Table T8. Example of Expedition 301 structural log.
| Unit | Core, section | Vein number | Piece length (cm) |
Number of veins |
Ratio (number of veins/piece length) |
Plane (°) |
Dip (°) |
Vein width (mm) |
Vein morphology |
Veins on side of piece | Mineral | Margin | Orientation of chilled margin (°) | Dip of chilled margin (°) | Lineation (°) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Halo width (mm) | |||||||||||||||||
| Min. | Max. | ||||||||||||||||
|
|
301-U1301B- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1B | 1R-1 | 10-1 | 15 | 2 | 0.13 | 288 | 32 | 0.2 | P |
|
fe | 5.0 |
|
|
|
|
|
| 1B | 1R-1 | 10-2 |
|
|
|
137 | 46 | 0.2 | I |
|
sp | 5.0 |
|
|
|
|
|
| 1B | 1R-1 | 15-1 | 5.5 | 5 | 0.91 | 177 | 87 | 2 | P |
|
fe red | 8.0 |
|
|
|
|
|
| 1B | 1R-1 | 15-2 |
|
|
|
35 | 47 | 0.1 | C |
|
sp | 0.0 |
|
|
|
|
|
| 1B | 1R-1 | 15-3 |
|
|
|
209 | 41 | 0.1 | P |
|
fe | 2.0 |
|
|
|
|
|
| 1B | 1R-1 | 15-4 |
|
|
|
227 | 25 | 0.1 | C |
|
sp | 0.0 |
|
|
|
|
|
| 1B | 1R-1 | 15-5 |
|
|
|
13 | 43 | 0.1 | C |
|
sp | 0.0 |
|
|
|
|
|
| 1B | 1R-1 | 16-1 | 9 | 2 | 0.22 | 242 | 73 | 0.2 | P |
|
fe sp | 10.0 |
|
P | 321 | 76 |
|
| 1B | 1R-1 | 16-2 |
|
|
|
68 | 27 | 0.2 | P |
|
sp | 2.0 |
|
P |
|
|
|
| 1C | 2R-1 | 8-1 | 9.5 | 2 | 0.21 | 127 | 78 | 0.2 | P |
|
fe sp | 7.0 |
|
|
|
|
|
| 1C | 2R-1 | 8-2 |
|
|
|
340 | 53 | 0.2 | P stop |
|
fe sp | 10.0 |
|
|
|
|
|
| 1C | 2R-1 | 10-1 | 10.5 | 3 | 0.29 | 108 | 78 | 0.2 | y |
|
sp | 0.0 |
|
P | 006 | 73 |
|
| 1C | 2R-1 | 10-2 |
|
|
|
75 | 76 | 0.1 | P stop |
|
sp | 0.0 |
|
P |
|
|
|
| 1C | 2R-1 | 10-3 |
|
|
|
203 | 60 | 0.1 | P stop |
|
sp | 0.0 |
|
P |
|
|
|
| 1C | 2R-1 | 11-1 | 14 | 4 | 0.29 | 173 | 88 | side |
|
sd | fe sp | 7.0 |
|
P | 86 | 73 |
|
| 1C | 2R-1 | 11-2 |
|
|
|
332 | 70 | 0.2 | P |
|
fe sp | 7.0 |
|
P |
|
|
|
| 1C | 2R-1 | 11-3 |
|
|
|
20 | 78 | 0.2 | y |
|
fe sp | 7.0 |
|
P |
|
|
|
| 1C | 2R-1 | 11-4 |
|
|
|
241 | 51 | 0.2 | P |
|
fe | 7.0 |
|
P |
|
|
|
| 1C | 2R-1 | 12-1 | 46 | 7 | 0.15 | 89 | 76 | side | P | sd | fe sp | 0.0 |
|
|
|
|
|
| 1C | 2R-1 | 12-2 |
|
|
|
131 | 78 | 0.1 | P |
|
fe sp | 5.0 |
|
|
|
|
|
| 1C | 2R-1 | 12-3 |
|
|
|
282 | 33 | 0.2 | P |
|
fe sp | 0.0 |
|
|
|
|
|
| 1C | 2R-1 | 12-4 |
|
|
|
176 | 42 | 0.2 | P |
|
fe | 6.0 |
|
|
|
|
|
| 1C | 2R-1 | 12-5 |
|
|
|
211 | 55 | 0.2 | P |
|
fe sp | 5.0 |
|
|
|
|
|
| 1C | 2R-1 | 12-6 |
|
|
|
67 | 68 | 0.5 | C |
|
fe sp | 2.0 |
|
|
|
|
|
| 1C | 2R-1 | 12-7 |
|
|
|
218 | 71 | 1 | C |
|
fe sp | 3.0 | 7.0 |
|
|
|
|
| 1C | 2R-1 | 15-1 | 9.5 | 3 | 0.32 | 218 | 73 | 1.3 | P |
|
sp dg | 7.0 |
|
P | 302 | 70 |
|
| 1C | 2R-1 | 15-2 |
|
|
|
222 | 27 | 0.5 | P | sd | sp | * |
|
P |
|
|
|
| 1C | 2R-1 | 15-3 |
|
|
|
322 | 78 | 0.1 | I |
|
sp | 2.0 |
|
P |
|
|
|
| 1C | 2R-2 | 4-1 | 8 | 1 | 0.13 | 45 | 74 | 0.5 | P |
|
fe sp | 2.0 |
|
|
|
|
|
| 1C | 2R-2 | 6-1 | 12 | 3 | 0.25 | 8 | 82 | 0.7 | P |
|
sp | 0.0 |
|
P | 251 | 80 |
|
Note: Min. = minimum, Max. = maximum, P = planar, I = irregular, C = curved, stop = vein stopped in the rock, y = y-shaped intersection, sd = side surface is identified as half of vein, fe = iron oxide, sp = spinel, dg = dark green. Only a portion of this table appears here.
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