Table T2. Grain size, opal, major element oxide, and trace element data for Site 1139 Unit II sediments.
Hole:
1139A-
1139A-
1139A-
1139A-
1139A-
*1139A-
*1139A-
*1139A-
*1139A-
*1139A-
Core, section:
21R-2
21R-5
27R-4
38R-6
38R-7
23R-5
25R-1
25R-4
27R-3
30R-6
Interval (cm):
90-92
127-129
123-125
35-37
7-9
75-77
123-125
139-141
19-21
35-37
Depth (mbsf):
193.7
198.57
254.83
361.48
362.7
217.25
231.03
235.69
252.29
285.75
CaCO3 (wt%) 27.21 67.91 13.27 41.09 76.01 79.04 53.55 25.75 51.71 22.67
OC (wt%) — — 0.13 — — — — 0.095 — 0.076
Md (mm) — — — — — 2.3 6 7.6 5.6 6.5
Opal (wt%) — — — — — 2.26 1.48 3.82 2.13 4.11
Major element oxides (wt%):









SiO2 39.80 15.26 44.44 29.37 10.80 54.38 52.31 51.28 52.87 52.02
TiO2 1.17 0.70 2.29 1.60 0.56 3.04 3.44 3.52 3.40 3.29
Al2O3 10.99 4.35 12.40 7.24 2.75 14.31 14.66 15.81 15.95 15.18
Fe2O3*# 6.37 2.60 9.96 6.29 1.99 10.54 11.82 11.19 10.32 11.63
MnO 0.05 0.05 0.06 0.05 0.07 0.06 0.06 0.07 0.07 0.08
MgO 2.15 1.19 3.17 4.45 1.21 2.35 3.21 3.65 2.35 3.14
CaO 16.62 38.54 10.44 25.67 43.39 2.24 3.34 4.07 3.23 6.12
Na2O 3.45 1.89 3.34 2.19 0.86 3.81 4.12 3.92 4.03 3.55
K2O 2.78 0.81 2.90 0.98 0.55 3.46 2.84 2.68 3.64 2.53
P2O5 0.25 0.22 0.49 0.28 0.13 0.42 0.43 0.42 0.46 0.37
LOI** 15.87 33.07 9.83 20.73 35.87 3.93 3.21 2.58 2.83 1.90
Total 99.49 98.67 99.32 98.86 98.17 98.53 99.43 99.19 99.14 99.79
Trace elements (ppm):









Sn 4.2 <5.5 <6.7 <5.5 <4.2
15.5 <6.4 <7.9 <5.9
Nb 69.7 22.1 43.3 18.3 7.4
56 61.4 65.1 50.1
Zr 334.6 102.7 263.6 143.3 51.5
321.9 356.2 347 294.4
Y 17.3 12.2 21.5 12.3 8.7
18.8 15.6 17.8 15.7
Sr 807.7 1328.6 693.9 1106 1445.1
553.2 561.3 633.9 701.9
Rb 64.6 13.3 58.1 14.6 7.3
46.8 42.3 52.5 43.7
Pb 6.3 <5.9 <10.6 <5.6 <6.0
12.8 6.7 5.9 13.1
Ga 15.3 6.5 18.8 9.7 3.4
26.4 26.2 24.8 23.8
Zn 88.4 37.8 91.5 55.6 12.5
154.5 140.8 455.6 150.5
Ni 38.7 19.6 52.7 82.3 19.8
67 48.7 28.8 43.9
V 70 39.4 164.3 100.2 38.2
185.3 166.9 151.6 193.6
Cr 23 <20.3 49.3 111.7 <25.0
155.5 123.1 117.2 59.5
Ba 945.8 862.1 834.6 385.1 347.5
1631.1 1228.1 1450.2 907.1
Co 14.9 6.7 21.5 22.2 5.3
73.3 26.5 14.4 29.8

Notes: * = treated sample (carbonate and opal removed). Md = median grain size diameter. *# = total Fe as Fe2O3. ** = loss on ignition at 1025°C for 4 hr.