Table T13. Discrete sample remanence data, Holes U1309B and U1309D, Expedition 304.
Core, section, interval (cm) | Piece | Depth (mbsf) | Lithology | NRM | Principal component analysis | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Declination (°) | Inclination (°) | Intensity (A/m) |
Polarity | N | Type | MAD | Declination (°) |
Inclination (°) | Demag (mT/°C) | |||||
Low | High | |||||||||||||
304-U1309B- | ||||||||||||||
1R-3, 121 | 14 | 3.11 | Plagioclase phyric basalt | 192.5 | 74.7 | 7.55E+00 | R | 5 | F | 7.8 | 264.1 | –43 | 20 | 50 |
2R-1, 30 | 3 | 15.80 | Brecciated basalt | 97.1 | –18.0 | 2.48E–03 | R | 7 | F | 7.8 | 67 | –60 | 35 | 100 |
2R-1, 90 | 8 | 16.40 | Sparsely plagioclase phyric basalt | 169.4 | 76.1 | 4.99E+00 | R | 2 | A | 1.3 | 90.9 | –59 | 40 | 50 |
3R-1, 71 | 10 | 20.71 | Aphyric basalt | 151.2 | –44.3 | 4.76E–03 | R | 11 | F | 1.6 | 145.3 | –67 | 20 | 150 |
3R-1, 112 | 14 | 21.12 | Gabbro | 35.2 | –50.3 | 5.34E–02 | R | 12 | F | 0.9 | 27.1 | –55 | 15 | 150 |
5R-2, 90 | 5 | 31.84 | Diabase | 177.1 | 81.1 | 9.33E–01 | R | 7 | F | 5.7 | 150.4 | –46 | 25 | 80 |
5R-2, 92 | 5 | 31.86 | Diabase | 130.6 | 84.0 | 2.36E+00 | R | 6 | F | 15.8 | 136.9 | –35 | 25 | 60 |
6R-1, 99 | 9 | 34.19 | Diabase | 169.3 | 78.3 | 1.16E+01 | R | 6 | F | 5.5 | 53.6 | –53 | 35 | 100 |
8R-2, 73 | 9 | 45.12 | Gabbro | 74.8 | –35.3 | 1.02E+00 | R | 12 | F | 1.5 | 68.7 | –43 | 5 | 100 |
9R-1, 35 | 3A | 47.85 | Gabbro | 129.6 | –43.2 | 2.45E–01 | R | 11 | F | 1.5 | 127.1 | –53 | 10 | 100 |
10R-2, 7 | 1 | 53.94 | Gabbro | 293.7 | –38.4 | 2.45E–01 | R | 10 | F | 0.6 | 295.3 | –54 | 15 | 100 |
11R-1, 4 | 1A | 57.04 | Gabbro | 185.2 | –44.5 | 3.26E–02 | R | 8 | F | 1.1 | 193.1 | –54 | 25 | 100 |
11R-1, 93 | 8 | 57.93 | Harzburgite | 250.0 | 67.8 | 4.97E+00 | R | 6 | F | 3.4 | 266.9 | –63 | 20 | 50 |
11R-1, 124 | 9 | 58.24 | Harzburgite | 108.2 | 70.0 | 5.93E+00 | R | 8 | F | 1.3 | 13.1 | –52 | 15 | 60 |
12R-1, 127 | 8 | 62.87 | Diabase | 154.3 | 76.2 | 5.14E+00 | R | 5 | A | 7.2 | 87.7 | –47 | 25 | 50* |
12R-1, 131 | 8A | 62.91 | Diabase | 172.2 | 76.2 | 6.55E+00 | D | 10 | F | 7.6 | 184.1 | 68.3 | 400 | 580* |
12R-1, 137 | 8A | 62.97 | Diabase | 173.0 | 70.0 | 6.33E+00 | R | 5 | A | 11.8 | 97.9 | –38 | 30 | 60* |
12R-2, 46 | 4 | 63.50 | Diabase | 156.6 | 76.1 | 1.35E+01 | D | 8 | F | 3.7 | 155.9 | 72.6 | 500 | 580* |
12R-3, 55 | 3 | 64.84 | Diabase | 158.8 | 79.0 | 1.08E+01 | R | 3 | A | 4.8 | 287.3 | –75 | 35 | 50* |
13R-1, 123 | 9A | 67.33 | Microdiabase | 157.9 | 77.9 | 7.73E–01 | — | — | — | — | — | — | — | — |
14R-1, 107 | 10 | 72.17 | Plagioclase phyric basalt | 162.0 | 66.5 | 5.12E–02 | R | 5 | F | 4.8 | 78 | –56 | 30 | 100 |
