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Table T1. Total carbonate content, mineralogy, and oxygen and carbon isotopic compositions of the carbonate fraction of diagenetic carbonate concretions, Sites U1325, U1326, U1327, U1328 and U1329. (See table notes.)
Core, section, interval (cm)
|
Depth (mbsf) |
Total carbonate (wt%) |
Aragonite (relative %) |
Calcite (relative %) |
Dolomite (relative %) |
Other carbonate (relative %) |
Calcite/Aragonite (‰ VPDB)
|
Dolomite (‰ VPDB)
|
Carbonate mixture (‰ VPDB)
|
δ18O
|
δ13C |
δ18O |
δ13C |
δ18O |
δ13C |
311- |
U1325B-16X-6, 28 |
126.93 |
29 |
|
41 |
59 |
|
|
|
|
|
4.71 |
–13.14 |
U1325C-6X-4, 47 |
221.98 |
65 |
|
8 |
92 |
|
|
|
|
|
4.65 |
–3.94 |
U1325C-11X-1, 119 |
258.29 |
69 |
|
93 |
7 |
|
5.01 |
–30.23 |
|
|
|
|
U1326C-2H-2, 92 |
6.32 |
64 |
|
23 |
77 |
|
|
|
|
|
6.74 |
–41.49 |
U1326C-9X-2, 92 |
71.52 |
80 |
|
1 |
99 |
|
|
|
7.73 |
–38.35 |
|
|
U1326D-5X-2, 5 |
118.75 |
67 |
|
4 |
96 |
|
|
|
7.28 |
–30.87 |
|
|
U1326D-9X-1, 0 |
155.90 |
16 |
|
100 |
|
|
0.88 |
1.05 |
|
|
|
|
U1326D-17X-3, 0 |
235.90 |
16 |
|
100 |
|
|
–1.27 |
3.15 |
|
|
|
|
U1326D-20X-3, 0 |
263.75 |
33 |
|
33 |
7 |
59* |
|
|
|
|
3.34 |
2.5 |
U1327C-10H-1, 96 |
75.56 |
24 |
|
73 |
27 |
|
|
|
|
|
5.4 |
–11.23 |
U1327C-16X-2, 120 |
126.40 |
11 |
|
22 |
6 |
72 |
|
|
|
|
2.10 |
17.78 |
U1327D-5X-1, 65 |
126.95 |
64 |
|
48 |
52 |
|
|
|
|
|
5.55 |
–2.57 |
U1327C-17X-CC, 13 |
136.77 |
67 |
|
83 |
17 |
|
|
|
|
|
4.28 |
–22.37 |
U1327C-18X-2, 0 |
142.35 |
67 |
|
88 |
12 |
|
4.43 |
–27.44 |
|
|
|
|
U1327C-18X-2, 130 |
143.65 |
76 |
|
3 |
97 |
|
|
|
6.54 |
2.04 |
|
|
U1327D-10P-1, 0 |
155.10 |
85 |
|
4 |
96 |
|
|
|
3.99 |
12.53 |
|
|
U1327D-10P-1, 78 |
155.88 |
64 |
|
31 |
69 |
|
|
|
5.89 |
6.27 |
|
|
U1327D-11X-1, 0 |
157.10 |
67 |
|
6 |
94 |
|
|
|
4.52 |
9.13 |
|
|
U1327C-20X-1, 0 |
160.80 |
49 |
|
98 |
2 |
|
5.33 |
–31.46 |
|
|
|
|
U1327C-20X-5, 6 |
166.14 |
9 |
|
75 |
17 |
7 |
|
|
3.31 |
2.77 |
|
|
U1327C-21X-7, 0 |
178.43 |
82 |
|
1 |
99 |
|
|
|
6.12 |
6.93 |
|
|
U1327D-16X-CC, 10 |
228.40 |
62 |
|
98 |
2 |
|
0.45 |
23.33 |
|
|
|
|
U1327D-16X-CC, 18 |
