Table
2. Mineralogic, elemental, and stable isotopic composition of bulk
carbonate sediments, Site 1008.
Core,
section, interval (cm)
Depth (mbsf)
Shipboard
lithology
Degree of
lithification
Aragonite
(wt%)
HMC (wt%)
LMC (wt%)
Dolomite
(wt%)
mol% Mg
HMC
(XRD)
mol% Mg
Dolomite
(XRD)
CaCO3
(mol%)
MgCO3
(mol%)
Mg
(ppm)
Na
(ppm)
Sr
(ppm)
13C
PDB
18O
PDB
166-1008A-
1H-1,
26-28
0.26
ul
pel foram wack
62.6
27.7
9.8
0
11.6
93.13
4.5
10,999
3320
7,990
3.90
-0.35
1H-2,
29-31
1.79
ul
pel foram wack
68.2
24.2
7.6
0
12.5
93.71
3.6
8,761
3719
9,281
4.16
-0.25
1H-3,
29-31
3.29
ul
pel foram wack
80.4
13.3
6.3
0
12.4
93.67
2.8
6,848
4713
12,560
4.51
-0.26
1H-4,
29-31
4.79
ul
mud-wack
88.8
7.2
4.0
0
11.5
94.59
1.5
3,651
6027
10,949
4.88
-0.24
1H-5,
43-45
6.43
pl
floatstone
LITH
6.9
83.5
9.6
0
12.7
86.88
12.2
30,116
1718
1,828
2.98
2.86
2H-1,
29-31
6.89
pl
floatsone w/nodules
PL
19.1
64.0
16.9
0
12.6
89.77
9.0
22,131
2094
2,924
3.21
2.12
2H-2,
29-31
8.39
ul
pel wackestone
84.1
10.0
5.9
0
11.5
95.16
1.7
4,021
4695
9,854
4.34
-0.18
2H-3,
29-31
9.89
ul
mud-wackestone
77.8
15.5
6.7
0
12.4
94.51
2.8
6,679
3975
8,750
4.32
-0.02
2H-3,
98-101
10.58
pl
packstone w/hard layers
LITH
3.9
87.7
8.4
0
13.1
87.33
11.5
28,304
2375
1,667
3.52
3.62
2H-4,
29-31
11.39
pl
floatstone w/hard layers
PL
4.3
73.9
21.8
0
12.5
86.40
12.5
30,851
2119
1,952
3.08
3.27
2H-5,
29-31
12.89
ul
foram pel wackestone
52.4
33.6
14.0
0
11.9
92.16
5.3
12,849
4191
6,580
3.89
0.44
2H-6,
29-31
14.39
ul
foram wackestone
69.3
17.9
12.8
0
12.0
94.39
3.1
7,636
3348
8,806
4.26
0.29
2H-7,
29-31
15.89
ul
pel wackestone
66.7
19.6
13.7
0
11.8
94.24
3.2
7,833
3548
8,642
4.27
0.22
3H-1,
29-31
16.39
ul
foram wackestone
74.1
12.7
13.2
0
12.1
95.07
2.6
6,292
2819
9,639
4.37
0.34
3H-2,
29-31
17.89
ul
pteropod for wack-pack
62.1
23.8
14.1
0
12.2
93.01
4.1
9,999
4401
8,390
3.95
0.28
3H-3,
29-31
19.39
ul
foram, pel wackestone
82.3
7.9
9.8
0
12.0
95.60
1.6
3,878
3862
9,640
4.42
0.14
3H-3,
119-121
20.29
pl
bio pack-wack
PL
12.3
59.2
28.5
0
12.3
97.58
1.4
3,308
1866
2,142
2.48
2.27
3H-4,
29-31
20.89
ul
bio pack-wack
51.7
26.9
21.4
0
11.9
93.99
4.4
10,668
2193
5,981
3.56
0.70
3H-5,
29-31
22.39
ul
for wack w/nannos
51.4
29.4
19.2
0
11.8
93.63
4.6
11,199
2500
6,074
3.22
-0.08
3H-6,
29-31
23.89
ul
foram wack
67.5
21.3
11.2
0
12.3
94.29
3.2
7,745
3357
9,265
3.77
-0.39
3H-7,
29-31
25.39
ul
pel wack
71.6
14.4
14.0
0
11.5
95.15
2.6
6,329
2834
8,795
3.65
-0.19
4H-1,
29-31
25.89
ul
pel wack
78.3
8.9
12.8
0
11.7
95.95
1.8
4,237
2901
9,005
4.03
0.07
4H-1,
138-140
26.98
nodule
w/black grains
PL
23.8
25.0
51.2
0
12.1
93.86
5.1
12,338
1681
3,147
2.06
1.36
4H-2,
29-31
27.39
nanno
ooze w/forams
43.4
31.6
25.0
0
12.2
92.74
5.4
13,155
2607
6,472
3.42
0.50
4H-3,
29-31
