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Mount Etna


Laura Daniel

on 11 March 2010

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Transcript of Mount Etna

History of Mount Etna The Geology Surrounding Area Effects Mount Etna is a quite complex Volcano to classify, as it is a mixture of a shield volcano and a stratovolcano. Not only that, but its behavior is typical of a plinian and strombolian Volcano.
Mout Etna is situated at the boundary where the African Plate sub ducts under the Eurasian Plate, deforming the latter and forming plumes of Magma upwards into weak points in the earths crust.
The Volcano consists of two Volcanoes. An ancient shield Volcano at the bottom and the younger stratovolcano ‘Mongibello’ on top.
Mont Etna covers 1190km2
Its ash has been found as far away as Rome.
Mount Etna has more than 260 minor craters.
Its Volcanic Products cover 1740km2
It has around 200 cones.

Some Etra Facts: Location Mount Etna is the dominant terrain feature on Sicily. Mount Etna's occasional eruptions would seem to make many Sicilians nervous. However, the locals seem to have accepted the way Mount Etna is and instead capitalize on the fertility and sturdiness of the volcanic rock.
Towns Vineyards There are also several towns surrounding mount Etna such as Maletto which is quite large.

Maletto is located on the back side of the volcano just near the base though safe from the flows of the volcano. Further down is the city, Randazzo
A Sicilian vineyard growing in the shadow of Mount Etna. The inhabitants of Sicily must balance the advantage of rich volcanic soil with the dangers of losing their crops and farms to
an eruption from the still-active volcano.
Although Etna’s volcano gives people enough time to escape because of the slow lava flow. it leaves all the towns and surrounding vegetations completely destroyed.
Ashes Ashes and lava form columns and fall down around the volcano causing many problems for cities around it.

During a recent eruption, the falling down of ash caused the Catania airport to close down and now, airplanes must fly far from the area, to avoid the ashes that can damage their reactors turbines causing them to fall down. Agriculture Water and diseases Acid rain Rainfall interacting with volcanic gas within the ash plume may produced acids which fall as acid rain .

Ash falls may be poisonous to livestock and result in clinical diseases, including hypocalcaemia, fluorosis, forestomach and intestinal damage, and secondary metabolic disorders.
Ash from volcano erutopns can have a serious effecrt on the agriculture. Fluorine poisoning and death can occur in livestock that graze on ash-covered grass if fluoride is present in high concentrations

Survival of agricultural crops and pasture is often severely limited when ash thickness is greater than 10-15 cm
Some of its effects Water may also get contaminated by ash causing many diseases Diseases The End! Thank you for watching our Presentation! (: Mount Etna's largest eruption was in 1966 where lava flows destroyed villages and submerged houses in ash.
Mount Etna has more than 300 Vents and 260 sub craters.
Diodorus was Mount Etna's first recorded eruption in around 1600BC.
One of Etna's most violant eruptions occurred in 122BC and caused heavy ash and rocks to fall onto nearlby houses, causing their roofs to collaps. One of the most badly effected cities was the city of Catania.
15 000 - 35000 Years ago Mount Etna experienced some highly explosive eruptions. Ash from these explosions were found as far away as Rome. 800km to the north.
In the 1970's Mount Etna started erupting Smoke Rings.
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