228.48 |
68 |
|
94 |
6 |
|
0.53 |
23.38 |
|
|
|
|
U1328B-1H-2, 8 |
1.58 |
30 |
|
82 |
18 |
|
4.83 |
–47.65 |
|
|
|
|
U1328D-1X-2, 40 |
1.90 |
31 |
|
91 |
9 |
|
4.04 |
–48.02 |
|
|
|
|
U1328D-1X-5, 9 |
6.09 |
43 |
|
97 |
3 |
|
4.42 |
–51.61 |
|
|
|
|
U1328D-1X-5, 10 |
6.10 |
50 |
|
97 |
3 |
|
4.7 |
–51.25 |
|
|
|
|
U1328B-3X-CC, 0 |
6.20 |
77 |
30 |
68 |
2 |
|
3.92 |
–30.62 |
|
|
|
|
U1328E-2X-1, 52 |
7.02 |
70 |
|
100 |
|
|
5.52 |
–44.06 |
|
|
|
|
U1328D-1X-5, 135 |
7.35 |
84 |
|
81 |
19 |
|
|
|
|
|
5.47 |
–32.74 |
U1328D-1X-CC, 0 |
8.10 |
40 |
|
27 |
73 |
|
|
|
|
|
3.59 |
–18.52 |
U1328D-2X-2, 30 |
9.43 |
68 |
|
30 |
70 |
|
|
|
|
|
4.98 |
–8.78 |
U1328D-2X-CC, 0 |
10.02 |
61 |
|
8 |
92 |
|
|
|
4.8 |
–30.15 |
|
|
U1328B-4P-1, 0 |
14.50 |
70 |
13 |
72 |
16 |
|
|
|
|
|
4.7 |
–29.26 |
U1328B-6X-1, 0 (A) |
18.40 |
71 |
8 |
82 |
10 |
|
|
|
|
|
4.52 |
–31.95 |
U1328B-6X-1, 0 (B) |
18.40 |
72 |
8 |
77 |
14 |
|
|
|
|
|
4.48 |
–29.52 |
U1328B-6X-1, 25 |
18.65 |
70 |
|
87 |
13 |
|
|
|
|
|
4.45 |
–28.59 |
U1328B-6X-1, 30 |
18.70 |
60 |
|
88 |
12 |
|
|
|
|
|
4.87 |
–27.47 |
U1328B-6X-1, 35 |
18.75 |
41 |
|
96 |
4 |
|
3.36 |
–27.38 |
|
|
|
|
U1328B-6X-1, 36 |
18.76 |
69 |
11 |
62 |
27 |
|
|
|
|
|
4.64 |
–28.05 |
U1328B-6X-1, 47 |
18.87 |
71 |
|
87 |
13 |
|
|
|
|
|
4.67 |
–27.01 |
U1328E-8X-1, 97 |
27.67 |
67 |
|
96 |
4 |
|
3.53 |
–47.21 |
|
|
|
|
U1328E-9X-1, 16 |
36.46 |
68 |
|
85 |
15 |
|
|
|
|
|
2.82 |
–21.51 |
U1328C-5P-1, 0 |
92.00 |
84 |
46 |
48 |
5 |
|
4.18 |
–30.96 |
|
|
|
|
U1328C-19X-4, 24 |
220.27 |
14 |
|
94 |
6 |
|
4.99 |
–34.22 |
|
|
|
|
U1328C-19X-4, 26 |
220.29 |
50 |
|
80 |
20 |
|
|
|
|
|
5.38 |
–35.24 |
U1328C-19X-4, 32 |
220.35 |
58 |
|
92 |
8 |
|
5.62 |
–41.47 |
|
|
|
|
U1328C-22X-CC, 12 |
253.70 |
79 |
|
|
100 |
|
|
|
7.42 |
2.13 |
|
|
U1328C-22X-CC, 20-21 |
253.78 |
36 |
|
13 |
87 |
|
|
|
4.66 |
11.3 |
|
|
U1328C-22X-CC, 20-22 |
253.78 |
71 |
|
2 |
98 |
|
|
|
4.73 |
11.25 |
|
|
U1328C-25X-2, 77 |
276.37 |
59 |
|
3 |
97 |
|
|
|
7.1 |
–13.4 |
|
|
U1329E-4H-5, 48 |
30.48 |
68 |
|
11 |
89 |
|
|
|
|
|
6.79 |
–19.51 |
U1329E-4H-5, 93 |
30.93 |
36 |
|
10 |
90 |
