What type of volcano is Tungurahua?
stratovolcano
Tungurahua is an active stratovolcano also known as the “The Black Giant.” It is a steep-sided andesitic-dacitic stratovolcano that towers more than 3 km above its northern base, is one of Ecuador’s most active volcanoes.
How did the Tungurahua volcano form?
Tungurahua II itself collapsed about 3000 years ago and produced a large debris-avalanche deposit and a horseshoe-shaped caldera open to the west, inside which the modern glacier-capped stratovolcano (Tungurahua III) was constructed. Historical eruptions have all originated from the summit crater.
What is Tungurahua made of?
Tungurahua, one of Ecuador’s most active volcanoes, is made up of three volcanic edifices. Tungurahua I was a 14-km-wide andesitic stratocone which experienced at least one sector collapse followed by the extrusion of a dacite lava series.
What type of lava does a supervolcano have?
The most likely type of volcanic eruption at Yellowstone would produce lava flows of either rhyolite or basalt.
What type of volcanoes are Kilauea and the other Hawaiian volcanoes?
Kilauea is a basaltic shield volcano, erupting a type of basalt known as tholeiite. This type of lava is the dominant extrusive during the shield building (the main stage) of hawaiian volcanism and is the dominant basalt type erupted on Earth.
When did Tungurahua erupt?
2018Tungurahua / Last eruption
Where is Tungurahua?
Ecuador
Tungurahua (Spanish: Provincia del Tungurahua, literally Province of the Tungurahua; pronounced [tuŋɡuˈɾawa]) is one of the twenty-four provinces of Ecuador. Its capital is Ambato. The province takes its name from the Tungurahua volcano, which is located within the boundaries of the provinces.
What type of magma is in Yellowstone?
rhyolite
Yellowstone erupts two different types of magma, rhyolite and basalt. Rhyolite magmas are the most famous at Yellowstone, as these can be very explosive. In fact, it was a large eruption of rhyolite that produced present-day Yellowstone caldera.
What type of lava does the Yellowstone Caldera have?
rhyolitic lava
During and after these explosive eruptions huge lava flows of viscous rhyolitic lava and less voluminous basalt lava flows partially filled the caldera floor and surrounding terrain. The youngest of these lava flows is the 70,000 year old Pitchstone rhyolite flow in the southwest corner of Yellowstone National Park.
What type of lava is Kilauea?
basalt
Kilauea is a basaltic shield volcano, erupting a type of basalt known as tholeiite. This type of lava is the dominant extrusive during the shield building (the main stage) of hawaiian volcanism and is the dominant basalt type erupted on Earth.
What are the two types of lava produced at Kilauea?
There are two principal types of lava flows in Hawaii. Pahoehoe is the type characterized by smooth, ropy, or billowy surfaces (Plate 5); whereas aa has a very rough, spiny or rubbly surface, but a massive interior (Plate 4).
What happened at Tungurahua and where is it?
The latest eruptive episode at Tungurahua lasted from 26 February-16 March 2016. Multiple explosions with ash plumes that rose 3-8 km were frequent. Incandescent blocks were ejected up to 1,500 m down most flanks. Pyroclastic flows affected many of the ravines, although no communities reported damage.
What is the meaning of Tungurahua?
throat of fire
Tungurahua, a large stratovolcano located in the Andes of Ecuador, derives its name from the local language, meaning ‘throat of fire. ‘ This is a very fitting name for a volcano that began erupting again in 1999 and continued to erupt frequently until 2016.
Is Yellowstone mafic or felsic?
Notably, Yellowstone demonstrates bimodal volcanism: it alternates between felsic and mafic eruptions. While the hotspot supplies mafic magma from the mantle, melting of continental crust–as well as fractional crystallization during long waits between eruptions–can create felsic magma.
What is andesitic magma?
Andesite is a gray to black volcanic rock with between about 52 and 63 weight percent silica (SiO2). Andesites contain crystals composed primarily of plagioclase feldspar and one or more of the minerals pyroxene (clinopyroxene and orthopyroxene) and lesser amounts of hornblende.
Is Yellowstone’s lava thick or thin?
Yellowstone’s Hidden Volcano
| Yellowstone Volcano | |
|---|---|
| Location | Wyoming, United States |
| Eruption Volume | Up to 2,500 km³ (Huckleberry Ridge) |
| Thickness | Up to 660 feet (Lava Creek) |
| Origin | Upper/Deep Mantle Convection |
What is basaltic lava?
Basaltic lava is another term for mafic lava. Mafic lava is molten rock that is enriched in iron and magnesium and low in silica. When mafic lava cools on the earth’s surface, it forms basalt, which is why mafic lava is commonly called ‘basaltic lava.
What is rhyolitic lava?
Rhyolitic lavas are viscous and tend to form thick blocky lava flows or steep-sided piles of lava called lava domes. Rhyolite magmas tend to erupt explosively, commonly also producing abundant ash and pumice.
What is the Tungurahua volcano?
Tungurahua I was a 14-km-wide andesitic stratocone which experienced at least one sector collapse followed by the extrusion of a dacite lava series.
Where did pyroclastic flows descend during Tungurahua’s eruption?
Paths where pyroclastic flows descended during Tungurahua’s eruption of 14-15 July 2006. The associated ashfall deposits are identified at points W of the volcano’s summit (thicknesses in mm). For scale, adjacent E-W grid lines are 4.44 km apart (and Cotalo, on the NW flank is ~8.5 km from the summit).
What is Tungurahua’s name based on?
According to another theory it is based on the Quichua uraua for crater. Tungurahua is also known as “The Black Giant”, and in local indigenous mythology it is allegedly referred to as Mama Tungurahua (“Mother Tungurahua”).
Why is Tungurahua dangerous?
Tungurahua’s activity has been characterized by frequent powerful ash explosions, producing ash plumes of several kilometers height as well as dangerous pyroclastic flows. Part of the population around its base has been evacuated.