Vertical joints in Oligo-Miocenic Andesite of the Castello di Acquafredda vulcanic dome, SW Sardinia. Joints are related to cooling of the lava flow and appear to be orthogonal to the cooling surface.
BERTOLIO S. (1895) – Sur le massif volcanique de Siliqua (Sardaigne meridionale). Bull. Soc. géol. France: 23, Paris.
MINUCCI E. (1935) – La regione vulcanica del Cixerri in Sardegna. Boll. R. Uff. Geol. d’It.: 60, 1-124, Roma.
Vertical joints in Oligo-Miocenic Andesite of the Castello di Acquafredda vulcanic dome, SW Sardinia. Joints are related to cooling of the lava flow and appear to be orthogonal to the cooling surface.
BERTOLIO S. (1895) – Sur le massif volcanique de Siliqua (Sardaigne meridionale). Bull. Soc. géol. France: 23, Paris.
MINUCCI E. (1935) – La regione vulcanica del Cixerri in Sardegna. Boll. R. Uff. Geol. d’It.: 60, 1-124, Roma.
Photograph: F.Milazzo