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What observations can you make about the relationship between volcanoes and plate boundaries?
Volcanos are usually found over subducting plate boundaries.
What does obduction mean?
Obduction occurs at convergent plate boundaries in which one plate remains at a constant level and the other plate is forced up over that plate.
What surface feature would you expect to form if both a hot spot and a tectonic plate are stationary?
A large volcano over the hot spot (ex Olympus Mons on mars)
Explain the features at a constructive boundary and why they form?
Constructive plate boundaries are those which are most commonly found between two oceanic plates. These locations include the South American Plate and the African plate, Indo-Australian Plate and Antarctic Plate and between the Nazca and Pacific Plate. the worlds longest constructive boundary is the Mid-Atlantic Ridge. These boundaries can be defined as boundaries which create new crustal material. The plates involved in this kind of boundary are diverging, or moving apart, which is the reason the boundaries are sometimes called 'divergent boundaries'. These plates cause some small-scale localised earthquakes. They also cause underwater volcanoes, where the magma rises from the mantle and cools quickly to form solidified igneous rock. Over time this rock builds up to create a chain of volcanoes, some of which become so large that they become volcanic islands such as ones found around Iceland. also associated with this type of boundary are smaller, transform boundaries running at right angles from the main fault.
What type of plate boundary leads to subduction?
Convergent plate boundaries lead to subduction. Subduction occurs when one tectonic plate rides over the edge of another tectonic plate which sinks into the mantle as they converge.
What are Yellowstone volcano's?
The Yellowstone volcano is well withing the boundaries of the North American plate. It formed over a hot spot rather than a plate boundary.
What are yellowstone volcanoes plates?
The Yellowstone volcano is well withing the boundaries of the North American plate. It formed over a hot spot rather than a plate boundary.
What type of volcano is formed at a weak spot in the middle of a plate?
Shield volcanoes are often formed over hotspots that are independent of plate boundaries... thus, at a weak spot that could be in the middle of a plate.
What happens when to plate move toward each other?
when two plates come together they form a volcano or they can form a mountain. It depends on if the plate is moving over or under the other plate.
Where do shield volcanos occur?
Not at plate boundaries but instead form over hot spots.
Where convergent plate boundary form?
convergent boundaries form when 2 plates collide, causing moutains to form over millions of years.
Does island have a lot of volcanoes because it is on the boundary of two plates?
Many volcanic islands are a product of plate boundaries, but some, such as the Hawaiian islands, form over hot spots away from plate boundaries.
Would you except to find plate boundaries here in Canada?
Yes, There are plate boundaries all over the world.
Is the Ol Doinyo Lengai volcano on a convergent divergent or transform boudary?
it is on a convergent boundary if I remember right but I'll post another answer if I'm wrong
What observations can you make about the relationship between volcanoes and plate boundaries?
Volcanos are usually found over subducting plate boundaries.
Where does continental tropical form?
Over land in polar regions that is where it forms I don't know how they form though
How do you xxplain how a volcano forms?
Volcanoes can form in a two different ways. The first is formed at destructive plate boundaries where one plate is subducted underneath the other. This subduction causes the plate to melt due to pressure and heat from the mantle. This newly melted crust is less dense than the surrounding magma which means it rises to the surface in the form of the volcano. The second type of volcano is formed by a concentration of radioactive elements in the mantle creating a magma column which creates an area of the crust which is thinner and creating a volcano at this point (a 'hot spot'). As the crust moves over the top of this hot spot it creates a chain of islands with only one active volcano (for example the Emperor Seamount Chain which Hawaii is part of).
