ID
|
Core, section,
interval (cm) |
Piece
|
Depth
(cm) |
Petrography
|
Plagioclase
|
Olivine
|
Augite
|
Orthopyroxene
|
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
An
(mol%) |
N
|
Standard
deviation |
Fo
(mol%) |
N
|
Standard
deviation |
Mg#
|
N
|
Standard
deviation |
Mg#
|
N
|
Standard
deviation |
|||||
|
179-1105A- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
THY | 1R-2, 23-26 | 1a | 1,631 | Olivine gabbro | 0.524 | 6 | 0.025 | 0.644 | 7 | 0.007 | 0.753 | 10 | 0.016 |
|
|
|
TSB | 1R-2, 88-91 | 2b | 1,696 | Olivine gabbro | 0.527 | 4 | 0.015 | 0.665 | 3 | 0.009 | 0.774 | 4 | 0.026 |
|
|
|
THY | 1R-3, 114-117 | 8b | 1,859 | Olivine gabbro | 0.501 | 4 | 0.018 | 0.633 | 4 | 0.006 | 0.725 | 3 | 0.017 |
|
|
|
TSB | 1R-4, 95-98 | 5 | 1,985 | Olivine gabbro | 0.611 | 7 | 0.048 | 0.736 | 6 | 0.006 | 0.794 | 4 | 0.011 |
|
|
|
TSB | 1R-4, 141-144 | 8 | 2,031 | Gabbro | 0.591 | 4 | 0.012 |
|
|
|
0.780 | 4 | 0.019 |
|
|
|
TSB | 1R-5, 137-141 | 10 | 2,173 | Olivine gabbro | 0.523 | 4 | 0.016 | 0.637 | 5 | 0.003 | 0.747 | 9 | 0.023 |
|
|
|
TSB | 2R-1, 79-82 | 6 | 2,449 | Gabbro | 0.650 | 5 | 0.003 |
|
|
|
0.813 | 5 | 0.026 |
|
|
|
THY | 2R-2, 47-50 | 4 | 2,560 | Olivine gabbro | 0.645 | 7 | 0.001 |
|
|
|
0.808 | 1 |
|
|
|
|
TSB | 3R-1, 51-54 | 3 | 2,921 | Olivine gabbro | 0.625 | 3 | 0.029 |
|
|
|
0.813 | 12 | 0.033 |
|
|
|
TSB | 3R-2, 16-20 | 1b | 3,036 | Olivine gabbro | 0.655 | 5 | 0.027 |
|
|
|
0.835 | 5 | 0.008 |
|
|
|
TSB | 3R-2, 87-91 | 9 | 3,107 | Oxide gabbro | 0.286 | 3 | 0.040 |
|
|
|
0.580 | 5 | 0.034 |
|
|
|
THY | 4R-1, 92-95 | 9 | 3,422 | Oxide gabbro | 0.362 | 4 | 0.008 |
|
|
|
0.600 | 4 | 0.009 |
|
|
|
TSB | 4R-2, 43-46 | 1b | 3,491 | Olivine gabbro | 0.638 | 6 | 0.020 | 0.739 | 6 | 0.002 | 0.838 | 4 | 0.009 |
|
|
|
TSB | 4R-3, 46-60 | 3 | 3,628 | Olivine gabbro | 0.635 | 6 | 0.027 | 0.749 | 4 | 0.003 | 0.825 | 4 | 0.010 |
|
|
|
THY | 4R-4, 47-50 | 6 | 3,769 | Olivine gabbro | 0.497 | 7 | 0.010 | 0.683 | 4 | 0.003 | 0.767 | 7 | 0.018 |
|
|
|
TSB | 4R-4, 57-62 | 7 | 3,779 | Apatite oxide gabbro | 0.302 | 4 | 0.009 |
|
|
|
0.522 | 4 | 0.015 |
|
|
|
THY | 5R-1, 12-16 | 1 | 3,842 | Oxide gabbro (gneissic) | 0.314 | 6 | 0.007 |
