Cerro de las Cuevas
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21°35′S 68°29′W / 21.583°S 68.483°W[1] Cerro de las Cuevas is a 5,294-metre-high (17,369 ft) volcano in the Andes.[1]
The volcano is formed by thick lava flows that surround a lava dome. A spatter cone is also found on the northeastern flank of the volcano.[1]
The volcano is made of andesite. Lava flows contain clinopyroxene, olivine and quartz, the latter in the form of xenocrysts; rocks on the spatter cone are aphyric.[1]
A line of volcanoes extends from Cerro Cebollar to Cerro Palpana in south–north direction, of which Cerro de las Cuevas is the youngest volcano. Potassium-argon dating of the spatter cone on the northeastern flank of the volcano has yielded ages of 3.15±0.15 and 3.36±0.13 million before present.[2]
