ID
|
Core, section,
interval (cm) |
Piece
|
Depth
(cm) |
Petrography
|
N
|
Major element oxide (wt%)
|
Mg#
|
|||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SiO2
|
FeO
|
MnO
|
MgO
|
CaO
|
Cr2O3
|
NiO
|
Total
|
|||||||
|
179-1105A- |
|
|
|
|
|
|
|
|
|
|
|
|
|
TSB | 1R-2, 88-91 | 2b | 1,696 | Olivine gabbro | 3 | 37.11 | 30.52 | 0.44 | 34.00 | 0.05 | 0.04 | 0.10 | 102.25 | 0.665 |
|
|
|
|
|
|
0.17 | 1.11 | 0.06 | 0.14 | 0.01 | 0.07 | 0.10 |
|
0.009 |
THY | 1R-3, 114-117 | 8b | 1,859 | Olivine gabbro | 4 | 37.23 | 33.13 | 0.48 | 31.65 | 0.06 | 0.02 | 0.08 | 102.65 | 0.630 |
|
|
|
|
|
|
0.29 | 0.19 | 0.05 | 0.17 | 0.02 | 0.03 | 0.07 |
|
0.000 |
TSB | 1R-4, 95-98 | 5 | 1,985 | Olivine gabbro | 6 | 38.11 | 24.20 | 0.36 | 37.92 | 0.07 | 0.03 | 0.10 | 100.81 | 0.736 |
|
|
|
|
|
|
0.14 | 0.72 | 0.05 | 0.19 | 0.02 | 0.03 | 0.08 |
|
0.006 |
TSB | 1R-5, 137-141 | 10 | 2,173 | Olivine gabbro | 5 | 36.35 | 32.62 | 0.49 | 32.16 | 0.07 | 0.02 | 0.05 | 101.77 | 0.637 |
|
|
|
|
|
|
0.29 | 0.27 | 0.03 | 0.28 | 0.02 | 0.02 | 0.07 |
|
0.003 |
TSB | 4R-2, 43-46 | 1b | 3,491 | Olivine gabbro | 6 | 38.07 | 24.16 | 0.34 | 38.46 | 0.09 | 0.01 | 0.12 | 101.25 | 0.739 |
|
|
|
|
|
|
0.30 | 0.30 | 0.06 | 0.14 | 0.02 | 0.01 | 0.09 |
|
0.002 |
TSB | 4R-3, 46-60 | 3 | 3,628 | Olivine gabbro | 4 | 38.58 | 23.65 | 0.35 | 39.58 | 0.05 | 0.01 | 0.20 | 102.41 | 0.749 |
|
|
|
|
|
|
0.19 | 0.45 | 0.02 | 0.21 | 0.04 | 0.01 | 0.04 |
|
0.003 |
THY | 4R-4, 47-50 | 6 | 3,769 | Olivine gabbro | 4 | 38.66 | 29.21 | 0.45 | 35.36 | 0.07 | 0.01 | 0.02 | 103.79 | 0.683 |
|
|
|
|
|
|
0.24 | 0.37 | 0.04 | 0.19 | 0.02 | 0.02 | 0.02 |
|
0.003 |
THY | 5R-2, 4-7 | 2 | 3,982 | Oxide olivine gabbro (gneissic) | 4 | 32.65 | 54.31 | 1.13 | 14.09 | 0.12 | 0.02 | 0.04 | 102.36 | 0.316 |
|
|
|
|
|
|
1.22 | 0.51 | 0.09 | 0.86 | 0.03 | 0.02 | 0.06 |
|
0.015 |
THY | 7R-3, 72-76 | 4 | 5,135 | Olivine gabbro | 4 | 36.60 | 40.74 | 0.63 | 26.42 | 0.04 | 0.02 | 0.04 | 104.49 | 0.536 |
|
|
|
|
|
|
0.22 | 0.40 | 0.11 | 0.19 | 0.03 | 0.03 | 0.04 |
|
0.004 |
TSB | 7R-4, 30-33 | 7 | 5,212 | Olivine gabbro | 6 | 35.75 | 36.92 | 0.53 | 27.86 | 0.02 | 0.02 | 0.05 | 101.16 | 0.574 |
|
|
|
|
|
|
0.16 | 0.46 | 0.04 | 0.26 | 0.02 | 0.02 | 0.07 |
|
0.004 |
