Sample 36MW1036 is an olivine phyric vesicular
basalt composed of plagioclase (60%), clinopyroxene (30%), chlorite
(5%), and oxides (5%). 0.5 to 1-mm vesicles, as well as relict olivine
phenocrysts, are filled with/replaced by chlorite. Plagioclase is turgid
and occurs as bladed crystals. Oxides are probably magnetite or
titanomagnetite. |