15R-1, 27 | 3 | 75.87 | Layered gabbro | 123.0 | –35.3 | 1.58E–02 | R | 6 | F | 1.9 | 122 | –50 | 25 | 100 |
15R-2, 76 | 6B | 77.64 | Layered gabbro | 306.1 | –44.0 | 3.24E–03 | R | 7 | F | 2.9 | 310.2 | –51 | 20 | 100 |
16R-2, 27 | 5 | 82.04 | Olivine gabbro | 205.0 | –5.1 | 1.65E–01 | R | 7 | F | 2.2 | 212.3 | –53 | 20 | 100 |
16R-3, 22 | 1 | 83.10 | Olivine gabbro | 9.6 | –16.6 | 1.21E–01 | R | 8 | F | 1.9 | 20.5 | –48 | 20 | 120 |
17R-2, 6 | 1 | 86.40 | Olivine gabbro | 217.7 | –43.8 | 6.44E–02 | R | 8 | F | 1.1 | 221 | –49 | 20 | 120 |
17R-2, 40 | 1 | 86.74 | Olivine gabbro | 212.3 | –39.7 | 1.24E–01 | R | 9 | F | 2.2 | 217.5 | –48 | 520 | 600 |
18R-2, 44 | 5 | 91.45 | Troctolite, olivine gabbro | 190.2 | –30.4 | 3.49E–01 | R | 8 | F | 1.5 | 192.2 | –51 | 15 | 100 |
18R-3, 53 | 9 | 93.00 | Basalt | 279.4 | –30.8 | 1.09E–01 | R | 8 | F | 3.5 | 278.6 | –54 | 15 | 100 |
18R-3, 115 | 16 | 93.62 | Basalt | 156.3 | 78.1 | 8.72E+00 | D | 5 | F | 2.4 | 186.8 | 69 | 15 | 40* |
19R-2, 44 | 4 | 96.02 | Diabase | 161.7 | 74.8 | 5.31E+00 | R | 3 | A | 4.7 | 108 | –51 | 40 | 60 |
19R-2, 48 | 4A | 96.06 | Diabase | 165.5 | 72.3 | 6.26E+00 | D | 14 | F | 1.7 | 166 | 72.7 | 0 | 580* |
19R-2, 57 | 4B | 96.15 | Diabase | 183.9 | 64.1 | 2.72E+00 | R | 4 | A | 7 | 136.9 | –18 | 35 | 60 |
20R-1, 38 | 2B | 99.38 | Diabase | 163.2 | 73.4 | 9.54E+00 | D | 11 | F | 2.6 | 154 | 72.8 | 300 | 580* |
20R-2, 75 | 5 | 101.05 | Diabase | 165.5 | 74.1 | 1.18E+01 | D | 5 | F | 0.8 | 161.3 | 71.8 | 15 | 35* |
304-U1309D- | ||||||||||||||
1R-1, 36 | 1 | 20.86 | Diabase | 168.3 | 82.3 | 3.82E+00 | R | 6 | F | 1.5 | 353.2 | –50.6 | 30 | 100 |
2R-1, 86 | 8 | 27.66 | Diabase | 152.7 | 80.8 | 4.93E+00 | R | 7 | F | 5 | 169.5 | –41.4 | 25 | 100 |
4R-1, 18 | 3 | 31.58 | Diabase | 219.3 | 84.2 | 6.21E+00 | R | 6 | F | 4.2 | 14.5 | –42.5 | 30 | 100 |
5R-1, 54 | 5A | 36.54 | Troctolitic gabbro | 65.2 | –8.1 | 3.72E–02 | R | 6 | F | 5.5 | 74.8 | –41.9 | 30 | 100 |
5R-2, 54 | 2B | 37.95 | Troctolitic gabbro | 81.2 | 78.4 | 2.34E–02 | R | 8 | F | 5.1 | 14.9 | –50.4 | 20 | 100 |
5R-3, 115 | 12 | 40.02 | Troctolitic gabbro | 146.5 | –30.3 | 1.41E–02 | R | 9 | F | 1 | 141.9 | –51.2 | 15 | 100 |
6R-1, 125 | 17A | 42.05 | Olivine gabbro | 1.6 | –40.3 | 6.66E–03 | R | 9 | F | 1.5 | 0.1 | –49.1 | 15 | 100 |
6R-2, 70 | 8 | 43.00 | Diabase | 146.0 | 74.1 | 5.90E+00 | R | 4 | A | 6.3 | 15.5 | –48.5 | 40 | 80 |
6R-3, 17 | 1 | 43.61 | Diabase | 168.1 | 76.9 | 1.19E+01 | R | 5 | F | 7.6 | 158.6 | –53.4 | 35 | 80 |
7R-2, 28 | 1 | 46.86 | Diabase | 153.4 | 76.1 | 8.78E+00 | R | 6 | F | 6.1 | 207.1 | –47.1 | 30 | 80 |
