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What are the examples of divergent boundary?
Examples of a divergent boundary would be a mid-ocean ridge. Two plates are pulling apart from each other. If you have heard before, the magma from the asthenosphere find a way to get out through the crack of the diverging plates and makes new land. Another type of devergent boundary would be a fissure. It is a long linear crack made by the plates moving apart. I think maybe another one would probably be a volcano, but I am not sure.
What exerts a strong pull on water in the ocean?
The Moon's gravitational pull on our planet causes the ebb and flow, (rise and fall), of our earth's oceans.
Does gravity play a role in plate movement?
From what I know, Geologists have two main theories on why plates move. -The First idea is that at converging plate margins (constructive) as material moves up, the plates are pushed outwards -The second idea is that convection currents within the asthenosphere, (below the plates) which push plates along as if they were on wheels. These currents are formed as partially melted rocks rise because they are heated because it is hotter closer to the core and hotter materials rise. However, after rising for a while, the material cools and drops down again. This forms circular movements of rock which push the plates along. According to these theories, gravity doesn't but there might be another theory which says otherwise.
What does Gravity have to do with hot air rising?
The density of air changes with change of temperature, therefore changing it's mass. In other words, the molecules that make up the composition of air move farther apart with a rise in temp and, of course, just the opposite with a decrease in temp. Since temperature changes the mass of air, gravitational pull from the earth will change proportionately.
Why are mountains constructive?
Mountains form at (convergent and divergent) plate boundaries. Two plates can crash together and bend upward, forming a mountain, or lava can harden into rack and build up volcanoes which are mountains.
When tectonic plates pull apart?
When tectonic plates pull apart, they create gaps between them through which magma from the mantle can rise. As the magma cools and solidifies, new crust is formed at these mid-ocean ridges. This process is known as seafloor spreading.
What must happen first before magma rise to the surface?
Before magma can rise to the surface, it must first be generated through melting of the Earth's mantle or crust. This melting can be caused by an increase in temperature, a decrease in pressure, or the addition of volatiles. Once magma is generated, it can rise towards the surface through fractures and conduits in the Earth's crust.
What causes magma to rise to earths surface?
The magma is in the mantle, the layer under the crust. There is a convection current caused by radioactivity in the inner core which causes the plates to move. Therefore the constructive plates move apart which means magma can rise up. It'll then solidify and this is what makes volcanoes. Hence CONSTRUCTive.
What earth plates spread apart slowly?
Divergent boundaries such as the Mid-Atlantic Ridge and East Pacific Rise are examples of earth plates spreading apart slowly. This process results in the continuous formation of new oceanic crust as magma rises to the surface and solidifies.
A crack in the earth opened when two plates pull apart?
When two tectonic plates pull apart, it creates a fracture in the Earth's surface called a rift or a fissure. This rift allows magma to rise from the mantle, forming new crust and creating features like mid-ocean ridges or rift valleys. Over time, the movement of the plates can widen the crack and lead to the formation of new ocean basins.
What cause seafloor spreading?
valconoes!
What does conservative plate boundary mean?
a constructive plate boundary is where two plates move apart from eachother forming a gap which allows magma to rise and that leads to a earthquake.
How do plate tectonics make a volcano erupt?
Volcanic eruptions are caused by the movement of tectonic plates. When plates collide or move apart, magma can rise to the surface through cracks and weak points in Earth's crust, leading to volcanic activity. The release of pressure from the movement of the plates allows the magma to reach the surface and erupt as lava, ash, and gases.
Is spreading sea plates pulling apart?
Yes, spreading sea plates are moving away from each other due to the process of seafloor spreading, which occurs at mid-ocean ridges. This movement allows magma to rise from the mantle, creating new crust and pushing the existing plates apart.
What happens when the plates move apart towards and slide past?
When tectonic plates move apart, it creates a divergent boundary. As the plates separate, magma from beneath the Earth's surface can rise up, creating new crust. This process can lead to the formation of volcanic activity and mid-ocean ridges.
Why does floor spreading occur?
Because of plate tectonics. Because it's 2 plates underwater that are moving apart. Magma rise up to where the 2 plates are separating to fill in the gap. Seafloor spreading occurs underwater.
Why do most earthquakes and volcanoes happen at plate boundaries?
When tectonic plates move against each other, it can form mountains on the surface of the earth. When the plates pull apart again, the hot molten magma from inside of the earth rise to the surface and fill up a 'magma chamber' inside of the mountain, resulting in a volcano. And as for earthquakes, when plates run against each other, it causes shakes and quakes resulting in earthquakes above the ground. Hope this helps :P
