Nyiragongo volcan (DRCongo), jan 2011: surface de lave
Spin web shapes of the surface of the lava lake at night. (Photo: Tom Pfeiffer) [info]
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The crust is so thin it is easily torn apart. At such "rift zones", the exposed hot interior of the ... [info]
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An isolated fountain breaks the sub-concentric arrangements of small plates on the lava lake crust. ... [info]
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A fissure-like fountain cuts through the crust of the lava lake. (Photo: Tom Pfeiffer) [info]
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The center of the lava lake often contains one or several plates, from which cracks seem to radiate.... [info]
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The lava lake's crust seen at night. (Photo: Tom Pfeiffer) [info]
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Numerous small fountains on the lake, reminding of scattered campfires... (Photo: Tom Pfeiffer) [info]
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The surface of the lake is split into ever changing plates that drift along driven bz internal conve... [info]
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Slightly larger plates form sometimes when an area of the lake hasn't been upset by fountains for a ... [info]
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Volcanic gas obscuring the view of the surface of the lava lake. (Photo: Tom Pfeiffer) [info]
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Opposite to what one expects intuitively, the plates are drawn TOWARDS the fountains, not away from ... [info]
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The fountains on the lava lake are caused by degassing, the release of hot gasses that rise from the... [info]
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Small amounts of volcanic gas, visible as bluish sulphur dioxide, escape from the "plate boundaries"... [info]
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The shapes of the plates on the lake are in constant evolution, a fantastic spectacle to watch for h... [info]
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At night, the lava lake reminds of abstract drawings. (Photo: Tom Pfeiffer) [info]
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A "spider web" has formed in the left part of the lake... what is it hoping to catch? (Photo: Tom Pf... [info]
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