7R-3, 94 | 16 | 48.97 | Olivine gabbro | 176.3 | 73.4 | 9.04E–02 | N | 7 | F | 3.9 | 176.4 | 35.6 | 25 | 100* |
8R-1, 59 | 8B | 51.09 | Olivine-bearing gabbro | 315.4 | 61.1 | 4.16E–01 | R | 7 | F | 8.2 | 310.8 | –48.8 | 15 | 60 |
8R-2, 19 | 2 | 52.15 | Troctolite/Gabbro | 186.5 | –42.8 | 5.32E–03 | R | 7 | F | 1.3 | 188.8 | –53.2 | 25 | 100 |
8R-2, 133 | 16 | 53.29 | Troctolite | 171.5 | 36.6 | 1.65E–01 | R | 6 | F | 4.9 | 180.5 | –51.7 | 15 | 50 |
9R-1, 93 | 12A | 56.23 | Olivine gabbro/gabbro | 242.8 | –11.1 | 1.30E–01 | R | 7 | F | 1.5 | 248.6 | –30.4 | 25 | 100 |
9R-2, 4 | 1 | 56.70 | Gabbro | 93.9 | –58.7 | 5.70E–01 | R | 6 | F | 0.6 | 80.0 | –62.7 | 30 | 100 |
10R-2, 44 | 6 | 62.02 | Troctolitic gabbro | 76.3 | –29.5 | 2.99E–03 | R | 9 | F | 1.9 | 65.2 | –45.3 | 15 | 100 |
11R-2, 40 | 2 | 66.69 | Layered gabbro | 170.3 | –38.0 | 6.74E–03 | R | 9 | F | 1.1 | 173.7 | –58.0 | 15 | 100 |
12R-1, 77 | 6 | 70.57 | Troctolite | 328.7 | –36.8 | 2.88E–02 | R | 12 | F | 2.9 | 323.4 | –42.9 | 300 | 580 |
13R-1, 64 | 4 | 75.14 | Gabbro | 8.8 | 66.4 | 2.88E–01 | R | 11 | F | 4.2 | 9.5 | –44.3 | 15 | 120 |
13R-2, 89 | 7A | 76.72 | Gabbro | 139.4 | –19.0 | 2.78E–01 | R | 10 | F | 1.7 | 133.6 | –40.0 | 15 | 100 |
13R-3, 30 | 5 | 77.56 | Troctolitic gabbro | 242.5 | –42.3 | 4.70E–02 | R | 10 | F | 1 | 243.6 | –48.6 | 15 | 120 |
14R-1, 98 | 15 | 80.38 | Olivine gabbro | 310.1 | –30.9 | 1.13E–02 | R | 9 | F | 1.5 | 313.2 | –39.6 | 20 | 120 |
14R-2, 129 | 13 | 82.03 | Basalt | 279.7 | 87.2 | 9.70E–01 | R | 6 | A | 5.8 | 311.6 | –47.6 | 15 | 40 |
15R-2, 126 | 12 | 86.86 | Diabase | 159.9 | 77.7 | 8.25E+00 | R | 3 | F | 12.5 | 175.4 | –44.4 | 35 | 50 |
16R-2, 63 | 5 | 91.13 | Diabase | 152.6 | 80.5 | 4.43E+00 | — | — | — | — | — | — | — | — |
16R-4, 140 | 12 | 94.33 | Basalt dike | 185.9 | 68.4 | 2.34E+00 | D | 13 | F | 1 | 184.7 | 68.4 | 2 | 60* |
16R-5, 22 | 2 | 94.61 | Gabbro | 100.6 | –9.3 | 2.06E–01 | R | 9 | F | 1.3 | 98.3 | –48.8 | 20 | 120 |
17R-1, 61 | 5B | 99.31 | Olivine gabbro | 177.6 | –40.7 | 2.01E–01 | R | 10 | F | 1.5 | 176.8 | –45.3 | 15 | 120 |
17R-2, 27 | 1 | 100.15 | Olivine gabbro | 352.7 | –37.9 | 1.57E–01 | R | 6 | F | 1.4 | 356.2 | –45.4 | 540 | 590 |
17R-3, 54 | 3 | 101.80 | Olivine gabbro | 18.2 | –8.6 | 3.03E–02 | R | 5 | F | 3.9 | 14.0 | –44.5 | 550 | 590 |
20R-1, 72 | 8 | 117.82 | Microdiabase | 105.8 | 61.6 | 7.16E–02 | — | — | — | — | — | — | — | — |
20R-1, 130 | 16 | 118.40 | Microdiabase | 150.5 | 53.6 | 3.87E–02 | R | 3 | A | 4.6 | 27.8 | –31.2 | 520 | 540 |
22R-1, 87 | 11 | 127.17 | Microdiabase | 169.0 | 67.9 | 4.42E–02 | N | 4 | F | 14.3 | 152.6 | 39.0 | 10 | 25* |
