Which type of magma is known for the most violent eruptions?
Rhyolitic magma
Which volcano produces the most violent eruptions and why?
Because they form in a system of underground conduits, stratovolcanoes may blow out the sides of the cone as well as the summit crater. Stratovolcanoes are considered the most violent. Mount St. Helens, in Washington state, is a stratovolcano that erupted on May 18, 1980.
What magma causes powerful explosive eruptions?
Basaltic
What are the composition of magma that contributes to eruption of volcano?
MAGMA COMPOSITION AND ROCK TYPES
| SiO2 CONTENT | MAGMA TYPE | VOLCANIC ROCK |
|---|---|---|
| ~50% | Mafic | Basalt |
| ~60% | Intermediate | Andesite |
| ~65% | Felsic (low Si) | Dacite |
| ~70% | Felsic (high Si) | Rhyolite |
What are the top two composition of magma answer?
Mafic magmas are low in silica and contain more dark, magnesium and iron rich mafic minerals, such as olivine and pyroxene. Felsic magmas are higher in silica and contain lighter colored minerals such as quartz and orthoclase feldspar.
Is water considered Lava?
When the surface of a lake freezes, the water changes from a liquid to a solid. Rocks that solidify from melted material are igneous rocks, so lake ice can be classified as igneous. If you get technical, it also means that water could be classified as lava. Since it is on the surface, it is technically lava.
Can you actually eat lava?
In addition to regular menu items like café latte, cakes and sandwiches you can order edible lava at Bræðraborg Café in the town of Ísafjörður in the Westfjords. The pieces look exactly like lava, and they even feel like lava in your hand, so people don’t believe they are actually edible until they bite into them!”
Will you die instantly if you fall in lava?
Most lava is very hot—about 2,000 degrees Fahrenheit. At those temperatures, a human would probably burst into flames and either get extremely serious burns or die. Unlike a lake, people won’t immediately sink into lava.
How long would lava take to kill you?
While your lungs would almost undoubtedly be irrevocably charred from the hot air above the lava (assuming relatively static air conditions over the lava), it takes about 80 seconds for the average human to fall unconscious from lack of oxygen, and I highly doubt your body will last that long.
Can lava Be Stopped?
There is no way to stop the flow of lava, scientists say. They did, however, have some success in diverting the lava from the island’s harbor, but they were unable to stop the flow. That eruption killed one person and destroyed portions of several towns.
What will not melt in lava?
Any object that has a melting point higher than that will not melt when touched by lava. For example Diamond has a melting point of about 3550 C. It will not melt when touched by lava.