TSB | 9R-1, 82-86 | 7 | 5,822 | Olivine gabbro | 4 | 34.63 | 41.66 | 0.71 | 24.59 | 0.07 | 0.03 | 0.03 | 101.71 | 0.513 |
|
|
|
|
|
|
0.32 | 0.58 | 0.11 | 0.35 | 0.02 | 0.02 | 0.03 |
|
0.003 |
TSB | 9R-4, 12-16 | 1 | 6,181 | Olivine gabbro | 6 | 35.63 | 43.10 | 0.70 | 23.77 | 0.06 | 0.01 | 0.02 | 103.29 | 0.496 |
|
|
|
|
|
|
0.18 | 0.80 | 0.05 | 0.21 | 0.03 | 0.01 | 0.02 |
|
0.006 |
TSB | 10R-1, 38-42 | 3a | 6,238 | Olivine gabbro | 4 | 36.11 | 34.56 | 0.51 | 30.10 | 0.05 | 0.04 | 0.04 | 101.42 | 0.608 |
|
|
|
|
|
|
0.10 | 0.30 | 0.11 | 0.31 | 0.04 | 0.06 | 0.03 |
|
0.004 |
THY | 11R-2, 18-21 | 2 | 6,858 | Apatite Oxide olivine gabbro | 4 | 33.39 | 50.52 | 0.99 | 15.33 | 0.12 | 0.02 | 0.03 | 100.40 | 0.351 |
|
|
|
|
|
|
0.16 | 0.39 | 0.10 | 0.19 | 0.04 | 0.03 | 0.03 |
|
0.004 |
TSB | 11R-2, 51-54 | 7 | 6,891 | Apatite Oxide olivine gabbro | 4 | 32.70 | 52.93 | 1.02 | 15.70 | 0.11 | 0.00 | 0.07 | 102.53 | 0.346 |
|
|
|
|
|
|
0.06 | 0.66 | 0.09 | 0.19 | 0.04 | 0.00 | 0.05 |
|
0.001 |
TSB | 11R-2, 129-133 | 12 | 6,969 | Apatite Oxide olivine gabbro | 3 | 33.71 | 52.21 | 0.97 | 16.13 | 0.12 | 0.01 | 0.01 | 103.16 | 0.355 |
|
|
|
|
|
|
0.23 | 0.62 | 0.09 | 0.14 | 0.04 | 0.01 | 0.01 |
|
0.001 |
THY | 12R-1, 28-34 | 3 | 7,158 | Oxide olivine gabbro | 6 | 33.88 | 52.52 | 0.99 | 16.46 | 0.10 | 0.02 | 0.03 | 103.99 | 0.358 |
|
|
|
|
|
|
0.18 | 0.44 | 0.08 | 0.24 | 0.02 | 0.03 | 0.03 |
|
0.005 |
TSB | 12R-1, 106-108 | 13 | 7,236 | Olivine gabbro | 6 | 37.01 | 24.07 | 0.31 | 37.49 | 0.09 | 0.01 | 0.06 | 99.03 | 0.735 |
|
|
|
|
|
|
2.00 | 0.43 | 0.05 | 0.92 | 0.01 | 0.02 | 0.05 |
|
0.006 |
TSB | 12R-2, 50-53 | 5 | 7,327 | Olivine gabbro | 4 | 38.60 | 25.13 | 0.34 | 37.95 | 0.03 | 0.02 | 0.05 | 102.10 | 0.729 |
|
|
|
|
|
|
0.18 | 0.78 | 0.04 | 0.34 | 0.02 | 0.02 | 0.07 |
|
0.006 |
TSB | 12R-2, 123-127 | 15 | 7,400 | Olivine gabbro (fine grained) | 2 | 38.23 | 26.00 | 0.31 | 36.33 | 0.05 | 0.04 | 0.07 | 101.04 | 0.714 |
TSB | 12R-2, 123-127 | 15 | 7,400 | Olivine gabbro (coarse grained) | 4 | 37.51 | 26.20 | 0.32 | 36.75 | 0.04 | 0.01 | 0.06 | 100.89 | 0.714 |
|
|
|
|
|
|
0.79 | 0.54 | 0.05 | 0.49 | 0.02 | 0.01 | 0.04 |
|
0.006 |
TSB | 13R-1, 24-26 | 3a | 7,654 | Olivine gabbro (coarse grained) | 7 | 36.55 | 33.88 | 0.42 | 31.60 | 0.08 |
