|
Core, section:
|
1188A-9R-3
|
1188A-9R-3
|
1188F-15Z-1
|
1188F-26Z-1
|
1188F-26Z-1
|
1188F-26Z-1
|
1189A-1R-1
|
|
Piece, interval (cm):
|
2, 22–26
|
2, 22–26
|
16, 139–146
|
4, 62–64
|
4, 62–64
|
4, 62–64
|
2, 10–14
|
|
Depth (mbsf):
|
70.73
|
70.73
|
251.79
|
300.72
|
300.72
|
300.72
|
31.20
|
|
CSIRO:
|
142654a
|
142654b
|
142676
|
142684a
|
142684b
|
142684d
|
142806
|
|
Description:
|
White, bleached
rock with pyrophyllite |
Greenish gray
kernel (Fig. F8B) |
Mottled rock
with pyrophyllite |
Kernel
|
Transition zone
|
Pale selvage
(Fig. F8A) |
Pale gray altered perlite
from Stockwork Zone |
|
Alteration category:
|
XB
|
X-K
|
YB
|
Y-K
|
Y-T
|
Y-S
|
Z
|
| Major element (wt%): | |||||||
| SiO2 | 63.2 | 61.2 | 57.5 | 62.2 | 60.7 | 55.9 | 36.0 |
| TiO2 | 0.56 | 0.54 | 0.75 | 0.80 | 0.78 | 0.77 | 1.06 |
| Al2O3 | 13.7 | 12.8 | 14.0 | 13.8 | 13.8 | 13.7 | 20.8 |
| FeO (total) | 1.11 | 4.6 | 6.3 | 4.6 | 5.0 | 0.67 | 13.6 |
| MnO | 0.01 | 0.02 | 0.01 | 0.05 | 0.02 | 0.01 | 0.0 |
| MgO | 0.24 | 0.55 | 0.17 | 5.9 | 3.3 | 0.35 | 4.2 |
| CaO | 5.7 | 2.9 | 3.6 | 1.2 | 2.1 | 8.5 | 0.4 |
| Na2O | 0.64 | 0.77 | 0.44 | 0.43 | 0.43 | 0.53 | 0.8 |
| K2O | 0.34 | 2.29 | 0.65 | 1.80 | 2.4 | 2.5 | 5.0 |
| P2O5 | 0.12 | 0.14 | 0.22 | 0.30 | 0.35 | 0.22 | 0.3 |
| S (total) | 4.4 | 5.6 | 8.0 | 2.0 | 4.1 | 5.2 | 11.0 |
| LOI | 10.5 | 8.5 | 10.7 | 6.7 | 7.7 | 10.0 | 14.0 |
| Total* | 100.5 | 99.9 | 102.4 | 99.8 | 100.6 | 98.3 | 107.0 |
| Zr/TiO2 | 192 | 205 | 130 | 115 | 118 | 108 | 145 |
Notes: See Table T1 for alteration categories. LOI = loss on drying (105°C) + loss on ignition (1050°C). * = uncorrected for oxygen in sulfides allocated to FeO(t) or not allocated to S(t) for sulfates.