0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How does magma form at a subduction zone?
it is a chemical interaction started by the water the subducted plate brings down with it which causes melting and forms magma which creates volcanoes
Where does the water involved in melting at subduction zones come from?
Water contained within minerals in the subducting plate is released during metamorphism.
What do volcanoes have to do with rocks?
volcanoes are a rock formation that's what the have to do with rocks and when the hot magma (lava) gets hit with cold water the magma (lava) starts to harden there fore creating a lava rock
What two ingredients in magma affects the type of explosion and shape of a volcano?
water and mantle rock +++ More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
What two ingredients in magma affect the type of explosion and shape of a volcano?
water and mantle rock +++ More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
How does magma form at a subduction zone?
it is a chemical interaction started by the water the subducted plate brings down with it which causes melting and forms magma which creates volcanoes
What would happen if water was present in wet magma?
wet magma is nothing but magma which is cooling down.if wet magma touches water, it will cool down the magma.2. Much volcanic material, magma included contains water - hence forming clouds above an active volcano. But seldom is material ejected from the throat steaming when it lands, therefore most of the moisture is rapidly dissipated.Volcanic glasses can occasionally contain water, under large pressure and temperature, and upon the explosive ejection, may form pumice or ignimbrite.Presumably the water in the magma was entrained during the subduction phase of the cycle.
Does Mount Fuji has any type of magma?
Its lava (not magma) is a water saturated granitic lava that is typical of subduction zone volcanoes. It tends to erupt explosively due to the sudden flash evaporation of the water as the lava leaves the volcano.
Where does the water involved in melting at subduction zones come from?
Water contained within minerals in the subducting plate is released during metamorphism.
How do subduction zones lead to the formation of volcanic activity?
Subduction zones lead to the formation of volcanic activity because the water combined with crust and mantle material lowers the rock's melting point temperature, causing the rock to melt and produce magma, which then creates volcanic activity.
What do volcanoes have to do with rocks?
volcanoes are a rock formation that's what the have to do with rocks and when the hot magma (lava) gets hit with cold water the magma (lava) starts to harden there fore creating a lava rock
What two ingredients in magma affects the type of explosion and shape of a volcano?
water and mantle rock +++ More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
What two ingredients in magma affect the type of explosion and shape of a volcano?
water and mantle rock +++ More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
What properties of magma help to determine the type of eruptions?
The properties of magma that help to determine the type of eruption are the magma's viscosity and its silica content. Those volcanoes that exhibit massive eruptions have a high viscosity and high silica content.
Why do many earthquakes but few volcanic eruptions occur in the himalaya?
because it is at a converging boundary which means that the plates are coming together which causes earthquakes.This is because the Himalaya Mountains are a result of continent-continent collision and vulcanism in destructive boundaries results from subduction of oceanic plates. As the Indo-australian plate continues to collide with the Eurasian plate, subduction is no longer possible. The resulting stresses are relieved mostly from very large strike-slip faults. This results in much seismic activity, or earthquakes.-JenniPennehMore earthquakes and few volcanic eruptions occur in the Himalayas because volcanoes mostly occur when there is a transform boundary and subduction takes place between an oceanic plate and a continental plate. When the oceanic plate goes under the continental plate, subduction, the cool water from the ocean lowers the melting point of the rock it is under and allows magma to form easily. Then the magma rises upward(when magma is less dense than the rock surrounding it, it rises) and eventually goes through the surface creating a volcanic eruption.
What does hot magma turn water into?
Magma turns water into steam.
What are the sources of heating that are responsible for the generation of Earth's magma?
Much of the heat is generated by the intense gravitational pressures caused by the surface depth and the intense friction created in the subduction zone, but there also a great deal of secondary factors. With the introduction of water in the subduction zone due to the fact that "wet" rock melts at lower temperatures than "dry" rock and aids in the process of partial melting in the subduction zones. The subducting material that is saturated with sea water mixes with the material and speeds the melting process. Steam rises into the overlying lithosphere and asthenosphere and causes the formation of vast quantities of magma due to pressure relief melting.