28.89
nanno
ooze
43.0
36.5
20.5
0
11.9
92.36
5.9
14,370
2559
5,701
3.70
-0.14
4H-4,
29-31
30.39
nanno
ooze
48.7
32.8
18.5
0
12.5
92.48
5.7
13,896
2620
6,067
3.73
-0.16
4H-5,
29-31
31.89
nanno
ooze
51.8
32.6
15.6
0
12.7
92.90
5.2
12,707
2649
6,489
3.68
-0.10
4H-6,
29-31
33.39
nanno
ooze
64.2
19.5
16.3
0
12.0
94.57
3.4
8,136
2612
8,216
4.03
0.01
4H-7,
29-31
34.89
nanno
ooze
79.2
9.7
11.1
0
12.0
95.39
2.1
5,125
3011
10,317
4.40
-0.14
5H-1,
29-31
35.39
ul
pel wack
83.7
7.3
9.0
0
12.0
96.01
1.5
3,671
2950
10,278
4.60
0.33
5H-2,
29-31
36.89
ul
pel wack
80.2
9.7
10.1
0
11.9
95.75
2.0
4,780
2710
9,551
4.68
0.33
5H-3,
29-31
38.39
nanno
ooze w/nodules
PL
24.6
50.5
24.9
0
12.4
91.47
7.4
18,160
1794
3,060
2.87
2.03
6H-1,
29-31
40.49
ul
foram wack
37.7
23.9
38.4
0
12.4
93.89
4.8
11,640
1910
4,457
2.87
1.06
6H-2,
29-31
41.99
ul
pel wack
9.6
54.6
35.8
0
12.6
90.72
8.5
20,907
1291
1,901
2.59
2.52
6H-2,
74-76
42.44
ul
pel wack
PL
9.7
57.9
32.4
0
12.5
89.45
9.6
23,549
1722
2,158
3.07
2.75
6H-3,
29-31
43.49
ul
pel mud-wack
74.6
9.8
15.6
0
11.7
95.25
2.1
5,199
3538
9,232
4.65
0.78
6H-4,
29-31
44.99
ul-pl
pel wack
57.3
17.3
25.4
0
12.8
94.20
4.0
9,703
2287
7,133
4.11
1.09
6H-5,
29-31
46.49
ul
pel wack
68.5
8.0
23.5
0
12.2
95.83
2.2
5,438
2305
8,104
4.52
0.69
6H-6,
29-31
47.99
ul
pel wack
83.7
4.0
12.3
0
12.7
96.49
1.3
3,168
2411
9,981
4.88
0.33
6H-7,
29-31
49.49
ul
pel wack-mud
77.2
3.6
19.2
0
11.9
95.82
1.7
4,130
2986
10,208
4.74
0.16
7H-1,
29-31
49.99
ul
pel wack-mud
77.5
5.0
17.5
0
13.0
95.93
1.7
4,152
2847
9,673
4.72
0.19
7H-2,
29-31
51.49
ul
pel wack-mud
80.6
6.6
12.8
0
11.0
94.99
2.2
5,376
3174
12,240
5.05
0.13
7H-3,
29-31
52.99
ul
pel wack
77.1
4.7
17.8
0.5
11.7
95.80
1.8
4,446
2861
9,740
4.63
0.25
7H-4,
29-31
54.49
ul
pel mud-wack
81.0
6.1
12.6
0.3
12.4
95.71
1.9
4,693
2965
9,226
4.63
0.17
7H-5,
29-31
55.99
ul
pel mud-wack
77.7
4.6
17.1
0.6
12.4
95.59
2.0
4,910
3079
9,048
4.59
0.30
7H-5,
112-114
56.82
nanno
ooze w/forams
PL
15.0
12.5
72.5
0
11.1
94.98
4.0
9,806
1655
2,524
1.82
1.43
7H-6,
6-8
57.26
nanno
w/forams, nodules
LITH
15.8
25.7
58.5
0
11.7
93.18
5.9
14,476
1432
2,512
2.26
1.53
7H-6,
29-31
57.49
nanno
w/forams
23.3
21.4
55.3
0
11.3
94.27
4.6
11,306
1668
3,291
2.43
1.17
7H-7,
22-24
58.92
ul
pel wack-mud
59.6
5.8
33.1
1.5
11.8
40.5
94.63
3.1
7,606
3160
7,521
4.29
0.86
8H-1,
29-31
59.49
ul
pel mud-wack
62.9
5.2
30.7
1.2
10.7
41.4
95.35
2.8
6,687
2383
7,481
4.19
0.49
8H-2,
29-31
60.99
ul
pel wack
54.7
10.0
33.7
1.6
5.7
41
95.30
3.0
7,196
2273
6,551
3.80
0.57
8H-2,
137-139
62.07
nodule
LITH
24.5
26.9
46.6
2
11.3
41.7
92.28
6.8
16,538
1257
3,703
3.20
1.76
8H-3,
29-31
62.49
ul-pl
floatstone
36.7
20.0
41.6
1.7
11.9
40.7
93.35
5.2
12,719
2060
4,850
3.63
1.13
8H-4,
29-31
63.99
