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Atitlán volcano

Background:

Volcán Atitlán is one of several prominent conical stratovolcanoes in the Guatemalan highlands. Along with its twin volcano Tolimán to the north, it forms a dramatic backdrop to Lake Atitlán, one of the scenic highlights of the country. The 3535-m-high summit of Atitlán directly overlies the inferred margin of the Pleistocene Atitlán III caldera and is the highest of three large post-caldera stratovolcanoes constructed near the southern caldera rim. The volcano consequently post-dates the eruption of the voluminous, roughly 85,000-year-old rhyolitic Los Chocoyos tephra associated with formation of the Atitlán III caldera. The historically active andesitic Volcán Atitlán is younger than Tolimán, although their earlier activity overlapped. In contrast to Tolimán, Atitlán displays a thick pyroclastic cover. The northern side of the volcano is wooded to near the summit, whereas the upper 1000 m of the southern slopes are unvegetated. Predominantly explosive eruptions have been recorded from Volcán Atitlán since the 15th century.
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Smithsonian / GVP volcano information

Atitlán Fotos:

Volcanes Atitln, Tolimán y San Pedro (Photo: Tom Pfeiffer)	Temprano en la mañana en la orilla del lago de Atitln con Atitln, Tolimán y San Pedro volcanes en el fondo (Photo: Tom Pfeiffer)	Volcanes Tolimán y Atitln visto desde la orilla del lago Atitln (Photo: Tom Pfeiffer)
Salida del sol sobre el lago Atitln con Atitln Tolimán y volcanes en el fondo (Photo: Tom Pfeiffer)	Volcanes Atitlán y Tolimán (Photo: Tom Pfeiffer)	Mañana por encima del Lago de Atitlán (Photo: Tom Pfeiffer)

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