|
0.04 | 102.56 | 0.624 |
|
|
|
|
|
|
0.39 | 0.49 | 0.10 | 0.35 | 0.04 |
|
0.04 |
|
0.006 |
TSB | 13R-1, 87-89 | 3d | 7,717 | Olivine gabbro | 4 | 35.99 | 36.26 | 0.49 | 28.61 | 0.09 | 0.02 | 0.06 | 101.52 | 0.584 |
|
|
|
|
|
|
0.90 | 0.83 | 0.07 | 0.34 | 0.00 | 0.03 | 0.04 |
|
0.008 |
TSB | 13R-3, 38-42 | 3 | 7,942 | Olivine gabbro (fine grained) | 4 | 34.26 | 43.08 | 0.58 | 23.90 | 0.06 |
|
0.04 | 101.91 | 0.497 |
|
|
|
|
|
|
0.37 | 0.38 | 0.06 | 0.30 | 0.02 |
|
0.03 |
|
0.005 |
TSB | 13R-3, 38-42 | 3 | 7,942 | Oxide olivine gabbro (coarse grained) | 3 | 33.27 | 47.29 | 0.53 | 19.12 | 0.06 |
|
0.04 | 100.31 | 0.419 |
|
|
|
|
|
|
0.91 | 0.53 | 0.01 | 0.75 | 0.04 |
|
0.06 |
|
0.008 |
TSB | 13R-3, 79-82 | 6 | 7,983 | Olivine gabbro | 6 | 39.13 | 22.25 | 0.23 | 40.40 | 0.04 | 0.00 | 0.06 | 102.12 | 0.764 |
|
|
|
|
|
|
0.24 | 0.29 | 0.07 | 0.45 | 0.02 | 0.00 | 0.04 |
|
0.003 |
TSB | 14R-1, 42-45 | 3a | 8,142 | Olivine gabbro | 5 | 37.35 | 23.71 | 0.27 | 39.27 | 0.05 | 0.01 | 0.07 | 100.73 | 0.747 |
|
|
|
|
|
|
0.56 | 0.27 | 0.02 | 0.47 | 0.03 | 0.01 | 0.07 |
|
0.004 |
TSB | 14R-3, 91-94 | 7 | 8,455 | Olivine gabbro (foliated) | 3 | 35.54 | 36.84 | 0.47 | 29.29 | 0.04 | 0.04 | 0.03 | 102.26 | 0.586 |
|
|
|
|
|
|
0.41 | 0.24 | 0.02 | 0.23 | 0.02 | 0.03 | 0.02 |
|
0.002 |
TSB | 15R-1, 113-116 | 13 | 8,713 | Olivine gabbro (fine grained) | 4 | 38.18 | 24.68 | 0.27 | 38.46 | 0.04 | 0.02 | 0.08 | 101.74 | 0.735 |
|
|
|
|
|
|
0.51 | 0.38 | 0.03 | 0.39 | 0.02 | 0.02 | 0.06 |
|
0.003 |
TSB | 15R-2, 71-74 | 9a | 8,821 | microgabbro | 3 | 33.96 | 49.26 | 0.70 | 19.51 | 0.06 | 0.01 | 0.02 | 103.52 | 0.414 |
|
|
|
|
|
|
0.35 | 0.35 | 0.09 | 0.14 | 0.01 | 0.01 | 0.03 |
|
0.003 |
TSB | 15R-3, 83-86 | 8 | 8,980 | Oxide olivine gabbro (gneiss) | 6 | 33.16 | 52.23 | 0.82 | 16.75 | 0.09 | 0.01 | 0.00 | 103.07 | 0.364 |
|
|
|
|
|
|
0.55 | 0.60 | 0.08 | 0.27 | 0.03 | 0.02 | 0.01 |
|
0.006 |
TSB | 16R-1, 91-94 | 10 | 9,151 | Olivine gabbro (foliated) | 4 | 35.69 | 37.64 | 0.54 | 28.21 | 0.04 | 0.01 | 0.04 | 102.16 | 0.572 |
|
|
|
|
|
|
0.58 | 0.34 | 0.04 | 0.36 | 0.01 | 0.02 | 0.02 |
|
0.003 |
TSB | 16R-3, 22-25 | 3 | 9,356 | Olivine gabbro | 4 | 38.55 | 22.66 | 0.31 | 39.20 | 0.03 | 0.00 | 0.03 | 100.78 | 0.755 |
|
|
|
|
|
|
