Table T6. Example of Expedition 301 alteration log.
| Hole | Core | Section | Piece number | Length (cm) | Rock color/Alteration type (%) | Comments | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Interval (cm) |
Dark gray |
Brown |
Black halo |
Light gray |
Green halo |
Glass (%) | Vesicles | |||||||||
| Top | Base | Glass | Altered | (%) | Minerals | |||||||||||
| 1301B | 1R | 1 | 1 | 0 | 3 | 3 | 70 |
|
30 |
|
|
50 | 50 | <1 | Sap |
|
| 1301B | 1R | 1 | 2 | 4 | 18 | 14 | 70 |
|
30 |
|
|
50 | 50 | <1 | Sap |
|
| 1301B | 1R | 1 | 3 | 18 | 24 | 6 | 40 |
|
50 | 10 |
|
15 | 80 |
|
|
|
| 1301B | 1R | 1 | 4 | 28 | 36 | 8 |
|
|
|
|
|
|
|
<1 |
|
MBNU |
| 1301B | 1R | 1 | 5 | 37 | 39 | 2 | 30 | 2 | 68 |
|
|
|
|
<1 |
|
|
| 1301B | 1R | 1 | 6 | 41 | 49 | 8 | 90 |
|
10 |
|
|
40 | 50 |
|
|
|
| 1301B | 1R | 1 | 7 | 52 | 56 | 4 |
|
|
|
|
|
|
|
|
|
|
| 1301B | 1R | 1 | 8 | 57 | 63 | 6 | 30 |
|
70 |
|
|
|
|
|
|
|
| 1301B | 1R | 1 | 9 | 65 | 70 | 5 | 50 |
|
50 |
|
|
|
|
2 | Sap, FeOx |
|
| 1301B | 1R | 1 | 10 | 70 | 74 | 4 | 60 |
|
40 |
|
|
|
|
3 | Sap, FeOx |
|
| 1301B | 1R | 1 | 11 | 75 | 83 | 8 |
|
|
40 |
|
|
|
|
|
|
MBLIN |
| 1301B | 1R | 1 | 12 | 83 | 85 | 2 | 60 |
|
|
|
|
|
|
3 | Sap, FeOx |
|
| 1301B | 1R | 1 | 13 | 102 | 103 | 1 |
|
|
|
|
|
|
|
|
|
|
| 1301B | 1R | 1 | 14 | 105 | 117 | 12 |
|
|
|
|
|
|
|
|
|
MBSTE |
| 1301B | 1R | 1 | 15 | 117 | 123 | 6 | 80 |
|
|
|
20 |
|
|
3 | Sap, FeOx |
|
| 1301B | 1R | 1 | 16 | 124 | 134 | 10 | 40 |
|
60 |
|
|
2 | 100 | 3 | Sap, FeOx |
|
| 1301B | 1R | 1 | 17 | 134 | 138 | 4 | 100 |
|
|
|
|
20 | 95 | 3 | Sap |
|
| 1301B | 1R | 1 | 18 | 140 | 144 | 4 | 40 |
|
60 |
|
|
|
|
3 | Sap, FeOx |
|
| 1301B | 1R | 1 | 19 | 144 | 147 | 3 | 40 |
|
60 |
|
|
|
|
3 | Sap, FeOx |
|
| 1301B | 1R | 2 | 1 | 0 | 3 | 3 | 50 |
|
50 |
|
|
|
|
3 | Sap |
|
| 1301B | 1R | 2 | 2 | 4 | 6 | 2 | 50 |
|
50 |
|
|
|
|
3 | Sap |
|
| 1301B | 1R | 2 | 3 | 7 | 12 | 5 | 50 |
|
50 |
|
|
|
|
3 | Sap |
|
| 1301B | 1R | 2 | 4 | 14 | 18 | 4 | 40 |
|
60 |
|
|
5 | 90 | 3 | Sap |
|
| 1301B | 2R | 1 | 1 | 0 | 5 | 5 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 2 | 5 | 9 | 4 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 3 | 9 | 12 | 3 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 4 | 12 | 15 | 3 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 5 | 16 | 18 | 2 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 6 | 19 | 23 | 4 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 7 | 23 | 30 | 7 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 8 | 31 | 40 | 9 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 9 | 40 | 44 | 4 | 69 |
|
25 | 6 |
|
|
|
3 | Sap, FeOx |
|
| 1301B | 2R | 1 | 10 | 45 | 55 | 11 | 100 |
|
|
|
|
20 | 50 | 4 | Sap |
|
| 1301B | 2R | 1 | 11 | 55 | 72 | 17 | 60 |
|
40 |
|
|
2.5 | 80 | 4 | Sap, FeOx |
|
| 1301B | 2R | 1 | 12 | 73 | 118 | 45 | 80 |
|
20 |
|
|
|
|
5 | Sap |
|
| 1301B | 2R | 1 | 13 | 121 | 127 | 7 | 20 |
|
80 |
|
|
|
|
5 | Sap |
|
| 1301B | 2R | 1 | 14 | 128 | 132 | 4 | 20 |
|
80 |
|
|
|
|
5 | Sap |
|
| 1301B | 2R | 1 | 15 | 134 | 144 | 10 | 40 |
|
60 |
|
|
10 | 50 | 3 | Sap |
|
Note: sap = saponite, FeOx = iron oxides. Comments column includes sample codes (e.g., MBNU, MBLIN, and MBSTE) for pieces taken as whole-round microbiology samples, which were therefore not described. Only a portion of this table appears here.
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