- Which type of magma is thick?
- What causes magma to rise?
- Is Taal Volcano a supervolcano?
- Which volcano will destroy the world?
- What country has the largest volcano?
- Why are there so many different types of magma?
- Which type of lava is most explosive?
- What is the oldest volcano?
- Which type of magma is most explosive?
- What is the largest type of volcano?
- Is Magma a liquid?
- Would we die if Yellowstone erupts?
- What is the shortest lived type of volcano?
- What are the 3 types of volcanoes?
- What are the types of lava?
- Which is the most dangerous volcano in the world?
- What is the difference between magma and lava?
- How deep is magma in the earth?
Which type of magma is thick?
High viscosity magma is very thick and pasty.
It usually has a large amount of dissolved gas .
It usually erupts violently.
Low Viscosity magma is thin and runny with little dissolved gas..
What causes magma to rise?
Magma can rise when pieces of Earth’s crust called tectonic plates slowly move away from each other. … Magma also rises when these tectonic plates move toward each other. When this happens, part of Earth’s crust can be forced deep into its interior. The high heat and pressure cause the crust to melt and rise as magma.
Is Taal Volcano a supervolcano?
Taal Volcano, Philippines The smallest supervolcano that has formed on the planet 500 000 years ago. The volcano’s caldera has a wonderful lake, which changes after every eruption.
Which volcano will destroy the world?
Yellowstone volcano WARNING: Catastrophic eruption would destroy ALL life on Earth.
What country has the largest volcano?
10 Countries With The Most VolcanoesRankCountryNumber of Volcanoes1United States1732Russia1663Indonesia1394Iceland1306 more rows•Sep 18, 2019
Why are there so many different types of magma?
Why are there so many different types of magmas? Because it depends on the source, how it interacts with its surroundings (assimilation), and whether crystals sink as they form (partial melting and magma mixing).
Which type of lava is most explosive?
Viscous lavaViscous lava will trap pockets of gas within the rock, and not let them pop as bubbles on the surface. But most importantly, highly viscous lava is associated with explosive eruptions and dangerous pyroclastic flows. An example of a low viscosity (fast flowing) lava is basaltic lava.
What is the oldest volcano?
EtnaEtna in Italy is sometimes called the oldest active volcano because it has the longest historic record of eruptions. It has erupted 190 times in the last 3,500 years. This is a bit misleading, however, because it was already an old volcano when the first recorded eruption occurred in 1,500 BC.
Which type of magma is most explosive?
Explosive eruptions are favored by high gas content and high viscosity (andesitic to rhyolitic magmas).
What is the largest type of volcano?
The world’s largest volcano, Mauna Loa in Hawaii, is a shield volcano, according to the U.S. Geological Survey. Mauna Loa is about 55,770 feet (17,000 meters) from its base beneath the ocean to the summit, which is 13,681 feet (4,170 meters) above sea level.
Is Magma a liquid?
Magma is extremely hot liquid and semi-liquid rock located under Earth’s surface. … Like solid rock, magma is a mixture of minerals. It also contains small amounts of dissolved gases such as water vapor, carbon dioxide, and sulfur.
Would we die if Yellowstone erupts?
Should the supervolcano lurking beneath Yellowstone National Park ever erupt, it could spell calamity for much of the USA. Deadly ash would spew for thousands of miles across the country, destroying buildings, killing crops, and affecting key infrastructure. Fortunately the chance of this occurring is very low.
What is the shortest lived type of volcano?
Cinder coneWater What is the shortest-lived type of volcano? Cinder cone What are the different types of seismic waves.
What are the 3 types of volcanoes?
There are three main types of volcano – composite or strato, shield and dome. Composite volcanoes, sometimes known as strato volcanoes, are steep sided cones formed from layers of ash and [lava] flows. The eruptions from these volcanoes may be a pyroclastic flow rather than a flow of lava.
What are the types of lava?
Lavas, particularly basaltic ones, come in two primary types: pahoehoe (pronounced ‘paw-hoey-hoey”) and aa (pronounced “ah-ah”). Both names, like a number of volcanological terms, are of Hawaiian origin. A third type, pillow lava, forms during submarine eruptions.
Which is the most dangerous volcano in the world?
Vesuvius volcanoThe quick answer: Vesuvius volcano in the Gulf of Naples, Italy. The reason is that Vesuvius’ typical eruptions are very explosive and the slopes of the volcano and immediate area surrounding the volcano are extremely densely populated; even the city of Naples is only about 20 km away from the volcano.
What is the difference between magma and lava?
Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth’s surface.
How deep is magma in the earth?
A layer of molten rock trapped since Earth’s formation may exist where the solid mantle meets the core, a new study says. A layer of searing hot liquid magma trapped since Earth’s formation may lie 1,800 miles (2,900 kilometers) beneath our feet, new research suggests.