What are Stratovolcanoes? Astratovolcano, also known as acomposite volcano, is a cone-shaped volcano made of layers of lava, ash, and other material that come from the volcano's main opening. These volcanoes are
Mount Vesuvius is what’s called a composite volcano. Here the magma is made from lots of different types of rocks, liquids and gases, forced deep underground by plate tectonics. Under pressure and heat, this volatile mixture melts, and then rises back up to lurk inside a large magma chambe...
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. Are faults younger than dikes? Faults, dikes, erosion, etc., must...
gas bubble up from below, the pressure builds and builds, as if the bottle is being shaken. Finally, it bursts, releasing a thick cloud of vapor, ash, and rocky debris that hovers above the volcano before collapsing into a pyroclastic flow. This is what makes composite volcanoes so ...
What kind of boundary is offshore of the Andes Mountains? How many volcanic mountains are there in the world? Are volcanic mountains formed by tension? What type of plate boundary is a composite volcano on? The Himalayan Mountains formed at which type of plate boundary? How many volcanoes are...
How are Volcanoes Formed? The earth is made up of three layers:the outer crust,the mantle, andthe core.The primary ingredient for the formation of volcanoes is the mantle which is made up of molten materials and gases commonly referred to as magma. When intense pressure develops within the ...
What can studying rocks from the moon tell us about the early history of the earth? What are the controls on the viscosity of a lava flow? Which one of the following statements is correct? a. Most volcanism takes place in continental interiors. b. Lava...
The volcanic cone formed above the kimberlite pipe is very small in comparison with volcanoes like Mount St. Helens, but the magma originates at depths at least 3 times as great. These deep roots enable kimberlite to tap the source of diamonds. Magmas are the elevators that bring diamonds ...
These are the Galapagos Islands, off the West Coast of Ecuador in South America. The Galapagos Islands are made from a series of volcanoes. They were made famous by Charles Darwin, on his expedition aboard HMS Beagle in 1835. Many of the organisms found in the Galapagos can't be found an...
It was formed 13 000 years ago and now is one of the most active Japanese volcanoes. Its last eruption was in 1914. Before it, an earthquake series came to the region. It has been erupted for several months and has drastically changed the surrounding landscapes. The erupted lava made up ...