Figure F80. Modal proportions of olivine, pyroxenes (clino- and orthopyroxene), and plagioclase in gabbros from Expedition 305. The modal proportions used for the classification of (olivine-bearing) gabbro, troctolite and troctolitic gabbro, and olivine-rich troctolite are highlighted for Cores 305-U1309D-80R through 295R in the box area. See Figure F65 for the upper part of the hole (Expedition 304). Blue = gabbro, purple = troctolite and troctolitic gabbro, green = olivine-rich troctolite; all others are classified as olivine gabbro. Py = pyroxene, Pl = plagioclase, Ol = olivine.
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