0.51 | 0.69 | 0.05 | 0.46 | 0.00 | 0.00 | 0.04 |
|
0.006 |
TSB | 16R-3, 22-25 | 3 | 9,356 | Olivine gabbro | 4 | 33.04 | 50.03 | 0.68 | 17.97 | 0.08 | 0.01 | 0.03 | 101.84 | 0.390 |
|
|
|
|
|
|
0.20 | 0.34 | 0.06 | 0.21 | 0.02 | 0.01 | 0.03 |
|
0.001 |
THY | 17R-1, 47-51 | 4 | 9,607 | Oxide olivine gabbro | 4 | 34.35 | 49.19 | 1.00 | 18.84 | 0.09 | 0.01 | 0.01 | 103.49 | 0.406 |
|
|
|
|
|
|
0.18 | 1.11 | 0.10 | 0.40 | 0.01 | 0.02 | 0.01 |
|
0.008 |
TSB | 17R-2, 23-26 | 2 | 9,725 | Olivine gabbro | 3 | 38.71 | 23.58 | 0.28 | 39.35 | 0.11 | 0.02 | 0.03 | 102.07 | 0.748 |
|
|
|
|
|
|
0.47 | 0.23 | 0.08 | 0.14 | 0.03 | 0.02 | 0.03 |
|
0.001 |
TSB | 17R-4, 35-39 | 4 | 10,030 | Oxide olivine gabbro | 4 | 33.52 | 50.35 | 0.77 | 18.64 | 0.08 | 0.03 | 0.04 | 103.43 | 0.398 |
|
|
|
|
|
|
0.47 | 0.43 | 0.05 | 0.45 | 0.03 | 0.02 | 0.03 |
|
0.007 |
TSB | 18R-2, 53-57 | 7 | 10,215 | Oxide olivine gabbro | 9 | 34.31 | 44.21 | 0.66 | 23.48 | 0.08 | 0.02 | 0.01 | 102.77 | 0.486 |
|
|
|
|
|
|
0.84 | 1.27 | 0.10 | 0.85 | 0.03 | 0.03 | 0.02 |
|
0.016 |
TSB | 19R-2, 65-68 | 6 | 10,735 | Olivine gabbro (troctolitic) | 4 | 32.86 | 42.37 | 0.60 | 23.52 | 0.67 | 0.03 | 0.03 | 100.07 | 0.497 |
|
|
|
|
|
|
0.71 | 0.77 | 0.09 | 1.23 | 1.15 | 0.04 | 0.03 |
|
0.020 |
TSB | 19R-3, 94-97 | 8a | 10,899 | Olivine gabbro | 15 | 32.81 | 41.04 | 0.58 | 25.18 | 0.08 | 0.02 | 0.03 | 99.74 | 0.522 |
|
|
|
|
|
|
2.43 | 0.66 | 0.08 | 0.87 | 0.03 | 0.02 | 0.03 |
|
0.011 |
TSB | 21R-1, 49-52 | 6 | 11,129 | Olivine gabbro | 6 | 37.66 | 29.41 | 0.39 | 34.50 | 0.05 | 0.01 | 0.07 | 102.09 | 0.676 |
|
|
|
|
|
|
0.57 | 0.40 | 0.05 | 0.38 | 0.02 | 0.02 | 0.05 |
|
0.005 |
TSB | 22R-3, 130-133 | 8 | 11,898 | Oxide olivine gabbro (fine grained); few oxides | 4 | 35.71 | 36.25 | 0.52 | 29.92 | 0.07 | 0.00 | 0.03 | 102.51 | 0.595 |
|
|
|
|
|
|
0.81 | 0.48 | 0.10 | 0.65 | 0.03 | 0.00 | 0.04 |
|
0.008 |
TSB | 23R-1, 94-98 | 8 | 12,034 | Oxide olivine gabbro (fine grained) | 4 | 34.07 | 44.37 | 0.66 | 23.03 | 0.03 | 0.02 | 0.01 | 102.20 | 0.481 |
|
|
|
|
|
|
0.19 | 0.28 | 0.04 | 0.23 | 0.02 | 0.02 | 0.02 |
|
0.002 |
TSB | 23R-1, 94-98 | 8 | 12,034 | Oxide olivine gabbro (medium grained) | 4 | 34.02 | 45.80 | 0.72 | 22.71 | 0.04 | 0.02 | 0.02 | 103.33 | 0.469 |
