The Cerro Morado volcanic field is located in northwestern Argentina, in the Jujuy Province.
[3] The frontier with Chile lies approximately 30 kilometres (19 mi) west of the volcanic field.
[8] These cones are frequently aligned and an average diameter of 0.7 kilometres (0.43 mi) and the heights range 15–65 metres (49–213 ft).
[10] The volcanic field is dominated by a plateau made of lobate lava flows, typically having thicknesses of 5–18 metres (16–59 ft).
[11] Various layers of lava flows lie on top of each other and on the basement, and pyroclastic deposits can also be found.
[13] Minerals found in the rocks include bytownite, clinopyroxene, iron-titanium oxides, labradorite, orthopyroxene and plagioclase.
[3] The field was formed by energetic effusive eruptions; lava supply rates of up to 20 cubic metres per second (710 cu ft/s) and an emplacement time of 84-18 months for the northern and 48-7 months for the southern parts of the field have been estimated.