|
|
|
0.517 | 5 | 0.011 |
|
|
|
THY | 5R-1, 89-93 | 5 | 3,919 | Gabbro (fine grained) | 0.376 | 4 | 0.098 |
|
|
|
0.721 | 5 | 0.022 |
|
|
|
THY | 5R-1, 89-93 | 5 | 3,919 | Oxide gabbro (medium grained) |
|
|
|
|
|
|
|
|
|
|
|
|
TSB | 5R-1, 115-118 | 7 | 3,945 | Apatite oxide olivine gabbro | 0.304 | 4 | 0.011 |
|
|
|
0.555 | 5 | 0.017 |
|
|
|
TSB | 5R-1, 144-147 | 9 | 3,974 | Apatite oxide olivine gabbro | 0.282 | 4 | 0.002 |
|
|
|
0.540 | 12 | 0.017 |
|
|
|
THY | 5R-2, 4-7 | 2 | 3,982 | Oxide olivine gabbro (gneissic) | 0.296 | 4 | 0.018 | 0.316 | 4 | 0.015 | 0.548 | 5 | 0.011 |
|
|
|
TSB | 5R-2, 55-58 | 6 | 4,033 | Gabbro | 0.528 | 5 | 0.054 |
|
|
|
0.776 | 4 | 0.020 |
|
|
|
THY | 6R-1, 124-128 | 16 | 4,404 | Olivine gabbro, few oxides | 0.542 | 4 | 0.005 |
|
|
|
0.771 | 3 | 0.015 |
|
|
|
TSB | 6R-2, 32-36 | 2 | 4,458 | Olivine gabbro | 0.527 | 5 | 0.052 |
|
|
|
0.730 | 5 | 0.029 |
|
|
|
TSB | 7R-3, 33-36 | 2 | 5,096 | Orthopyroxene apatite oxide gabbro | 0.356 | 6 | 0.025 |
|
|
|
0.575 | 6 | 0.018 | 0.489 | 4 | 0.004 |
THY | 7R-3, 72-76 | 4 | 5,135 | Olivine gabbro | 0.483 | 7 | 0.037 | 0.573 | 5 | 0.081 | 0.767 | 2 |
|
|
|
|
TSB | 7R-4, 30-33 | 7 | 5,212 | Olivine gabbro | 0.464 | 5 | 0.010 | 0.574 | 6 | 0.004 | 0.732 | 4 | 0.014 |
|
|
|
TSB | 8R-1, 68-70 | 7 | 5,308 | Microgabbro (orthopyroxene, oxides) | 0.308 | 5 | 0.014 |
|
|
|
0.623 | 3 | 0.016 | 0.507 | 7 | 0.005 |
TSB | 8R-1, 68-70 | 7 | 5,308 | Gabbro | 0.453 | 5 | 0.082 |
|
|
|
0.637 | 2 |
|
|
|
|
TSB | 8R-3, 53-56 | 4 | 5,508 | Gabbro |
|
|
|
|
|
|
0.762 | 6 | 0.031 |
|
|
|
TSB | 9R-1, 82-86 | 7 | 5,822 | Olivine gabbro | 0.406 | 4 | 0.005 | 0.513 | 4 | 0.003 | 0.671 | 4 | 0.023 |
|
|
|
THY | 9R-2, 85-89 | 11 | 5,975 | Orthopyroxene oxide gabbronorite | 0.369 | 5 | 0.019 |
|
|
|
0.633 | 4 | 0.017 | 0.518 | 3 | 0.008 |
THY | 9R-3, 118-121 | 10a | 6,145 | Oxide gabbro | 0.379 | 4 | 0.011 |
|
|
|
0.577 | 5 | 0.024 |
|
|
|
TSB | 9R-4, 12-16 | 1 | 6,181 | Olivine gabbro | 0.441 | 4 | 0.008 | 0.496 | 6 | 0.006 | 0.647 | 4 | 0.019 |
|
|
|
TSB | 10R-1, 38-42 | 3a | 6,238 | Olivine gabbro | 0.516 | 3 | 0.008 | 0.608 | 4 | 0.004 | 0.750 | 8 | 0.019 |
|
|
|
