Table T2. Hysteresis properties and estimated magnetic concentrations.
|
Core, section,
interval (cm)
|
Depth (mbsf)
|
Depth (mcd)
|
Mr
(ľAm2/kg) |
Ms
(ľAm2/kg) |
Hc
(mT) |
Mr/Ms
|
Magnetite (%)
|
|---|---|---|---|---|---|---|---|
| 175-1075A- | |||||||
| 3H-5, 18-20 | 17.18 | 17.18 | 60.5 | 756 | 6.14 | 0.080 | 8.22E-04 |
| 3H-5, 58-60 | 17.58 | 17.58 | 39.9 | 824 | 4.47 | 0.048 | 8.96E-04 |
| 3H-6, 38-40 | 18.88 | 18.88 | 47 | 583 | 4.86 | 0.081 | 6.34E-04 |
| 4H-1, 118-120 | 21.68 | 22.94 | 101 | 703 | 9.51 | 0.144 | 7.64E-04 |
| 4H-2, 98-100 | 22.98 | 24.24 | 29.8 | 714 | 3.98 | 0.042 | 7.76E-04 |
| 4H-3, 138-140 | 24.88 | 26.14 | 99.4 | 957 | 8.91 | 0.104 | 1.04E-03 |
| 4H-4, 58-60 | 25.58 | 26.84 | 70.5 | 486 | 9.63 | 0.145 | 5.28E-04 |
| 15H-5, 38-40 | 129.91 | 143.12 | 456 | 5090 | 9.73 | 0.090 | 5.53E-03 |
| 15H-5, 118-120 | 130.71 | 143.92 | 88.6 | 1150 | 7.41 | 0.077 | 1.25E-03 |
| 15H-6, 58-60 | 131.61 | 144.82 | 73.2 | 760 | 10.4 | 0.096 | 8.26E-04 |
| 16H-3, 138-140 | 138.88 | 153.67 | 74.5 | 1030 | 6.08 | 0.072 | 1.12E-03 |
Note: Mr = saturation remanence, Ms = saturation magnetization, Hc = coercivity.