|
|
|
|
|
|
0.15 | 0.51 | 0.07 | 0.25 | 0.03 | 0.02 | 0.02 |
|
0.004 |
TSB | 24R-1, 32-36 | 3b | 12,472 | Oxide olivine gabbro | 13 | 34.39 | 39.20 | 0.59 | 26.69 | 0.06 | 0.03 | 0.03 | 100.98 | 0.548 |
|
|
|
|
|
|
1.71 | 1.87 | 0.05 | 1.72 | 0.03 | 0.03 | 0.03 |
|
0.028 |
TSB | 25R-1, 133-137 | 5c | 13,033 | Oxide olivine gabbro | 1 | 31.75 | 42.43 | 0.76 | 23.29 | 0.05 | 0.06 | 0.03 | 98.37 | 0.495 |
THY | 25R-2, 18-21 | 1 | 13,062 | Oxide olivine gabbro | 4 | 34.36 | 49.23 | 0.94 | 18.57 | 0.09 | 0.01 | 0.03 | 103.22 | 0.402 |
|
|
|
|
|
|
0.24 | 0.45 | 0.13 | 0.34 | 0.04 | 0.01 | 0.03 |
|
0.006 |
TSB | 26R-3, 80-81 | 5 | 13,756 | Olivine gabbro | 4 | 36.93 | 28.72 | 0.42 | 35.35 | 0.05 | 0.01 | 0.08 | 101.58 | 0.687 |
|
|
|
|
|
|
0.24 | 0.48 | 0.08 | 0.49 | 0.04 | 0.01 | 0.03 |
|
0.002 |
TSB | 27R-1, 27-28 | 1a | 13,897 | Olivine gabbro | 4 | 36.29 | 25.70 | 0.40 | 37.07 | 0.06 | 0.02 | 0.03 | 99.56 | 0.720 |
|
|
|
|
|
|
0.54 | 0.39 | 0.04 | 0.17 | 0.02 | 0.02 | 0.03 |
|
0.003 |
TSB | 27R-3, 93-94 | 2 | 14,195 | Olivine gabbro (anorthositic) | 6 | 34.91 | 40.70 | 0.72 | 25.64 | 0.04 | 0.04 | 0.05 | 102.12 | 0.529 |
|
|
|
|
|
|
0.06 | 0.68 | 0.07 | 0.33 | 0.02 | 0.05 | 0.05 |
|
0.005 |
TSB | 28R-1, 98-99 | 3b | 14,468 | Olivine gabbro | 5 | 37.45 | 27.75 | 0.39 | 36.38 | 0.09 | 0.02 | 0.06 | 102.14 | 0.700 |
|
|
|
|
|
|
0.25 | 0.11 | 0.08 | 0.28 | 0.01 | 0.02 | 0.04 |
|
0.001 |
TSB | 29R-1, 102-106 | 4 | 14,942 | Olivine gabbro (mylonitic) | 4 | 36.67 | 32.36 | 0.49 | 32.26 | 0.05 | 0.03 | 0.03 | 101.90 | 0.640 |
|
|
|
|
|
|
0.18 | 0.99 | 0.10 | 0.09 | 0.04 | 0.03 | 0.03 |
|
0.008 |
TSB | 29R-3, 112-114 | 3 | 15,221 | Oxide olivine gabbro | 10 | 34.67 | 42.47 | 0.61 | 24.68 | 0.06 | 0.02 | 0.01 | 102.51 | 0.509 |
|
|
|
|
|
|
0.29 | 0.33 | 0.12 | 0.40 | 0.03 | 0.02 | 0.01 |
|
0.004 |
TSB | 30R-3, 102-106 | 9 | 15,712 | Olivine gabbro | 4 | 35.41 | 36.24 | 0.58 | 30.20 | 0.04 | 0.01 | 0.02 | 102.49 | 0.598 |
|
|
|
|
|
|
0.66 | 0.15 | 0.05 | 0.13 | 0.01 | 0.01 | 0.03 |
|
0.001 |
Notes: ID = shipboard sample codes. The first line for each sample is the average, and the second line is the standard deviation of analyses. N = the number of analyses used for each average. Mg# = forsterite content (Fo mol%).