22R-2, 8 | 1 | 127.60 | Troctolitic gabbro | 345.9 | –7.8 | 3.47E–03 | R | 3 | A | 2.3 | 355.6 | –45.7 | 520 | 540 |
22R-2, 79 | 2 | 128.31 | Troctolitic gabbro | 225.9 | 67.3 | 7.89E–03 | R | 3 | A | 2.4 | 106.2 | –36.4 | 530 | 570 |
22R-3, 45 | 4 | 129.43 | Troctolitic gabbro | 20.5 | 80.0 | 4.80E–04 | — | — | — | — | — | — | — | — |
23R-1, 82 | 15 | 131.82 | Troctolitic gabbro | 228.4 | 40.1 | 9.12E–04 | R | 4 | F | 5.4 | 238.2 | –29.1 | 30 | 100 |
23R-2, 95 | 11 | 133.45 | Serpentinized peridotite | 172.5 | 62.5 | 1.16E+00 | R | 5 | F | 3.2 | 160.2 | –53.6 | 20 | 40 |
24R-1, 125 | 15 | 139.15 | Olivine gabbro | 153.4 | –26.3 | 2.54E–02 | R | 6 | F | 2.9 | 151.1 | –55.3 | 40 | 140 |
25R-3, 26 | 2 | 145.81 | Olivine-bearing gabbro | 32.0 | –20.8 | 2.32E–02 | R | 5 | F | 4.8 | 17.4 | –57.0 | 50 | 140 |
26R-1, 16 | 4 | 147.76 | Orthopyroxene-bearing gabbro | 5.4 | –46.3 | 7.19E–02 | R | 6 | F | 1.3 | 356.6 | –47.4 | 40 | 140 |
26R-1, 91 | 9 | 148.51 | Recrystallized gabbro | 234.9 | –46.0 | 4.89E–02 | R | 8 | F | 1.8 | 236.6 | –50.8 | 540 | 620 |
26R-2, 130 | 9 | 149.99 | Olivine-bearing gabbro | 41.2 | –26.8 | 3.66E–02 | R | 4 | F | 2.8 | 44.5 | –59.0 | 50 | 100 |
26R-4, 34 | 1 | 151.48 | Olivine-bearing gabbro | 331.2 | 38.3 | 1.03E–02 | R | 7 | F | 10.8 | 307.1 | –44.0 | 15 | 50 |
27R-1, 88 | 9 | 153.18 | Olivine gabbro | 353.9 | 24.9 | 4.32E–03 | R | 11 | F | 5.3 | 358.1 | –42.5 | 15 | 120 |
27R-2, 53 | 5 | 154.17 | Olivine gabbro | 157.2 | –97 | 4.37E–02 | R | 9 | F | 1.1 | 155.4 | –50.1 | 530 | 620 |
28R-2, 61 | 1B | 158.59 | Olivine-bearing gabbro | 288.4 | –26.1 | 2.07E–01 | R | 13 | F | 3.4 | 293.1 | –43.2 | 15 | 160 |
28R-4, 30 | 4 | 161.23 | Orthopyroxene-bearing gabbro | 149.7 | –10.9 | 4.06E–01 | R | 3 | A | 2.6 | 166.8 | –21.1 | 120 | 160 |
28R-4, 34 | 4 | 161.27 | Orthopyroxene-bearing gabbro | 135.2 | 54.8 | 8.58E–01 | R | 8 | F | 2.8 | 149.2 | –30.2 | 540 | 620 |
28R-5, 11 | 1 | 162.46 | Gabbro | 155.3 | 72.9 | 7.65E–01 | R | 8 | F | 2.6 | 53.0 | –57.3 | 35 | 160 |
29R-2, 134 | 14 | 164.68 | Deformed gabbro | 140.6 | –2.4 | 9.72E–02 | R | 4 | F | 2.6 | 139.0 | –49.1 | 80 | 160 |
30R-1, 60 | 9 | 167.30 | Gabbro | 355.4 | –28.6 | 3.83E–02 | R | 4 | F | 1.7 | 3.0 | –43.2 | 80 | 160 |
31R-2, 11 | 2 | 173.07 | Serpentinized peridotite | 176.9 | 62.9 | 9.62E+00 | R | 5 | F | 8.4 | 144.9 | –43.5 | 25 | 50 |
32R-1, 101 | 13 | 177.31 | Olivine-bearing gabbro | 213.1 | –30.6 | 2.51E–02 | R | 4 | F | 2.6 | 223.4 | –46.0 | 60 | 130 |
32R-2, 27 | 2 | 177.89 | Gabbro | 145.1 | 27.0 | 4.25E–02 | R | 5 | F | 5.3 | 146.7 | –49.3 | 60 | 160 |
