What are the key details for volcano?
What are the key details for volcano?
A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. In an eruption, gases and rock shoot up through the opening and spill over or fill the air with lava fragments.
What is the easiest volcano to identify?
Cinder Cone Volcanoes: These are the simplest type of volcano. They occur when particles and blobs of lava are ejected from a volcanic vent.
What’s at the bottom of a volcano?
Crater: In addition to cone structures, volcanic activity can also lead to circular depressions (aka. A volcanic crater is typically a basin, circular in form, which can be large in radius and sometimes great in depth. In these cases, the lava vent is located at the bottom of the crater.
How old is whakaari?
Whakaari/White Island has been active for at least 150,000 years, It is a stratovolcano, (composite cone volcano) made of layers of andesite lava flows and pyroclastic deposits (tephra). Since human settlement in New Zealand there has been continual low level activity and small eruptions.
What are the 3 major types of volcanoes?
There are three types of volcanoes: cinder cones (also called spatter cones), composite volcanoes (also called stratovolcanoes), and shield volcanoes. Figure 11.22 illustrates the size and shape differences amongst these volcanoes. Shield volcanoes, which get their name from their broad rounded shape, are the largest.
Can you look inside a volcano?
While it’s impossible to know what an active volcano looks like inside because you – and anything you try to put down inside it – would be burned up in seconds, you can descend 120 meters in to the magma chamber of the dormant Thrihnukagigur volcano in Iceland with Inside the Volcano.
What is the biggest volcano in New Zealand?
Ruapehu
Ruapehu is the Māori word for ‘pit of noise’ or ‘exploding pit’. It is the largest active volcano in New Zealand and is located at the southern end of the Taupo Volcanic Zone.
What is New Zealand’s most active volcano called?
Whakaari/White Island
Whakaari/White Island, located in the Bay of Plenty 50 km offshore of North Island, has been New Zealand’s most active volcano since 1976.
What is the most dangerous volcano type?
stratovolcanoes
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.
What happens if you touch lava?
Lava won’t kill you if it briefly touches you. You would get a nasty burn, but unless you fell in and couldn’t get out, you wouldn’t die. With prolonged contact, the amount of lava “coverage” and the length of time it was in contact with your skin would be important factors in how severe your injuries would be!
Are there sharks in lava?
Scientists captured video evidence of sharks living in a volcano. The scientists dropped a camera into the main crater of the volcano Kavachi, located in the Solomon Islands.
Does New Zealand have a supervolcano?
New Zealand has the world’s most frequently active supervolcano system! The central Taupō Volcanic Zone (TVZ) has two recently active volcanic centres, Taupō and Okataina. Every few decades the TVZ experiences unrest and every few hundred years it erupts.
Is Mt Everest a volcano?
Formed from clashing of two tectonic plates – the Indo-Australian and Eurasian plates, Mount Everest is not a volcano. Mount Everest is a mountain. Mount Everest – the highest mountain in the world stands 8848 meters (29,030 ft) high.