Table T3. GRA bulk density and porosity data, grain size, clay and bulk mineralogy, and Fe(ferric) and phosphorus sedimentary phases of selected samples.

Core, section,
interval (cm)
Depth
Age
(Ma)
Thickness
(cm)
Color
GRA
(g/cm3)
Porosity
(%)
<8 µm
(%)
>8 µm
(%)
Clay mineralogy
2-16 µm (%)
Clay mineralogy
<2 µm (%)
(mbsf)
(mcd)
Micas
Kaolinite
Chlorite
Micas
Kaolinite
Chlorite
Smectite
184-1147A-















2H-6, 124-126 14.14 15.59

Normal 1.453 74.3 92.5 7.5 50.9 4.7 44.4 40.5 5.5 27.5 26.6
2H-6, 118-120 14.08 15.53 0.17 1.86 Green 1.464 73.7 96.4 3.6 48.5 7.9 43.7 37.6 11.9 20.1 30.5
3H-6, 63-64 23.03 24.78

Normal 1.531 70.1 89.3 10.7 55.5 4.7 39.8 58.6 10.4 24.3 6.6
3H-6, 60-61 23.06 24.81 0.26 1.53 Green 1.483 72.7 86.0 14.0 51.2 6.3 42.5 49.4 10.0 24.1 16.5
4H-5, 75-76 31.15 34.1

Normal 1.476 73.1 95.0 5.0 57.0 4.3 38.7 63.2 11.7 25.1 miss
4H-5, 77-78 31.17 34.12 0.37 1.65 Green 1.459 74.0 90.9 9.1 58.0 4.4 37.6 59.3 10.5 28.9 1.4
5H-4, 78-79 39.18 42.08

Normal 1.483 72.7 88.9 11.2 54.3 8.5 37.2 65.8 9.8 23.3 1.1
5H-4, 76-77 39.16 42.06 0.50 0.88 Green 1.481 72.8 12.3 87.7 55.9 6.1 38.0 66.4 10.7 20.6 2.3
6H-3, 45-46 46.85 51.1

Normal 1.587 67.0 93.5 6.5 54.6 5.4 40.0 51.3 11.0 19.0 18.6
6H-3, 50-51 46.9 51.15 0.65 1.24 Green 1.578 67.5 82.1 17.9 53.4 5.9 40.8 34.1 9.7 30.8 25.4
2H-6, 26-28 8.56 13.41

Normal 1.487 72.5 92.6 7.4 51.1 2.3 46.6 46.9 11.4 21.2 20.6
2H-6, 31-33 8.61 13.46 0.19 1.74 Green 1.476 73.1 90.9 9.1 49.4 2.2 48.4 43.9 4.1 32.3 19.8
3H-6, 25-27 17.98 22.83

Normal 1.451 74.5 94.8 5.2 50.9 6.8 42.2 49.3 13.2 24.3 13.1
3H-6, 28-30 18.01 22.86 0.33 2.43 Green 1.434 75.5 91.6 8.4 50.1 7.2 42.8 50.0 6.0 22.8 21.2
4H-2, 22-24 21.52 26.37

Normal 1.474 73.2 92.4 7.6 49.1 4.5 46.4 miss miss miss miss
4H-2, 27-29 21.57 26.42 0.38 2.67 Green 1.434 75.5 83.9 16.1 47.9 5.8 46.3 48.2 8.4 24.0 19.3
5H-4, 52-54 34.32 39.17

Normal 1.516 70.8 45.9 54.1 53.3 8.7 38.0 48.1 5.7 22.1 24.1
5H-4, 49-51 34.29 39.14 0.56 2.13 Green 1.527 70.2 89.3 10.7 52.4 7.2 40.5 47.3 7.4 23.0 22.3
6H-3, 119-121 42.99 48.79

Normal 1.599 66.0 75.8 24.2 52.4 11.3 36.3 40.6 9.9 20.9 28.6
6H-3, 121-123 43.01 48.81 0.70 1.71 Green 1.571 67.6 75.5 24.5 54.5 10.8 34.7 46.1 6.7 21.5 25.8
7H-2, 137-139 51.17 58.07

Normal 1.61 65.4 90.8 9.2 53.9 8.3 37.8 44.1 10.1 20.9 24.9
7H-2, 145-147 51.25 58.15 0.83 3.08 Green 1.576 67.4 89.1 10.9 53.7 7.8 38.6 58.0 13.6 23.8 4.6



Average: Green 1.50 71.82 80.7 19.3 52.3 6.5 41.2 49.1 9.0 24.7 18.4





Normal 1.52 70.88 84.9 15.1 53.0 6.7 40.3 49.5 9.7 22.6 18.2

Notes: Depths and ages of green clay layers (GCLs) are interpolated using splices and age models provided in Wang, Prell, Blum, et al. (2000). Gamma ray attenuation (GRA) values of GCLs and background sediments are converted to porosity using the coefficient obtained from least-square regression of GRA (smoothed and sampled at all moisture and density intervals) against porosity (data in Wang, Prell, Blum, et al., 2000). miss = missing data.