THY | 10R-2, 38-41 | 4 | 6,373 | Oxide gabbro | 0.353 | 3 | 0.004 |
|
|
|
0.578 | 3 | 0.002 |
|
|
|
TSB | 10R-2, 85-88 | 7 | 6,420 | Oxide gabbro | 0.368 | 4 | 0.018 |
|
|
|
0.573 | 3 | 0.009 |
|
|
|
THY | 11R-2, 18-21 | 2 | 6,858 | Apatite oxide olivine gabbro | 0.330 | 5 | 0.007 | 0.351 | 4 | 0.004 | 0.551 | 5 | 0.019 |
|
|
|
TSB | 11R-2, 51-54 | 7 | 6,891 | Apatite oxide olivine gabbro | 0.324 | 3 | 0.012 | 0.346 | 4 | 0.001 | 0.546 | 4 | 0.024 |
|
|
|
TSB | 11R-2, 129-133 | 12 | 6,969 | Apatite oxide olivine gabbro | 0.308 | 3 | 0.005 | 0.355 | 3 | 0.001 | 0.551 | 4 | 0.029 |
|
|
|
THY | 12R-1, 28-34 | 3 | 7,158 | Oxide olivine gabbro | 0.339 | 6 | 0.004 | 0.358 | 6 | 0.005 | 0.567 | 8 | 0.026 |
|
|
|
TSB | 12R-1, 106-108 | 13 | 7,236 | Olivine gabbro | 0.677 | 7 | 0.011 | 0.735 | 6 | 0.006 | 0.811 | 2 |
|
|
|
|
TSB | 12R-2, 50-53 | 5 | 7,327 | Olivine gabbro | 0.611 | 10 | 0.013 | 0.729 | 4 | 0.006 | 0.820 | 4 | 0.009 |
|
|
|
TSB | 12R-2, 123-127 | 15 | 7,400 | Olivine gabbro (fine grained) | 0.606 | 13 | 0.025 | 0.714 | 2 |
|
0.807 | 2 |
|
|
|
|
TSB | 12R-2, 123-127 | 15 | 7,400 | Olivine gabbro (coarse grained) |
|
|
|
0.714 | 4 | 0.006 | 0.799 | 5 | 0.009 |
|
|
|
TSB | 13R-1, 24-26 | 3a | 7,654 | Microgabbro | 0.458 | 5 | 0.014 |
|
|
|
0.726 | 4 | 0.023 |
|
|
|
TSB | 13R-1, 24-26 | 3a | 7,654 | Olivine gabbro (coarse grained) | 0.507 | 5 | 0.023 | 0.624 | 7 | 0.006 | 0.720 | 4 | 0.033 |
|
|
|
TSB | 13R-1, 87-89 | 3d | 7,717 | Olivine gabbro | 0.500 | 3 | 0.038 | 0.584 | 4 | 0.008 | 0.715 | 4 | 0.025 |
|
|
|
THY | 13R-2, 39-43 | 2 | 7,809 | Oxide gabbro | 0.487 | 3 | 0.041 |
|
|
|
0.553 | 6 | 0.031 |
|
|
|
THY | 13R-2, 83-86 | 3a | 7,853 | Oxide gabbro | 0.406 | 5 | 0.004 |
|
|
|
0.654 | 4 | 0.009 |
|
|
|
TSB | 13R-3, 38-42 | 3 | 7,942 | Olivine gabbro (fine grained) | 0.398 | 4 | 0.021 | 0.497 | 4 | 0.005 | 0.666 | 5 | 0.014 |
|
|
|
TSB | 13R-3, 38-42 | 3 | 7,942 | Oxide olivine gabbro (coarse grained) | 0.419 | 6 | 0.013 | 0.419 | 3 | 0.008 | 0.620 | 3 | 0.010 |
|
|
|
TSB | 13R-3, 79-82 | 6 | 7,983 | Olivine gabbro | 0.611 | 3 | 0.019 | 0.764 | 6 | 0.003 | 0.826 | 3 | 0.001 |
|
|
|
TSB | 14R-1, 42-45 | 3a | 8,142 | Olivine gabbro | 0.662 | 5 | 0.031 | 0.747 | 5 | 0.004 | 0.821 | 4 | 0.010 |