33R-1, 60 | 6 | 181.70 | Olivine gabbro | 209.2 | –24.2 | 9.48E–03 | R | 6 | F | 4 | 205.4 | –52.3 | 560 | 620 |
33R-1, 76 | 6C | 181.86 | Olivine gabbro | 188.4 | –16.1 | 6.04E–03 | R | 5 | F | 2.2 | 175.0 | –53.5 | 60 | 160 |
33R-1, 84 | 6 | 181.94 | Olivine gabbro | 125.9 | 57.7 | 7.27E–03 | R | 8 | F | 3 | 201.1 | –39.1 | 540 | 620 |
33R-2, 46 | 2A | 183.01 | Olivine-bearing gabbro | 69.9 | 3.4 | 2.51E–02 | R | 10 | F | 1.9 | 42.6 | –39.6 | 25 | 160 |
33R-3, 37 | 4 | 184.28 | Olivine-bearing gabbro | 28.5 | 50.9 | 2.48E–02 | R | 10 | F | 4.3 | 15.9 | –38.1 | 20 | 130 |
34R-1, 115 | 14A | 187.15 | Gabbro | 159.6 | 78.6 | 1.22E–02 | N | 5 | A | 3.5 | 152.6 | 51.8 | 60 | 160* |
35R-1, 45 | 7 | 191.25 | Oxide gabbro | 97.6 | 81.2 | 3.58E+01 | R | 5 | F | 16.2 | 85.0 | –26.2 | 35 | 80 |
35R-3, 133 | 18 | 194.83 | Oxide gabbro | 189.7 | 81.5 | 1.37E+01 | R | 9 | F | 5.3 | 171.6 | –20.9 | 15 | 80 |
36R-2, 12 | 1 | 197.21 | Olivine-bearing gabbro | 219.5 | 60.9 | 9.57E–03 | R | 7 | F | 3.6 | 338.5 | –30.8 | 550 | 620 |
36R-2, 16 | 1 | 197.25 | Olivine-bearing gabbro | 251.9 | 74.4 | 1.55E–02 | N | 5 | A | 6.9 | 305.1 | 41.8 | 25 | 50* |
36R-3, 102 | 10 | 199.51 | Gabbro | 243.9 | 32.3 | 9.95E–03 | R | 6 | F | 5.5 | 266.8 | –22.2 | 40 | 120 |
37R-1, 26 | 4 | 200.66 | Gabbro | 19.1 | 62.5 | 3.98E–01 | H | 9 | F | 2.2 | 38.3 | –9.3 | 20 | 100 |
37R-2, 122 | 9 | 203.12 | Gabbro | 190.2 | –23.9 | 2.29E–02 | R | 10 | F | 2.1 | 184.8 | –41.0 | 20 | 120 |
38R-1, 44 | 2 | 205.64 | Gabbro | 212.5 | 56.4 | 5.44E–01 | R | 8 | F | 2.9 | 253.9 | –38.3 | 25 | 100 |
38R-1, 92 | 7 | 206.12 | Gabbro | 357.6 | 67.2 | 1.68E–02 | R | 6 | F | 4.2 | 46.3 | –40.1 | 560 | 620 |
38R-2, 60 | 5 | 207.30 | Gabbro | 222.8 | 66.5 | 8.28E–03 | R | 6 | F | 4.9 | 311.7 | –33.9 | 560 | 620 |
39R-2, 25 | 3 | 211.75 | Olivine gabbro | 200.6 | 69.3 | 7.65E–03 | N | 8 | F | 8.8 | 215.9 | 33.9 | 10 | 50* |
39R-2, 64 | 8 | 212.14 | Olivine gabbro | 146.9 | 79.6 | 7.80E–02 | D | 3 | F | 0.8 | 152.9 | 81.2 | 0 | 10* |
41R-1, 109 | 10A | 220.59 | Troctolite to gabbro layers | 267.0 | 21.8 | 1.29E–02 | H | 7 | F | 2.9 | 274.5 | –5.3 | 540 | 600 |
41R-1, 118 | 10B | 220.68 | Troctolite to gabbro layers | 252.3 | 17.9 | 1.92E–02 | R | 5 | F | 10 | 267.9 | –14.0 | 40 | 80 |
42R-1, 127 | 16 | 225.57 | Olivine-bearing gabbro | 158.7 | –6.5 | 2.61E–02 | R | 9 | F | 5.4 | 155.5 | –14.8 | 20 | 80 |
44R-1, 9 | 1 | 233.29 | Olivine gabbro | 62.0 | 84.2 | 1.38E–02 | R | 8 | F | 2.3 | 62.5 | –27.7 | 530 | 600 |
44R-1, 25 | 1 | 233.45 | Olivine gabbro | 279.9 | 78.2 | 1.78E–02 | N | 4 | F | 3.6 | 258.3 | 58.7 | 15 | 30* |
