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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(316 Hits)
Strong steaming from a fumarole field on the lower southern flank of Anak Krakatau. (Photo: Tom Pfei... [info]
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(384 Hits)
Block encrusted with yellow and orange oxides and sulfur. (Photo: Tom Pfeiffer) [info]
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(322 Hits)
Small fumarole vent. (Photo: Tom Pfeiffer) [info]
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(330 Hits)
Dozends of fumaroles form a bizarre field to cross which one needs a gas mask. (Photo: Tom Pfeiffer) [info]
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(447 Hits)
Oxides and fumarole minerals of various colors cover the ground. (Photo: Tom Pfeiffer) [info]
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(389 Hits)
Beautiful monoclinic sulfur needles form around some of the hotter fumarolic vents. (Photo: Tom Pfei... [info]
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(392 Hits)
Sublimating sulfur covers blocks and gives them a greenish-yellowish stain. (Photo: Tom Pfeiffer) [info]
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(302 Hits)
Oxidized and sulfur-covered blocks. (Photo: Tom Pfeiffer) [info]
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(307 Hits)
Crystal-covered fumarole vent. (Photo: Tom Pfeiffer) [info]
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(334 Hits)
View across the fumarole field towards the west with Rakata island in the left background. (Photo: T... [info]
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(329 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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(291 Hits)
Yellow-greenish ground in the very active fumarole field. (Photo: Tom Pfeiffer) [info]
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(300 Hits)
Yellow block coated by oxides and sulfur. (Photo: Tom Pfeiffer) [info]
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(344 Hits)
Blocks, sulfur and lots of gas. (Photo: Tom Pfeiffer) [info]
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(325 Hits)
Looking towards the cone of Anak Krakatau, altered ground and fumaroles in the foreground. (Photo: T... [info]
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(378 Hits)
