Figure F24. Photomicrograph of the olivine basalt characteristic of Unit VI (Sample 194-1194B-34R-4, 65 cm). Olivine phenocrysts (a) are located in a plagioclase matrix (b).

Figure F24. Photomicrograph of the olivine basalt characteristic of Unit VI (Sample 194-1194B-34R-4, 65 cm). Olivine phenocrysts (a) are located in a plagioclase matrix (b).