Table of Contents
- 1 What may happen to the leading edge of oceanic plate as it continues to move downward?
- 2 What happens to the leading edge of the descending plate?
- 3 What happens to the leading edge of the subducting plate in oceanic continental convergence?
- 4 What do you think may happen to oceanic crust?
- 5 What causes the motion of oceanic oceanic?
- 6 What happens when two oceanic plates move towards each other?
What may happen to the leading edge of oceanic plate as it continues to move downward?
As plate A continues to move downwards going to the mantle. The leading edge of plate A will melt and turns into magma. Magma rise up to the surface to form volcanoes.
What happens to the leading edge of the descending plate?
This takes place at zones of plate convergence. Volcanic and sedimentary material scraped off the descending oceanic plate accumulates along the leading edge of the overriding plate as an accretionary prism and is eventually incorporated into the adjacent plate margin as a microplate or accreted terrane.
What will happen if one of the leading edge of an oceanic plate suddenly flicks upward?
If the edge of the plate A suddenly flicks upward, a large amount of water may be displaced. What could be formed at surface of the ocean? Figure 6. Cross-sectional diagram of converging oceanic plates.
What happens to the leading edge of the subducting plate in oceanic continental convergence?
The magma formed is less dense than the surrounding material so it rises to the surface to form a magmatic arc on the edge of the continent which the oceanic plate is subducted under. Over time the continental margin, due to compression forms into a folded mountain belt.
What do you think may happen to oceanic crust?
Oceanic crust differs from continental crust in several ways: it is thinner, denser, younger, and of different chemical composition. Like continental crust, however, oceanic crust is destroyed in subduction zones. The lavas are generally of two types: pillow lavas and sheet flows.
What happens to the leading edge of an oceanic plate as it subducts beneath the other less dense plate?
Neither continental crust will subduct underneath one another because of their similar densities. When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone.
What causes the motion of oceanic oceanic?
The most obvious examples are the waves and ripples on the water’s surface that are generated by wind or the ocean currents that are due to tides. There currents are set in motion by variations in water density caused by differences in temperature and salinity, a process called convection.
What happens when two oceanic plates move towards each other?
When two plates move towards each other, the boundary is known as a convergent boundary. When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone.
When the leading edge of the subducting plate which is the mantle it melts turning into?
The subducting plate causes melting in the mantle. The magma rises and erupts, creating volcanoes. These coastal volcanic mountains are found in a line above the subducting plate (figure 7). The volcanoes are known as a continental arc.