“…Egmont. Mineralogically, the soil fines contain quartz (<3% in the upper layer), feldspar (present mostly as calcic andesine), andestic glass (with microlites of feldspar, mafic minerals, and titatomagnetite in a glassy matrix), rhyolitic glass, and the mafic minerals augite, hornblende, and hypersthene (Stewart et al, 1977) along with high amorphous clay allophane content ($70% of the clay fraction) (Russell et al, 1981). The presence of iron oxide pans is an additional characteristic feature of the Egmont andisols (Childs et al, 1990).…”