a stratovolcano with caldera a stratovolcano with caldera
Mazama produces felsic magma.
Mount Mazama is on the North American Plate.
A volcano crater filled with water---CALDERA
No. The volcano has not been active in nearly 5,000 years.
It covers parts of Pampanaga, Tarlac and Zambales on the Island of Luzon in the Philippenes, but its ash can be found all over the world.
In the same way that the other mountains of the Cascade Range were formed. The Juan de Fuca Plate subducted under the North American Plate. The water that subducted with the Juan de Fuca Plate lowered the melting temperature of the rock above it, causing magma to form. The magma built up and rose, causing the formation of all the mountains in the Cascade Range.
Mount Mazama is on the North American Plate.
Yes. It is near a subduction sone.
Yes. Crater Lake is in the caldera of Mount Mazama, which formed as a result of the Cascadia Subduction Zone where the Juan de Fuca Plate collides with the North American Plate.
A volcano crater filled with water---CALDERA
No. The volcano has not been active in nearly 5,000 years.
It covers parts of Pampanaga, Tarlac and Zambales on the Island of Luzon in the Philippenes, but its ash can be found all over the world.
In the same way that the other mountains of the Cascade Range were formed. The Juan de Fuca Plate subducted under the North American Plate. The water that subducted with the Juan de Fuca Plate lowered the melting temperature of the rock above it, causing magma to form. The magma built up and rose, causing the formation of all the mountains in the Cascade Range.
Mount Rainier, Washington, isn't located on a divergent plate boundary but a convergent one. The Juan de Fuca Plate off the coast is pushing under the northern US and Canada, creating volcanism (such as Mt St Helens).
Fault lines
Wizard Island is part of the larger volcano Mount Mazama. A few thousand years ago Mount Mazama produced an enormous eruption and collapsed into a giant crater called a caldera. The caldera filled with water to form Crater Lake. Small eruptions that occurred later built up a cone of material that we call Wizard Island. Mount Mazama was formed as a result of a subduction zone along the west coast of North America. Here a section of the oceanic crust slides under the North American Plate and into the mantle, taking water with it. The water alters the chemistry of the hot rock in the mantle, causing some of it to melt. The molten rock has traveled upward and erupted to form a chain of volcanoes.
mount Fuji lies on the Eurasian plate.
eruasion plate