volcanoes & lava
TRANSCRIPT
Stromboli, Italy - November 2007. A bright yellow blob of viscous lava appears in the NE vent, forms a bubble and explodes. After the initial explosion, several powerful jets of spatter-rich erupt from the opened vent. (Song : Lava by Alkistis Protopsalti & Haris Alexiou) Click to continue
A volcano is a geological landform usually generated by the eruption through a vent in a planet's surface of magma, molten rock welling up from the planet's interior. Volcanoes of various types are found on other planets and their moons as well as on earth. Roughly defined, a volcano consists of a magma chamber, pipes and vents. The magma chamber is where magma from deep within the planet pools, while pipes are channels that lead to surface vents, openings in the volcano's surface through which lava is ejected during an eruption.
North-western view of Mt. Fuji (Japan) over Lake Shoji which formed by damming the old lake with the Aokigahara lava
flows erupted in 864.
Though the common perception of a volcano as a mountain spewing lava and poisonous gases from a crater in its top is not wrong per se, the features of volcanoes are much more complicated and vary from volcano to volcano depending on a number of factors. Some volcanoes even have rugged peaks formed by lava domes rather than a summit crater, whereas yet others present landscape features such as massive plateaus. Vents that issue volcanic material (lava, which is what magma is called once it has broken the surface, and ash) and gases (mainly steam and magmatic gases) can be located anywhere on the landform.
Santorini, Greece -View from Mikri Kameni across the caldera towards the Skaros shield. The houses of Imerovigli are seen on top of the caldera rim.
Please, vote for Santorini as one of the
new 7 wonders of
Nature here!)
Volcanoes around the world … ok some of them…
Kliuchevskoi - Kamchatka peninsula Semeru - Indonesia
Popocatepetl - Mexico Mayon - Philippines
Lava Photos
Lava on road
Hot spatter cone
Lava river
Lava flow
Lava exploding
Lava pooling
Santorini – Greece
Oia & the Caldera
Volcano - Hot springs
Volcano - Hot springs
Agios Nikolaos – Palea Kameni
Nea Kameni - 1926
Crater in Palea Kameni
Crater in Nea Kameni
Please, vote for Santorini as one of the
new 7 wonders of
Nature here!)
Nisyros – Greece
Organge lychen and Stefanos crater in the background
View onto the Stefanos crater and Profitis Ilias mountain
The largest of the Polyvotis craters.
View into the opposite direction towards Stefanos crater.
Volcan Etna - Sicily, Italy
Volcan Etna - Sicily, Italy (May 2008…)
Etna erupting
Strombolian eruption from the vent and lights of Giarre, Tsaormina and Calabria at night.
Etna eruption - May 2008
Etna eruption - May 2008
Stromboli, Italy
Stromboli village and the volcano 5 July 2006 rain of bombs - eruptions from individual vents
Eruption from the craters of Stromboli Impressions at dawn. On this picture, an ash eruption from the NW crater in the background takes place
Stromboli, Italy (…continue)
Series of a jet-like spatter fountain from the NE central crater vent.
Mount Vesuvius – Naples, Italy
Vesuvius erupts in 1944 Vesuvius erupts in 1944
Crater on Mount. VesuviusPompeii and Mt.Vesuvius by morning
Kelud volcano – East Java - Indonesia
Wide-angle view of Kelud's lava dome inside the crater.
Muddy brown color of the remnant of the lake.
Face to face with the lava dome
Face to face with the lava dome
Chaitin volcano, Chilie
May 6,2008 after 9.000 years of silence, Chile's Chaitin volcano is erupting with lava, ash and lightning
Seen from space on May 3, the plume from the Chaitin volcano drifts across the Andes mountains, Chile's eastern border, and the width of Argentina.
Ash covers the Yelcho River near Chaitén, Chile, on May 4, 2008, after an eruption of the Chaitén volcano.
Photographed on May 4 from the evacuated town of Chaitin, Chile's Chaitin volcano has sent ash as high as 12 miles (19 kilometers) into the sky
Mount.St.Hellens, Washington State
Volcano in eruption Mt St.Helens Washington State
3,000 ft (1 km) steam plume on May 19, 1982
Kilauea volcano on the Big Island of Hawaii
Lava Arch Hot lava touches the cold ocean
Cinder cone from Pu'u'O'o eruption of Mount Kilauea Lava flowing from high levels
Fiji volcano, Japan
The hoei crater from which the latest eruption occureed in 1707
The summit crater of Fuji Volcano.
The End . Thank you !