Volcan Krakatau (Indonésie) juillet 2012: champs de fumerolles
Extensive fumarole fields and large expanses of altered ground are found on the southern and western base of the main cone, especially in the valley between the low, pre-1990 crater rim and the cone. Here are some impressions taken in July during our expedition to Krakatau.
A large bomb in the saddle between the old crater rim and the main cone of Anak has been covered by ... [info]
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(322 Hits)
Strong steaming from a fumarole field on the lower southern flank of Anak Krakatau. (Photo: Tom Pfei... [info]
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(388 Hits)
Block encrusted with yellow and orange oxides and sulfur. (Photo: Tom Pfeiffer) [info]
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(329 Hits)
Small fumarole vent. (Photo: Tom Pfeiffer) [info]
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(339 Hits)
Dozends of fumaroles form a bizarre field to cross which one needs a gas mask. (Photo: Tom Pfeiffer) [info]
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(453 Hits)
Oxides and fumarole minerals of various colors cover the ground. (Photo: Tom Pfeiffer) [info]
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(428 Hits)
Beautiful monoclinic sulfur needles form around some of the hotter fumarolic vents. (Photo: Tom Pfei... [info]
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(401 Hits)
Sublimating sulfur covers blocks and gives them a greenish-yellowish stain. (Photo: Tom Pfeiffer) [info]
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(308 Hits)
Oxidized and sulfur-covered blocks. (Photo: Tom Pfeiffer) [info]
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(317 Hits)
Crystal-covered fumarole vent. (Photo: Tom Pfeiffer) [info]
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(337 Hits)
View across the fumarole field towards the west with Rakata island in the left background. (Photo: T... [info]
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(334 Hits)
Our group walking on white altered ground at the foot of the cone of Anak Krakatau (Photo: Tom Pfeif... [info]
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(295 Hits)
Yellow-greenish ground in the very active fumarole field. (Photo: Tom Pfeiffer) [info]
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(311 Hits)
Yellow block coated by oxides and sulfur. (Photo: Tom Pfeiffer) [info]
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(352 Hits)
Blocks, sulfur and lots of gas. (Photo: Tom Pfeiffer) [info]
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(329 Hits)
Looking towards the cone of Anak Krakatau, altered ground and fumaroles in the foreground. (Photo: T... [info]
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(387 Hits)
