Table T2. Average modal compositions of gabbroic rocks determined by visual estimates from thin sections, Hole U1309B.
Rock type | N | Modal composition (%) | ||
---|---|---|---|---|
Plagioclase | Olivine | Clinopyroxene | ||
Troctolite | 3 | 61.0 | 38.3 | 0.7 |
Troctolitic gabbro | 3 | 74.6 | 18.5 | 7.0 |
Olivine gabbro | 4 | 62.3 | 21.5 | 16.3 |
Olivine-bearing gabbro | 4 | 68.0 | 3.1 | 28.9 |
Gabbro | 17 | 56.1 | 0.0 | 43.9 |
Notes: N = number of samples. This table is also available in ASCII.
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