Table T8. Paleomagnetic summary of samples measured during Expedition 335.
Core, section, interval (cm) |
Lithologic unit |
Measured using |
NRM declination (°) |
NRM inclination (°) |
NRM (A/m) |
Demagnetization type |
Drilling-induced remanent magnetization | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
N |
PCA type |
MAD (°) |
Declination (°) |
Inclination (°) |
Low (mT, °C) |
High (mT, °C) |
Magnitude (A/m) |
|||||||
| 335(312)-1256D- | ||||||||||||||
| 222R-1W, 13 | Gabbro 1 | JR6A | 235.0 | 78.8 | 2.52E+00 | AF | 3 | F | 3.6 | 24.2 | 89.7 | 0 | 10 | 1.94E+00 |
| 222R-2W, 44 | Gabbro 1 | JR6A | 42.4 | 73.4 | 3.80E+00 | Th | 5 | F | 6.1 | 225.0 | 68.3 | 200 | 400 | 7.79E–01 |
| 222R-2W, 47 | Gabbro 1 | JR6A | 30.4 | 73.6 | 2.87E+00 | LTD/Th | 4 | F | 1 | 83.2 | 84.8 | 0 | 100 | 1.48E+00 |
| 223R-2W, 6 | Gabbro 1 | JR6A | 25.6 | 82.7 | 5.98E+00 | AF | 3 | F | 1.4 | 59.9 | 84.4 | 0 | 10 | 5.01E+00 |
| 231R-1W, 41 | Gabbro 2 | JR6A | 257.2 | 71.9 | 9.91E+00 | LTD/Th | 4 | F | 0.5 | 264.0 | 77.8 | 0 | 100 | 6.00E+00 |
| 231R-1W, 43 | Gabbro 2 | JR6A | 251.9 | 71.1 | 5.85E+00 | Th | 4 | F | 5.8 | 153.7 | 77.3 | 0 | 250 | 1.73E+00 |
| 231R-1W, 115 | Gabbro 2 | JR6A | 82.2 | 79.5 | 7.68E+00 | LTD/Th | 4 | F | 0.4 | 60.7 | 84.8 | 0 | 100 | 5.10E+00 |
| 231R-3W, 43 | Gabbro 2 | JR6A | 80.7 | 77.2 | 8.95E+00 | LTD/Th | 4 | F | 0.9 | 87.2 | 78.9 | 0 | 100 | 5.52E+00 |
| 231R-3W, 53 | Gabbro 2 | JR6A | 74.0 | 76.4 | 6.94E–01 | LTD/AF | 5 | F | 7.2 | 83.0 | 83.4 | 0 | 10 | 4.47E–01 |
| 231R-3W, 55 | Gabbro 2 | JR6A | 60.8 | 84.2 | 8.67E–01 | AF | 5 | F | 1.5 | 209.8 | 87.0 | 0 | 20 | 6.69E–01 |
| 231R-3W, 114 | Gabbro 2 | JR6A | 80.8 | 88.1 | 9.55E+00 | LTD/Th | 4 | F | 0.5 | 104.6 | 83.9 | 0 | 100 | 6.30E+00 |
| 335-1256D- | ||||||||||||||
| 235R-1, 6 | Dike Screen 2 | SRM | 18.9 | 32.3 | 6.43E–01 | AF | ||||||||
| Run12-RCJB-RockA-1 | Granoblastic dikes (unspecified) | JR6A | 341.4 | 17.5 | 2.89E+00 | AF | ||||||||
|
Core, section, interval (cm) |
Lithologic unit |
Non-drilling-induced remanent magnetization principal components | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Component |
N |
PCA type |
MAD (°) |
Declination (°) |
Inclination (°) |
Low (mT, °C) |
High (mT, °C) |
Magnitude (A/m) |
||
| 335(312)-1256D- | ||||||||||
| 222R-1W, 13 | Gabbro 1 | ChRM | 7 | F | 3.7 | 233.1 | 20.4 | 35 | 100 | 1.36E–01 |
| 222R-2W, 44 | Gabbro 1 | ChRM | 6 | F | 2.5 | 21.5 | 54.3 | 550 | 600 | 6.77E–01 |
| 222R-2W, 47 | Gabbro 1 | ChRM | 11 | F | 2.6 | 5.5 | 35.8 | 450 | 580 | 1.198 |
| 223R-2W, 6 | Gabbro 1 | ChRM | 7 | F | 5.3 | 346.6 | 22.3 | 30 | 100 | 1.92E–01 |
| 231R-1W, 41 | Gabbro 2 | ChRM | 3 | F | 4.2 | 256.2 | 32.3 | 570 | 580 | 7.04E–01 |
| 231R-1W, 43 | Gabbro 2 | ChRM | 5 | F | 3.4 | 257.4 | 46.8 | 550 | 580 | 6.88E–01 |
| 231R-1W, 115 | Gabbro 2 | Comp A | 6 | F | 3.1 | 264.3 | –53.8 | 200 | 450 | 1.53E+00 |
| ChRM | 6 | F | 7.8 | 81.3 | 40.4 | 550 | 600 | 5.60E–01 | ||
| 231R-3W, 43 | Gabbro 2 | ChRM | 4 | F | 12.6 | 45.5 | 53.0 | 560 | 580 | 4.11E–01 |
| 231R-3W, 53 | Gabbro 2 | ChRM | 3 | F | 8.8 | 53.8 | 24.1 | 70 | 100 | 6.50E–02 |
| 231R-3W, 55 | Gabbro 2 | ChRM | 4 | F | 10.1 | 48.9 | 34.9 | 60 | 100 | 8.00E–02 |
| 231R-3W, 114 | Gabbro 2 | ChRM | 6 | A | 6.3 | 302.6 | 46.6 | 550 | 600 | 6.33E–01 |
| 335-1256D- | ||||||||||
| 235R-1, 6 | Dike Screen 2 | ChRM | 8 | F | 6.0 | 30.1 | 25.3 | 25 | 60 | 1.15E–01 |
| Run12-RCJB-RockA-1 | Granoblastic dikes (unspecified) | ChRM | 5 | F | 2.4 | 7.7 | 17.4 | 30 | 100 | 5.76E–01 |
NRM = natural remanent magnetization, N = number of points used in PCA, PCA = principal component analysis, MAD = maximum angular deviation. AF = alternating field, Th = thermal demagnetization, LTD = low-temperature demagnetization. F = free, A = anchored to origin. ChRM = characteristic remanent magnetization. This table is available in ASCII and in Microsoft Excel format (see 103_T08.XLS in CHAPTER_103 in TABLES in “Supplementary material”).
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