|
|
|
THY | 14R-1, 80-84 | 3c | 8,180 | Oxide gabbro | 0.328 | 4 | 0.015 |
|
|
|
0.562 | 4 | 0.032 |
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|
|
TSB | 14R-3, 91-94 | 7 | 8,455 | Olivine gabbro (foliated) | 0.525 | 3 | 0.075 | 0.586 | 3 | 0.003 | 0.747 | 4 | 0.013 |
|
|
|
THY | 15R-1, 32-36 | 3c | 8,632 | Apatite oxide olivine gabbro (ultramafic) |
|
|
|
|
|
|
0.575 | 4 | 0.022 |
|
|
|
TSB | 15R-1, 113-116 | 13 | 8,713 | Olivine gabbro (fine grained) | 0.612 | 3 | 0.004 | 0.775 | 4 | 0.003 | 0.810 | 4 | 0.012 |
|
|
|
TSB | 15R-1, 113-116 | 13 | 8,713 | Oxide gabbro (coarse grained) | 0.336 | 3 | 0.006 |
|
|
|
|
|
|
|
|
|
TSB | 15R-2, 71-74 | 9a | 8,821 | Microgabbro | 0.352 | 3 | 0.006 | 0.414 | 3 | 0.003 | 0.617 | 4 | 0.005 |
|
|
|
TSB | 15R-3, 83-86 | 8 | 8,980 | Oxide olivine gabbro (gneiss) | 0.324 | 4 | 0.015 | 0.364 | 6 | 0.006 | 0.528 | 4 | 0.037 |
|
|
|
TSB | 16R-1, 56-58 | 4d | 9,116 | Oxide olivine gabbro | 0.360 | 8 | 0.015 |
|
|
|
|
|
|
|
|
|
TSB | 16R-1, 91-94 | 10 | 9,151 | Olivine gabbro (foliated) | 0.520 | 4 | 0.030 | 0.572 | 4 | 0.003 | 0.595 | 5 | 0.007 |
|
|
|
TSB | 16R-2, 14-17 | 2 | 9,207 | Oxide olivine gabbro | 0.332 | 5 | 0.014 |
|
|
|
0.588 | 3 | 0.011 |
|
|
|
TSB | 16R-3, 22-25 | 3 | 9,356 | Olivine gabbro/first component | 0.662 | 4 | 0.007 | 0.755 | 4 | 0.006 | 0.829 | 5 | 0.009 |
|
|
|
TSB | 16R-3, 22-25 | 3 | 9,356 | Olivine gabbro/second component | 0.378 | 7 | 0.021 | 0.390 | 4 | 0.001 | 0.569 | 3 | 0.002 |
|
|
|
THY | 16R-3, 53-56 | 7 | 9,387 | Oxide gabbro | 0.347 | 5 | 0.010 |
|
|
|
0.583 | 5 | 0.029 |
|
|
|
THY | 17R-1, 47-51 | 4 | 9,607 | Oxide olivine gabbro | 0.326 | 6 | 0.002 | 0.406 | 4 | 0.008 | 0.580 | 4 | 0.021 |
|
|
|
TSB | 17R-2, 23-26 | 2 | 9,725 | Olivine gabbro | 0.649 | 4 | 0.004 | 0.748 | 3 | 0.001 | 0.816 | 7 | 0.013 |
|
|
|
TSB | 17R-4, 35-39 | 4 | 10,030 | Oxide olivine gabbro | 0.331 | 3 | 0.011 | 0.394 | 4 | 0.007 | 0.578 | 3 | 0.038 |
|
|
|
THY | 18R-1, 96-100 | 10 | 10,116 | Oxide gabbro | 0.376 | 3 | 0.007 |
|
|
|
0.599 | 8 | 0.034 |
|
|
|
THY | 18R-2, 8-11 | 2 | 10,170 | Oxide gabbro | 0.344 | 3 | 0.003 |
|
|
|
0.581 | 5 | 0.022 |
|
