Table T3 (continued). (Continued on next page.)
Rock type | Fraction of core | Number of intervals | Details | |||
Mode | ||||||
% | Plagioclase | Clinopyroxene | Olivine | |||
Oxide gabbronorite | 2.7 vol% | 10 | Average | 54 | 36 | 1 |
and ortho- pyroxene-bearing oxide gabbro | Maximum | 60 | 45 | 3 | ||
Minimum | 45 | 30 | 0 | |||
Grain size | ||||||
mm | Plagioclase | Clinopyroxene | Olivine | |||
Avg max/1 SD | 22/13 | 27/18 | 2/3 | |||
Avg min/1 SD | 4/2 | 3/3 | 1/1 | |||
Chemical composition (eight analyses) | ||||||
Wt % | SiO2 | TiO2 | Al2O3 | |||
Average | 46.38 | 3.13 | 12.53 | |||
Standard deviation | 4.29 | 1.1 | 3.2 | |||
Maximum | 53.25 | 5.71 | 18.55 | |||
Minimum | 40.44 | 1.84 | 8.45 | |||
Mode | ||||||
% | Plagioclase | Clinopyroxene | Olivine | |||
Oxide gabbro | 4.5 vol% | 100 | Average | 60 | 30 | 3 |
and disseminated oxide gabbro | Maximum | 80 | 50 | 20 | ||
Minimum | 30 | 5 | 0 | |||
Grain size | ||||||
mm | Plagioclase | Clinopyroxene | Olivine | |||
Avg max/1 SD | 16/7 | 22/13 | 3/4 | |||
Avg min/1 SD | 4/3 | 3/4 | 1/0 | |||
Chemical composition (four analyses) | ||||||
Wt % | SiO2 | TiO2 | Al2O3 | |||
Average | 45.53 | 4.1 | 12.12 | |||
Standard deviation | 1.17 | 0.7 | 1.53 | |||
Maximum | 46.85 | 5.31 | 14.27 | |||
Minimum | 44.07 | 3.62 | 10.31 | |||
Mode | ||||||
% | Plagioclase | Clinopyroxene | Olivine | |||
Clinopyroxenite | 0.04 vol% | 5 | Average | 6 | 85 | 7 |
Maximum | 10 | 93 | 9 | |||
Minimum | 5 | 70 | 3 | |||
Grain size | ||||||
mm | Plagioclase | Clinopyroxene | Olivine | |||
Avg max/1 SD | 8/2 | 26/6 | 3/2 | |||
Avg min/1 SD | 3/1 | 5/3 | 1/0 | |||
Chemical composition (two analyses) | ||||||
Wt % | SiO2 | TiO2 | Al2O3 | |||
Average | 49.99 | 1.27 | 7.18 | |||
Standard deviation | 0.47 | 0.87 | 1.27 | |||
Maximum | 50.47 | 2.15 | 8.45 | |||
Minimum | 49.52 | 0.4 | 5.91 | |||
Mode | ||||||
% | Plagioclase | Clinopyroxene | Olivine | |||
Microgabbro | 2.4 vol% | 49 | Average | 62 | 23 | 15 |
Maximum | 75 | 40 | 40 | |||
Minimum | 45 | 0 | 4 | |||
Grain size | ||||||
mm | Plagioclase | Clinopyroxene | Olivine | |||
Avg max/1 SD | 7/6 | 12/18 | 4/4 | |||
Avg min/1 SD | 1/1 | 1/1 | 1/0 | |||
Chemical composition (10 analyses) - includes two FeTi oxide gabbros, one gabbro, and seven olivine gabbros | ||||||
Wt% | SiO2 | TiO2 | Al2O3 | |||
Average | 51.6 | 0.49 | 17.01 | |||
Standard deviation | 0.87 | 0.38 | 1.08 | |||
Maximum | 52.95 | 1.38 | 19.53 | |||
Minimum | 50.22 | 0.17 | 15.95 | |||