44R-2, 72 | 4 | 235.42 | Disseminated oxide gabbro | 257.0 | 75.3 | 1.47E+00 | H | 8 | F | 3.8 | 352.3 | –8.1 | 20 | 70 |
44R-4, 7 | 1 | 237.65 | Olivine-bearing/Oxide gabbro | 151.4 | 78.8 | 1.57E+00 | N | 4 | F | 8.4 | 303.6 | 44.1 | 35 | 60* |
45R-3, 24 | 2 | 240.94 | Olivine-bearing/Oxide gabbro | 135.1 | 76.3 | 1.10E+01 | R | 5 | F | 3 | 314.6 | –17.0 | 60 | 140 |
46R-1, 102 | 12 | 243.82 | Olivine-bearing gabbro | 12.8 | 2.3 | 1.21E–02 | H | 11 | F | 1.7 | 11.8 | –5.1 | 20 | 140 |
46R-1, 107 | 12 | 243.87 | Olivine-bearing gabbro | 16.8 | 66.8 | 1.25E–02 | H | 4 | F | 5.7 | 6.9 | 7.4 | 570 | 600 |
47R-3, 32 | 1 | 250.74 | Olivine-bearing gabbro | 301.7 | 82.8 | 1.01E+01 | R | 7 | F | 11.5 | 276.9 | –13.9 | 15 | 50 |
48R-1, 48 | 6 | 252.88 | Gabbro | 255.7 | 73.7 | 2.02E–01 | R | 8 | F | 3.3 | 242.7 | –49.9 | 15 | 60 |
48R-1, 93 | 13 | 253.33 | Olivine gabbro | 96.9 | –28.4 | 2.43E–02 | R | 6 | F | 1.9 | 97.3 | –40.8 | 550 | 600 |
48R-1, 116 | 15 | 253.56 | Troctolite | 78.5 | –29.2 | 3.49E–02 | R | 14 | F | 2.8 | 76.1 | –40.0 | 15 | 160 |
48R-2, 78 | 9 | 254.64 | Olivine gabbro | 144.1 | 4.8 | 6.94E–02 | R | 11 | F | 1.5 | 137.7 | –32.5 | 25 | 160 |
49R-1, 60 | 9 | 257.80 | Olivine gabbro | 217.7 | 70.6 | 2.19E+00 | R | 5 | F | 4.3 | 220.7 | –42.9 | 10 | 30 |
50R-1, 89 | 7 | 262.89 | Olivine-bearing gabbro | 103.6 | –41.5 | 6.62E–02 | R | 6 | F | 2.7 | 104.2 | –47.4 | 550 | 600 |
50R-3, 32 | 2 | 265.21 | Olivine-bearing gabbro | 140.9 | –32.5 | 2.29E–01 | R | 14 | F | 1.9 | 141.4 | –32.9 | 15 | 160 |
51R-1, 79 | 5 | 267.59 | Gabbro/Fine-grained gabbro | 13.4 | –33.4 | 3.64E–02 | R | 10 | F | 1.3 | 11.0 | –41.7 | 30 | 160 |
51R-2, 25 | 1A | 268.08 | Gabbro | 302.1 | –32.0 | 1.18E–01 | R | 6 | F | 3.7 | 309.0 | –37.7 | 70 | 160 |
51R-4, 3 | 1 | 270.71 | Gabbro | 189.4 | 65.3 | 5.99E–01 | R | 4 | F | 7.4 | 242.3 | –30.8 | 50 | 100 |
52R-2, 55 | 2 | 273.65 | Gabbro | 15.7 | 52.6 | 3.48E–01 | R | 12 | F | 2.3 | 335.0 | –37.9 | 20 | 160 |
52R-3, 85 | 4 | 275.45 | Gabbro | 352.1 | 43.4 | 1.29E–02 | R | 13 | F | 6.6 | 355.0 | –41.0 | 15 | 140 |
53R-1, 17 | 5 | 276.57 | Gabbro | 53.9 | 34.0 | 1.57E–02 | R | 6 | F | 4.9 | 34.1 | –52.8 | 550 | 600 |
53R-1, 58 | 7 | 276.98 | Gabbro | 128.0 | 78.2 | 4.78E–02 | D | 3 | F | 1.8 | 131.1 | 78.2 | 0 | 10* |
54R-1, 30 | 4B | 281.5 | Oxide-bearing gabbro | 150.3 | 73.3 | 1.97E+01 | R | 3 | A | 3.1 | 4.0 | –47.6 | 50 | 70 |
54R-3, 59 | 3 | 284.48 | Olivine gabbro | 179.0 | 75.4 | 1.05E+01 | R | 6 | F | 12.6 | 352.0 | –32.5 | 25 | 60 |
55R-1, 107 | 15 | 287.07 | Olivine gabbro | 175.8 | 70.6 | 8.95E–02 | N | 6 | F | 2.6 | 162.5 | 63.7 | 15 | 40* |
