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>40 images found
A spectacular outcrop of tuffs dissected by visible faults near the lighthouse (Photo: Tom Pfeiffer)
A spectacular outcrop of tuffs dissected by visible faults near the lighthouse (Photo: Tom Pfeiffer)
File: santorini_g3202.jpg | 1831 Hits
Derechos de autor: Tom Pfeiffer
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Image found in Faszination volcán: Santorini mayo + Oct 08 (parte 1): Acrotiri
... y en: Foto del día
Thick pumice and ash layers from various volcanic eruptions exposed in the southern caldera walls of Santorini (Photo: Tom Pfeiffer)
Thick pumice and ash layers from various volcanic eruptions exposed in the southern caldera walls of Santorini (Photo: Tom Pfeiffer)
File: santorini_g3168.jpg | 1594 Hits
Derechos de autor: Tom Pfeiffer
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Image found in Faszination volcán: Santorini mayo + Oct 08 (parte 1): Acrotiri
The third phase ash-flow deposit of the Minoan eruption, in places several tens of meters thick. (Photo: Tom Pfeiffer)
The third phase ash-flow deposit of the Minoan eruption, in places several tens of meters thick. (Photo: Tom Pfeiffer)
File: santorini_g3205.jpg | 1533 Hits
Derechos de autor: Tom Pfeiffer
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Image found in Faszination volcán: Santorini mayo + Oct 08 (parte 1): Acrotiri
... y en: Foto del día
The contact between the metamorphic basement and volcanic rocks (Photo: Tom Pfeiffer)
The contact between the metamorphic basement and volcanic rocks (Photo: Tom Pfeiffer)
File: santorini_g14199.jpg | 4771 Hits | + 2 similar images
Derechos de autor: Tom Pfeiffer
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Image found in Santorini 09 de mayo: Fotos de gira de fascinación volcán
... y en: Foto del día
... y en: Foto de la semana
A spectacular geologic outcrop at the western Yasur caldera rim exposes a 3-4 meter thick, solid red deposit which in fact probably is a deposit from a spatter-rich pyroclastic flow, welded so well together that it appears like a lava flow. A fine-grained base layer and loose or poorly welded spatter at the top can be seen as well.
Btw, very similar deposits can be observed on Santorini (e.g. "Upper Scoria 2") where they have become subjects of numerous studies and are now famous as perfect examples for this unusual (and previously unrecognized) type of pyroclastic flows.  (Photo: Tom Pfeiffer)
A spectacular geologic outcrop at the western Yasur caldera rim exposes a 3-4 meter thick, solid red deposit which in fact probably is a deposit from a spatter-rich pyroc...
File: vanuatu_g15370.jpg | 1600 Hits | + 2 similar images
Derechos de autor: Tom Pfeiffer
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Image found in Vanuatu May 2009: colors
Large ash- and pumice pyroclastic flow deposits witness from the giant eruption of Lake Atitlán ca. 74.000 years ago. (Photo: Tom Pfeiffer)
Large ash- and pumice pyroclastic flow deposits witness from the giant eruption of Lake Atitlán ca. 74.000 years ago. (Photo: Tom Pfeiffer)
File: gua_i20136.jpg | 1287 Hits | + 3 similar images
Derechos de autor: Tom Pfeiffer
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Image found in Guatemala Dic de 2009: fotos expedición
... y en: Foto del día
Erosion gullies converging towards one of the major drainage canyongs out of the caldera to the west. (Photo: Tom Pfeiffer)
Erosion gullies converging towards one of the major drainage canyongs out of the caldera to the west. (Photo: Tom Pfeiffer)
File: ambrym_i0289.jpg | 1891 Hits | + 21 similar images
Derechos de autor: Tom Pfeiffer
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Image found in Vanuatu May 2009: Ambrym caldera
... y en: Foto del día
Numerous hollows many of which still contain charcoal are present in certain sections of the ash flow. When the pyroclastic avalanche flowed over a forest, many trunks and branches of trees were incorporated into the flow and their shape preserved in the deposit. (Photo: Tom Pfeiffer)
Numerous hollows many of which still contain charcoal are present in certain sections of the ash flow. When the pyroclastic avalanche flowed over a forest, many trunks an...
File: gua_i20153.jpg | 998 Hits | + 5 similar images
Derechos de autor: Tom Pfeiffer
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Image found in Guatemala Dic de 2009: fotos expedición
... y en: Foto del día
Yashmin explaining the charred wood found in the ignimbrite (ash flow) deposit. (Photo: Tom Pfeiffer)
Yashmin explaining the charred wood found in the ignimbrite (ash flow) deposit. (Photo: Tom Pfeiffer)
File: gua_i20148.jpg | 2909 Hits
Derechos de autor: Tom Pfeiffer
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Image found in Guatemala Dic de 2009: fotos expedición
Inside the Ambrym caldera (Photo: Yashmin Chebli)
Inside the Ambrym caldera (Photo: Yashmin Chebli)
File: interieur.jpg | 3112 Hits
Derechos de autor: Yashmin Chebli
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Image found in Ambrym volcán - los lagos de lava de Marum y Benbow
... y en: Fotos de Ambrym volcán gira Sep 2010
... y en: Foto del día
The volcanic ash layers covering the flat caldera floor, carved by erosion. (Photo: Tom Pfeiffer)
The volcanic ash layers covering the flat caldera floor, carved by erosion. (Photo: Tom Pfeiffer)
File: ambrym_i0052.jpg | 2097 Hits | + 14 similar images
Derechos de autor: Tom Pfeiffer
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Image found in Vanuatu mayo de 2009: excursión al cráter Marum
... y en: Foto del día
En el camino a. Marum, Seguimos sin corte de Valle Grande a travs de depsitos de ceniza ms ondulado (Photo: Tom Pfeiffer)
En el camino a. Marum, Seguimos sin corte de Valle Grande a travs de depsitos de ceniza ms ondulado (Photo: Tom Pfeiffer)
File: ambrym_i0055.jpg | 2395 Hits | + 1 similar image
Derechos de autor: Tom Pfeiffer
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Image found in Vanuatu mayo de 2009: excursión al cráter Marum
... y en: Vanuatu - volcanes en el mar del Sur: fotos del tour
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