|
|
TSB | 18R-2, 53-57 | 7 | 10,215 | Oxide olivine gabbro | 0.407 | 9 | 0.022 | 0.486 | 9 | 0.016 | 0.654 | 8 | 0.024 |
|
|
|
THY | 19R-1, 85-89 | 6b | 10,605 | Oxide gabbro | 0.414 | 4 | 0.018 |
|
|
|
0.631 | 4 | 0.010 |
|
|
|
TSB | 19R-2, 65-68 | 6 | 10,735 | Olivine gabbro (troctolitic) | 0.451 | 2 |
|
0.497 | 4 | 0.016 | 0.685 | 3 | 0.026 |
|
|
|
TSB | 19R-2, 95-98 | 8a | 10,765 | Oxide gabbro | 0.431 | 3 | 0.008 |
|
|
|
0.657 | 5 | 0.039 |
|
|
|
TSB | 19R-3, 94-97 | 8a | 10,899 | Olivine gabbro | 0.616 | 8 | 0.074 | 0.522 | 15 | 0.011 | 0.753 | 5 | 0.023 |
|
|
|
THY | 20R-1, 46-49 | 6 | 11,026 | Oxide gabbro | 0.359 | 9 | 0.026 |
|
|
|
0.583 | 4 | 0.024 |
|
|
|
TSB | 21R-1, 49-52 | 6 | 11,129 | Olivine gabbro | 0.602 | 3 | 0.045 | 0.676 | 6 | 0.005 | 0.829 | 3 | 0.020 |
|
|
|
THY | 21R-2, 121-125 | 14 | 11,335 | Oxide gabbro | 0.471 | 4 | 0.016 |
|
|
|
0.602 | 5 | 0.030 |
|
|
|
TSB | 22R-1, 103-106 | 15 | 11,613 | Apatite oxide gabbro (mylonite) | 0.341 | 5 | 0.022 |
|
|
|
0.606 | 8 | 0.031 |
|
|
|
THY | 22R-2, 27-30 | 2a | 11,677 | Oxide gabbro | 0.396 | 5 | 0.008 |
|
|
|
0.628 | 4 | 0.012 |
|
|
|
TSB | 22R-2, 74-78 | 5 | 11,724 | Orthopyroxene oxide gabbronorite | 0.356 | 5 | 0.008 |
|
|
|
0.610 | 4 | 0.071 | 0.498 | 3 | 0.012 |
TSB | 22R-3, 130-133 | 8 | 11,898 | Oxide olivine gabbro (fine grained); few oxides | 0.462 | 6 | 0.006 | 0.595 | 4 | 0.008 | 0.717 | 5 | 0.021 |
|
|
|
TSB | 23R-1, 94-98 | 8 | 12,034 | Oxide olivine gabbro (fine grained) | 0.394 | 9 | 0.010 | 0.481 | 4 | 0.002 | 0.652 | 5 | 0.023 |
|
|
|
TSB | 23R-1, 94-98 | 8 | 12,034 | Oxide olivine gabbro (medium grained) | 0.409 | 4 | 0.066 | 0.469 | 4 | 0.004 | 0.626 | 4 | 0.015 |
|
|
|
TSB | 23R-2, 98-101 | 11 | 12,188 | Oxide gabbro | 0.421 | 6 | 0.012 |
|
|
|
0.601 | 4 | 0.065 |
|
|
|
TSB | 24R-1, 32-36 | 3b | 12,472 | Oxide olivine gabbro, very few oxides | 0.433 | 18 | 0.031 | 0.584 | 13 | 0.028 | 0.699 | 9 | 0.015 |
|
|
|
THY | 24R-3, 74-77 | 6 | 12,790 | Oxide gabbro | 0.432 | 5 | 0.003 |
|
|
|
0.641 | 9 | 0.006 |
|
|
|
TSB | 25R-1, 26-30 | 2 | 12,926 | Oxide gabbro (fine grained) | 0.363 | 6 | 0.011 |
|
|
|
0.619 | 5 | 0.007 |
|
|
|
