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The western part of the lava lake is being overturned. The solid crust is broken into large fragments that sink back into the fluid interior of the lake. (Photo: Tom Pfei...
File: erta_ale_i10053.jpg | 5213 Hits Copyright: Tom Pfeiffer / www.volcano-photo.com --- Image found in Erta Ale volcano: November 2009 ... and in: Photo of the Day
Overturning of older crust is a common feature at lava lakes. When the crust cools sufficiently, it contracts and becomes denser than the liquid underneath. Eventually, p...
File: hawaii_e6829.jpg | 1148 Hits Copyright: Tom Pfeiffer / www.volcano-photo.com --- Image found in Lava lake in Pu'u 'O'o crater (July 2007)
The crust can no longer be supported and starts to break up on the western end of the lake, leading to a rapid succession of spectacular crust subduction events. (Photo: ...
File: erta_ale_i9777.jpg | 1734 Hits Copyright: Tom Pfeiffer / www.volcano-photo.com --- Image found in Erta Ale volcano: November 2009 ... and in: Photo of the Day
Sequence of photos showing the occasional overturning of the thin crust. The photos are spaced only few seconds apart from each other and show how the crust breaks into r...
File: hawaii_e7097-100.jpg | 1450 Hits Copyright: Tom Pfeiffer / www.volcano-photo.com --- Image found in Lava lake in Pu'u 'O'o crater (July 2007)
The crust is so thin it is easily torn apart. At such "rift zones", the exposed hot interior of the lake quickly cools to form a new plate. (Photo: Tom Pfeiffer)
File: nyiragongo_i42615f.jpg | 1789 Hits Copyright: Tom Pfeiffer / www.volcano-photo.com
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