Table T4. Compositions of cumulus olivine.
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%).