|
|
|
|
|
6.5 |
–16.47 |
U1329E-4H-5, 113 |
31.13 |
70 |
|
1 |
99 |
|
|
|
7.07 |
–15.63 |
|
|
U1329C-4H-3, 138 |
31.48 |
35 |
|
|
100 |
|
|
|
6.92 |
–22.55 |
|
|
U1329C-4H-3, 140 |
31.50 |
59 |
|
|
100 |
|
|
|
6.97 |
–21.3 |
|
|
U1329E-4H-6,72-74 |
32.22 |
43 |
|
5 |
95 |
|
|
|
6.95 |
–11.17 |
|
|
U1329C-5H-3, 129 |
40.89 |
15 |
|
100 |
|
|
4.35 |
–20.63 |
|
|
|
|
U1329C-5H-6, 61 |
44.71 |
26 |
|
30 |
70 |
|
|
|
|
|
5.6 |
6.82 |
U1329C-8H-2, 58 |
59.68 |
80 |
|
100 |
|
|
4.39 |
–31.67 |
|
|
|
|
U1329C-8H-2, 62 |
59.72 |
54 |
|
100 |
|
|
4.5 |
–28.34 |
|
|
|
|
U1329C-12H-2, 36 |
97.44 |
28 |
|
67 |
33 |
|
|
|
|
|
4.3 |
–1.66 |
U1329E-8Y-1, 35 |
104.35 |
64 |
|
|
100 |
|
|
|
6.93 |
–6.39 |
|
|
U1329C-17H-1, 0 |
135.60 |
68 |
|
90 |
10 |
|
4.6 |
–11.67 |
|
|
|
|
U1329C-18X-2, 65 |
142.35 |
76 |
|
45 |
55 |
|
6.58 |
20.04 |
|
|
|
|
U1329C-18X-5, 18 |
146.38 |
89 |
|
|
100 |
|
|
|
6.03 |
24.15 |
|
|
U1329C-18X-5, 27 |
146.47 |
81 |
|
|
100 |
|
|
|
6.14 |
21.18 |
|
|
U1329C-19X-1, 64 |
150.54 |
33 |
|
7 |
|
93 |
|
|
|
|
5.66 |
37.55 |
U1329C-20X-1, 70 |
160.30 |
78 |
|
100 |
|
|
3.88 |
–19.58 |
|
|
|
|
U1329C-20X-1, 89 |
160.49 |
80 |
|
100 |
|
|
3.62 |
8.48 |
|
|
|
|
U1329C-20X-1, 125 |
160.85 |
82 |
|
100 |
|
|
3.99 |
–21.28 |
|
|
|
|
U1329C-20X-3, 34 |
162.94 |
81 |
|
100 |
|
|
4.05 |
–21.26 |
|
|
|
|
U1329C-20X-5, 34 |
165.44 |
70 |
|
100 |
|
|
3.68 |
–30.69 |
|
|
|
|
U1329C-20X-CC, 19 |
166.00 |
83 |
|
|
100 |
|
|
|
4.28 |
33.46 |
|
|
U1329C-21X-2, 118 |
171.98 |
44 |
|
36 |
8 |
56 |
|
|
|
|
4.55 |
26.76 |
U1329C-21X-3, 61 |
172.91 |
53 |
|
100 |
|
|
3.37 |
–10.88 |
|
|
|
|
U1329C-21X-3, 129 |
173.59 |
16 |
|
38 |
|
62 |
|
|
|
|
4.71 |
29.34 |
U1329C-21X-3, 129 CARB |
173.59 |
64 |
|
18 |
|
82 |
|
|
|
|
4.99 |
30.81 |
U1329C-21X-6, 0 |
176.30 |
82 |
|
1 |
99 |
|
|
|
4.3 |
33.46 |
|
|
U1329C-22X-CC, 72 |
187.75 |
60 |
|
100 |
|
|
–8.68 |
3.5 |
|
|
|
|
Notes: VPDB = Vienna Peedee belemnite. CARB = small veinlet of carbonate. * = rhodochrosite + siderite. All other values in Other carbonate column are for siderite.
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