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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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