55R-3, 81 | 11 | 289.73 | Olivine-bearing gabbro | 206.2 | 54.4 | 1.98E–01 | R | 4 | F | 3.6 | 318.6 | –36.4 | 40 | 80 |
55R-3, 102 | 13 | 289.94 | Olivine-bearing gabbro | 150.2 | 43.3 | 4.49E–02 | R | 6 | A | 6.6 | 156.3 | –39.4 | 520 | 570 |
56R-1, 30 | 4 | 291.1 | Dunite | 147.0 | 5.1 | 2.44E–01 | D | 8 | F | 1.4 | 163.5 | 74.8 | 5 | 40* |
56R-2, 108 | 4B | 292.98 | Gabbroic dike | 59.8 | 65.5 | 2.26E+00 | R | 5 | F | 3.2 | 63.2 | –38.5 | 20 | 40 |
57R-2, 7 | 1 | 297.05 | Olivine-bearing gabbro | 48.5 | 67.2 | 2.45E–01 | R | 5 | F | 1.8 | 20.1 | –40.5 | 560 | 600 |
57R-2, 120 | 5A | 298.18 | Olivine-bearing gabbro | 49.2 | 74.2 | 5.30E–02 | R | 7 | F | 6.4 | 14.1 | –59.2 | 25 | 80 |
59R-3, 102 | 1A | 309.02 | Olivine-bearing gabbro | 222.4 | 74.5 | 1.75E+00 | D | 4 | F | 1.8 | 216.7 | 75.5 | 0 | 15* |
60R-1, 52 | 1 | 310.52 | Olivine-bearing gabbro | 248.6 | 34.4 | 8.82E–02 | R | 4 | F | 1 | 234.4 | –25.8 | 570 | 600 |
60R-2, 43 | 3 | 311.76 | Dunite cumulate | 234.4 | 74.9 | 2.09E+01 | D | 5 | F | 1.5 | 232.0 | 76.5 | 0 | 20* |
60R-3, 59 | 5 | 313.42 | Olivine gabbro cumulate | 274.0 | 66.7 | 1.35E+01 | R | 4 | F | 10.5 | 322.0 | –25.7 | 20 | 35 |
62R-1, 81 | 10A | 320.41 | Oxide gabbro | 279.2 | 80.3 | 1.26E+00 | R | 8 | F | 4.6 | 342.4 | –33.8 | 20 | 70 |
62R-2, 66 | 12B | 321.67 | Oxide gabbro | 243.9 | 56.1 | 2.10E+01 | R | 3 | A | 3.8 | 233.1 | –46.1 | 40 | 60 |
63R-1, 107 | 15 | 325.47 | Dunite cumulate | 94.0 | 69.3 | 1.70E+01 | R | 4 | A | 7.2 | 39.3 | –42.6 | 20 | 35 |
63R-3, 29 | 5 | 327.65 | Troctolitic gabbro cumulate | 174.2 | 48.0 | 1.78E+01 | R | 3 | F | 2 | 161.6 | –25.3 | 580 | 600 |
64R-2, 84 | 8 | 331.27 | Dunite cumulate | 285.3 | 54.5 | 1.66E+01 | R | 4 | F | 0.9 | 330.0 | –32.3 | 15 | 30 |
65R-1, 83 | 14 | 334.83 | Troctolitic gabbro cumulate | 191.2 | 61.6 | 2.54E+01 | R | 5 | F | 15.1 | 318.1 | –34.4 | 25 | 50 |
65R-2, 115 | 13 | 336.65 | Gabbroic dike | 94.3 | 79.4 | 2.53E+00 | R | 4 | F | 1.6 | 30.5 | –10.7 | 20 | 35 |
66R-2, 14 | 3 | 340.44 | Troctolite cumulate | 208.6 | 63.1 | 2.62E+01 | R | 4 | F | 11.3 | 288.2 | –22.5 | 20 | 35 |
67R-2, 28 | 1D | 345.3 | Olivine-bearing gabbro | 197.5 | 80.5 | 2.37E+00 | R | 6 | F | 8.2 | 117.0 | –38.1 | 25 | 60 |
68R-1, 57 | 3 | 348.97 | Gabbro | 330.8 | 39.2 | 9.93E–02 | R | 6 | F | 1.8 | 153.0 | –48.1 | 550 | 600 |
68R-3, 52 | 5 | 351.8 | Olivine-bearing gabbro | 148.3 | 3.0 | 3.06E–02 | R | 4 | A | 4.7 | 143.4 | –26.5 | 50 | 80 |
69R-2, 103 | 4D | 355.58 | Oxide gabbro/troctolitic cumulate | 235.4 | 79.7 | 2.86E+01 | R | 4 | A | 4.9 | 308.7 | –38.7 | 35 | 60 |
