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Global Volcanism Program | Image GVP-06221

A nearly circular ring of six Holocene pyroclastic cones occupies the floor of 5-km-wide Sete Cidades caldera.  These have been the source of a dozen trachytic pumice-fall deposits erupted during the past 5000 years.  Three of these forested cones appear in this view from the southern caldera rim, Caldeira Seca (extreme left), Caldeira do Alferes (left-center), and Seara (right center).  The cones were constructed on the caldera floor adjacent to the two lakes of Lagoa Azul (top right) and Lagoa Verde (bottom right).  Photo by Rick Wunderman, 1997 (Smithsonian Institution).

A nearly circular ring of six Holocene pyroclastic cones occupies the floor of 5-km-wide Sete Cidades caldera. These have been the source of a dozen trachytic pumice-fall deposits erupted during the past 5000 years. Three of these forested cones appear in this view from the southern caldera rim, Caldeira Seca (extreme left), Caldeira do Alferes (left-center), and Seara (right center). The cones were constructed on the caldera floor adjacent to the two lakes of Lagoa Azul (top right) and Lagoa Verde (bottom right).

Photo by Rick Wunderman, 1997 (Smithsonian Institution).


Sete Cidades