Tectonics: Volcanoes - Case Studies and Pictures
- 1. Volcanoes
- 2. The Rift ValleyChain of spatter cones (foreground) from a linear eruption between Erta Ale and Hayli Gubbi. Note fault scarp parallel and behind the alignment.
- 3. Ol Doinyo Lengai The cone of Lengai (crowned by white lava overflows) stands in the middle of Rift Valley (Rift west scarp on the right).
- 4. The typical aa front (about 5cm thick) of a lava flow coming out from the lava lake T49E.
- 5. Lengai at NightMeduse's Hairs born from the lava lake? Volcanologists call them «Intestinal Flows»: they are due to magma differentiation.
- 6. Nyiragongo
- 7. Erta Ale
- 8. Marco has discovered that Pelee is blonde: Her heir is fair, not black (as in Hawaii), on Erta Ale!Pa Hoe Hoe at Erta Ale
- 9. Montserrat
- 10. DallolWhen a pond dries out strange salt "bushes" rising from the bottom indicate the former water level.
- 11. Dallol LakeSpectacularly green-coloured ponds below some active salt hornitos.
- 12. Sublimation from fumaroles causes salt to deposit in some strange shapes like branches in the wind.
- 13. An active hornito ejects water with plenty of minerals which form deposits mimicking a head covered by grey hair.Dozens of hornitos are active within a small area, together creating a symphony of whistles and puffing.
- 14. Krakatoa
- 15. Yellowstone
- 16. Vulcano
- 17. Stromboli
- 19. Pamukkale
- 20. Pelee