70R-2, 35 | 1B | 359.04 | Troctolitic/Olivine gabbro domain cumulate | 246.3 | 73.3 | 1.54E+01 | N | 9 | F | 6.3 | 297.4 | 59.8 | 520 | 600* |
70R-2, 44 | 1B | 359.13 | Troctolitic/Olivine gabbro domain cumulate | 248.2 | 70.7 | 2.60E+01 | D | 3 | F | 0.5 | 241.7 | 71.3 | 0 | 10* |
71R-2, 112 | 3B | 365.04 | Leucocratic troctolitic/olivine gabbro domain cumulate | 3.1 | 58.4 | 1.52E–03 | R | 7 | F | 6.9 | 6.3 | –41.9 | 540 | 600 |
71R-3, 70 | 5 | 366.06 | Leucocratic troctolitic/olivine gabbro domain cumulate | 228.0 | 22.6 | 8.98E–04 | R | 9 | A | 8.5 | 270.0 | –38.2 | 20 | 80 |
72R-1, 76 | 1C | 368.36 | Leucocratic troctolitic/olivine gabbro domain cumulate | 179.0 | 80.2 | 2.61E+00 | R | 3 | A | 8.6 | 66.3 | –58.3 | 25 | 35 |
73R-1, 29 | 4 | 372.69 | Olivine gabbro/gabbro dike | 184.4 | 63.6 | 7.54E+00 | R | 3 | A | 2.8 | 239.3 | –16.7 | 30 | 40 |
73R-1, 108 | 8 | 373.48 | Oxide gabbroic dike | 84.5 | 66.9 | 3.63E–01 | R | 7 | F | 4.5 | 46.5 | –39.4 | 20 | 60 |
73R-2, 70 | 6 | 374.55 | Troctolitic gabbro | 194.8 | 81.5 | 4.08E+00 | R | 4 | A | 5.5 | 67.4 | –42.8 | 25 | 40 |
74R-1, 95 | 7 | 378.15 | Gabbro | 192.6 | 5.9 | 1.68E–01 | R | 10 | F | 1.4 | 185.7 | –41.7 | 20 | 140 |
74R-1, 99 | 7 | 378.19 | Gabbro | 193.1 | 4.9 | 3.62E–01 | R | 6 | F | 1.5 | 198.3 | –42.4 | 550 | 600 |
75R-1, 75 | 5A | 382.75 | Olivine gabbro | 253.2 | 74.9 | 2.44E+00 | R | 5 | F | 2.8 | 319.6 | –41.8 | 20 | 40 |
75R-3, 37 | 3 | 384.89 | Gabbro | 324.5 | –24.3 | 2.93E–01 | R | 12 | F | 5.1 | 324.4 | –43.6 | 10 | 140 |
76R-1, 105 | 4 | 387.95 | Olivine gabbro | 215.7 | 75.9 | 1.22E+00 | N | 9 | F | 5.7 | 256.9 | 33.3 | 520 | 600* |
76R-1, 106 | 4 | 387.96 | Olivine gabbro | 205.6 | 72.3 | 1.24E+00 | R | 4 | F | 2.9 | 280.4 | –39.3 | 25 | 40 |
77R-1, 12 | 2 | 391.82 | Olivine gabbro | 186.6 | 73.7 | 5.38E+00 | R | 5 | F | 4.3 | 227.7 | –27.6 | 20 | 40 |
77R-4, 50 | 2 | 395.82 | Olivine gabbro | 180.3 | 78.6 | 9.18E+00 | D | 20 | F | 2.7 | 178.2 | 77.1 | 0 | 600* |
77R-4, 52 | 2A | 395.84 | Olivine gabbro | 67.1 | 5.6 | 5.45E+00 | R | 5 | F | 3.8 | 352.5 | –29.1 | 15 | 35 |
78R-3, 41 | 2A | 399.64 | Olivine gabbro | 346.9 | 72.7 | 1.64E+00 | R | 5 | F | 3 | 353.8 | –35.0 | 20 | 40 |
Notes: Directions are reported in the core reference frame. Demag = demagnetization. R = reversed polarity, H = polarity uncertain, N = normal polarity, D = drilling-induced magnetization. F = free of origin, A = anchored. MAD = maximum angular deviation. * = not suitable for reorientation studies (poorly defined direction, drilling overprint, or normal polarity of uncertain origin). This table is also available in ASCII.
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