622.2 0.7
121.2
6.7 640.9 0.6 27.6
125.7 21.9 6.6
0.6
130.7 21.8 6.7
0.6
135.2 22.1 6.6
0.5
140.2
6.5 639.8 0.5 27.5
149.7 21.7 6.6 623.3 0.5
159.2 21.7 6.6
0.6 26.6
168.7
6.6 605.8 0.5
178.2 21.2 6.6 596.9 0.5 26.2
187.7 21.8 6.4
0.5 26.9
197.5 21.0 6.1 582.9 0.3
206.7 21.1 5.7 577.8 0.3 26.2
216.2 20.7 6.1
0.3 26.1
225.7 21.0 5.9 555.4 0.2 25.3
235.2 20.4 5.8 568.1 0.1 25.1
246.2 19.8 5.8
0.1 24.3
255.7
5.4 517.5 0.1
265.2
5.8 502.0 0.2 23.8
274.7 21.7 5.0
0.1 23.5
293.6 22.0
476.7
22.6
351.3

386.8
19.9
360.9 22.8 3.5

19.0
369.2 22.5 3.5

18.2
373.7
2.9

17.6
385.5 23.2 1.9

17.3
400.0
2.8

15.6
409.6 24.3 2.6

13.6
413.9
2.0

13.2
417.7 25.2


12.7

Notes: V-SMOW = Vienna-standard mean ocean water. ND = not determined.