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Why do volcanoes occur at constructive plate margins and subduction zones?
Wiki User
∙ 15y ago
Because the subducting plate is water saturated oceanic crust, and as it moves down into the mantle it vaporizes the water and forces steam upwards. At the same time, the descending plate causes friction and circulation, leading to pressure-release melting. All of these processes melt the upper mantle to form magma chambers and thus, volcanoes.
Wiki User
∙ 15y ago
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Do earthquakes occur at constructive margins?
yes earthquakes do occur on constructive margins and also the other plate margins as well. in fact all of them
Why do volcanoes occur at conservative plate margins?
after earth
Hotspot volcanoes occur along subduction zones?
No
Where do volcanoes that are far from the margins of the tectonic plates appear?
These volcanoes are believed to be above local 'hot spots' on the surface. Hawaii would be the prime example. Most volcanoes occur above the subduction zones at a merging plate boundary. But volcanoes also appear directly at the expanding junction of a pair of plates. Iceland, and some of the South Atlantic islands are examples of this.
Volcanoes formed from silica-rich magma?
first its not a question so if volcanoes formed from magma it will be a igneous rock.search me up on roblox.com my account name is xxbrandon3
Do earthquakes occur at constructive margins?
yes earthquakes do occur on constructive margins and also the other plate margins as well. in fact all of them
Do Hotspot volcanoes occur along subduction zones.?
No, hotspot volcanoes do not occur along subduction zones. They occur when plates pass over mantle hot spots.
Why do volcanoes occur at conservative plate margins?
after earth
Hotspot volcanoes occur along subduction zones?
No
What type of plate boundaries do stratovolcanoes occur?
At constructive plate margins (where two plate slide away from each other) or a destructive plate boundary (where two plates slide together), volcanoes do not occur at a conservative plate margin. Hope this helps
Where do volcanoes that are far from the margins of the tectonic plates appear?
These volcanoes are believed to be above local 'hot spots' on the surface. Hawaii would be the prime example. Most volcanoes occur above the subduction zones at a merging plate boundary. But volcanoes also appear directly at the expanding junction of a pair of plates. Iceland, and some of the South Atlantic islands are examples of this.
Volcanoes formed from silica-rich magma?
first its not a question so if volcanoes formed from magma it will be a igneous rock.search me up on roblox.com my account name is xxbrandon3
What can occur at places where one plate is pushed below another plate?
It is called subduction. Usually it will form coastal volcanoes.
Do volcanoes occur where two tectonic plates moves apart and magma rises up to create new crust?
No. Generally volcanoes occur at plate boundaries called subduction boundaries. At a subduction boundary one tectonic plate rides over another and the lower plate is forced down and magma is forced up
Do volcanoes occur at hot spots?
No. Hot spots and subduction zones are two separate geogolgic settings in which volcanoes can form. Some hot spots may develop as a result of activity in a subduction zone, and continue activity after subduction has ended or move away.
Why do volcanoes erupt on islands?
It is not so much that volcanoes tend to occur on islands as much as many islands are formed by volcanoes. Subduction zones and hot spots often cause volcanoes to develop on the sea floor. Erupted material then piles up to form islands.
What are the steps in continent mountain formation?
Continents and mountains are sometimes formed by volcanoes that occur on an arc near a subduction zone. The activity of the volcanoes can cause shifts in the plates that form mountains and lift continents.