ul
pel wack
PL
40.9
23.9
35.2
0
11.6
93.50
4.8
11,659
2608
5,197
3.57
0.60
8H-5,
29-31
65.49
ul
pel wack-pack
69.8
10.4
19.1
0.7
12.4
43.9
95.20
3.0
7,236
1981
8,393
4.62
0.78
8H-5,
121-123
66.41
foram
wack
LITH
16.9
56.8
26.3
0
13.0
88.80
10.3
25,252
1464
2,828
3.47
2.68
8H-6,
29-31
66.99
ul
pel wack
37.8
17.2
45.0
0
11.2
93.68
4.4
10,651
2824
6,292
3.53
1.01
8H-7,
29-31
68.26
ul
pel wack
37.4
25.4
37.2
0
11.5
93.40
5.0
12,262
2339
4,969
3.64
0.97
8H-CC,
29-31
68.88
ul
pel wack
41.4
24.0
34.8
0
11.6
93.39
5.0
12,192
2320
5,303
3.54
0.66
9H-1,
29-31
68.99
ul
pel wack-biowack
63.6
14.5
19.4
2.5
12.2
40.6
93.34
4.6
11,123
2668
8,159
4.13
0.93
9H-2,
29-31
70.49
ul
pel wack
43.6
23.4
33.0
0
11.5
93.39
4.8
11,678
2736
5,519
3.66
0.78
9H-3,
29-31
71.99
ul
pel mud-wack
36.1
21.4
42.5
0
11.8
93.71
4.9
11,864
1986
4,998
3.54
0.84
9H-4,
29-31
73.42
ul
pel mud-wack
55.1
15.3
28.9
0.7
11.8
40.9
90.85
7.5
18,254
2083
6,968
3.96
0.52
9H-5,
29-31
74.99
ul
pel mud-wack
60.7
10.7
28.6
0
11.5
95.25
3.0
7,242
2045
7,680
3.81
0.51
9H-6,
29-31
76.49
ul
pel mud-wack
65.6
9.2
23.6
1.6
11.7
40.4
95.01
3.2
7,739
1892
8,580
4.51
0.93
9H-6,
123-125
77.43
lithoclast
wack
LITH
5.7
65.1
29.2
0
12.9
88.04
11.2
27,619
1353
1,713
3.33
2.89
10H-1,
25-27
78.45
ul
bio-floatstone
31.9
18.0
50.1
0
11.7
94.18
4.6
11,279
1568
4,520
3.28
1.26
11X-1,
28-30
78.98
ul
litho float (debris flow)
37.4
28.6
32.7
1.3
12.4
40.9
92.52
6.1
14,949
1789
5,191
3.53
1.32
11X-2,
28-30
80.48
ul
lithoclast floatstone
53.2
17.5
27.7
1.6
12.6
41.4
94.05
4.3
10,433
1898
7,394
3.98
0.80
15X-1,
28-30
116.38
ul
biowack
64.4
13.5
22.1
0
12.3
94.72
3.3
8,067
2209
8,708
4.26
0.66
15X-2,
29-31
117.89
ul
pel wack
69.5
8.1
22.4
0
11.2
95.68
2.3
5,672
2059
9,411
4.78
0.94
15X-3,
29-31
119.39
ul
pel wack
77.6
3.7
18.7
0
12.2
96.08
1.6
3,918
2447
10,732
4.60
0.94
15X-4,
29-31
120.89
ul
pel wack
79.2
4.9
15.9
0
12.1
96.04
1.7
4,172
2254
10,926
4.68
0.97
15X-5,
29-31
122.39
ul
pel wack
81.2
5.1
13.7
0
11.9
96.17
1.6
3,799
2241
11,169
4.83
0.82
15X-5,
49-52
122.59
biopack
LITH
25.0
0.0
75.0
0
97.41
1.6
3,995
1185
3,772
2.60
1.30
Notes: HMC = high-Mg calcite, LMC = low-Mg calcite, XRD = X-ray diffraction, PDB = Peedee belemnite standard. Shipboard lithologic descriptions are abbreviations of the Dunham classification (Eberli, Swart, Malone, et al., 1997): ul = unlithified, pl = partially lithified, pel = peloidal, bio = bioclastic, wack = wackestone, pack = packstone, mud = mudstone; forams = foraminifers, nannos = nannofossils. Degree of lithification column abbreviations: PL = partially lithified, LITH = lithified, unmarked areas = unlithified. See text for method of lithification classification.
This table also appears in ASCII format.