TSB | 25R-1, 26-30 | 2 | 12,926 | Oxide gabbro (coarse grained) | 0.355 | 3 | 0.001 |
|
|
|
0.614 | 5 | 0.001 |
|
|
|
TSB | 25R-1, 133-137 | 5c | 13,033 | Oxide olivine gabbro | 0.357 | 8 | 0.022 | 0.495 | 1 |
|
0.583 | 4 | 0.028 |
|
|
|
THY | 25R-2, 18-21 | 1 | 13,062 | Oxide olivine gabbro | 0.414 | 8 | 0.063 | 0.402 | 4 | 0.006 | 0.592 | 3 | 0.001 |
|
|
|
TSB | 25R-3, 10-13 | 1 | 13,193 | Oxide gabbro (mylonitic) | 0.409 | 5 | 0.008 |
|
|
|
0.628 | 4 | 0.001 |
|
|
|
THY | 26R-1, 50-54 | 2 | 13,450 | Orthopyroxene apatite oxide gabbro | 0.357 | 6 | 0.029 |
|
|
|
0.514 | 4 | 0.005 | 0.507 | 4 | 0.005 |
TSB | 26R-3, 80-81 | 5 | 13,756 | Olivine gabbro | 0.585 | 5 | 0.034 | 0.687 | 4 | 0.002 | 0.805 | 4 | 0.009 |
|
|
|
TSB | 27R-1, 27-28 | 1a | 13,897 | Olivine gabbro | 0.595 | 4 | 0.041 | 0.720 | 4 | 0.003 | 0.822 | 6 | 0.020 |
|
|
|
THY | 27R-1, 71-75 | 3 | 13,941 | Orthopyroxene apatite oxide biotite gabbro | 0.328 | 5 | 0.007 |
|
|
|
|
|
|
0.481 | 4 | 0.007 |
TSB | 27R-3, 93-94 | 2 | 14,195 | Olivine gabbro (anorthositic); olivine interstitial | 0.621 | 4 | 0.004 | 0.529 | 6 | 0.005 | 0.820 | 4 | 0.016 |
|
|
|
TSB | 28R-1, 98-99 | 3b | 14,468 | Olivine gabbro | 0.607 | 7 | 0.027 | 0.700 | 5 | 0.001 | 0.777 | 8 | 0.008 |
|
|
|
TSB | 29R-1, 102-106 | 4 | 14,942 | Olivine gabbro (mylonitic) | 0.515 | 6 | 0.015 | 0.640 | 4 | 0.008 | 0.791 | 7 | 0.027 |
|
|
|
TSB | 29R-3, 112-114 | 3 | 15,221 | Oxide olivine gabbro | 0.424 | 18 | 0.013 | 0.509 | 10 | 0.004 | 0.662 | 24 | 0.023 |
|
|
|
THY | 29R-4, 13-17 | 1 | 15,253 | Oxide gabbro | 0.369 | 5 | 0.009 |
|
|
|
0.612 | 6 | 0.033 |
|
|
|
TSB | 29R-4, 31-33 | 2 | 15,271 | Oxide gabbro | 0.348 | 3 | 0.001 |
|
|
|
0.641 | 4 | 0.005 |
|
|
|
TSB | 30R-1, 27-31 | 3a | 15,367 | Oxide gabbro | 0.374 | 10 | 0.010 |
|
|
|
0.662 | 3 | 0.007 |
|
|
|
TSB | 30R-2, 109-113 | 8 | 15,585 | Oxide gabbro (fine grained) | 0.407 | 3 | 0.012 |
|
|
|
0.653 | 4 | 0.011 |
|
|
|
TSB | 30R-3, 102-106 | 9 | 15,712 | Olivine gabbro | 0.544 | 3 | 0.008 | 0.598 | 4 | 0.001 | 0.724 | 4 | 0.009 |
|
|
|
Notes: ID = shipboard sample codes. An = anorthite. Fo = forsterite. Mg# = Mg/(Mg+Fe) with iron as total FeO. N = number of analyses used for each average.