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Initially a series of tensile structures (on continents) such as horst and graben will form. These are a series of downthrown crustal blockes surrounded on ether side by normal faults.

If the tensile stress continues, this will form a rift with the associated vulcanism. Ultimately this can form a new spreading centre creating a new ocean and mid oceanic ridge.

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13y ago
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12y ago

Plates Separate

The Mid-Ocean Ridge and rift valleys, such as the one that runs through eastern Africa, occur along boundaries where plates are spreading apart. New oceanic crust is created as the plates separate and molten rock rises up from the mantle and fills the space. The earthquakes and the volcanic eruptions along the Mid-Ocean Ridges are a direct result of this process.

There is also an island formed by the magma from the inner core that rises up to make tiny islands like Hawaii

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14y ago

An earthquake or tremor would occur.

no, actually a volcanic eruption would occur then there would be a volcano

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15y ago

When plates move apart, new crust forms from rising mantle material.

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11y ago

When two plates separate, it creates a rift valley

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12y ago

New crust forms from rising mantle material.

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12y ago

a rift valley which later turns into a mid ocean ridge when it covers a big area and fills with water.

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Anonymous

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3y ago

when plate seperate the heavier one goes under neath

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Q: What happens when tectonic plates split apart?
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Related questions

Which country split apart into several?

continent. Pangea split into Laurasia and then all our countries slowly split apart due to the tectonic plates


Where two of the earth plates split apart?

At the boundry of two tectonic plates, you get volcanoes, earthquake epicentres and ( if its under the ocean) tsunamis.


Can tectonic plates split in half?

Yes


What country is split by two tectonic plates?

Iceland


European countries is split by tectonic plates?

all continents were separated by plates separating them.


How have continents moved in the past?

Plate tectonics. Continents are the exposed (from the oceans) geological areas of tectonic plates. Continents can also be on top of more than one tectonic plate. When these plates move, continents move with them. Millions of years ago, continents were split apart and also created by tectonic plate movement.


What is the theory on tectonic plates?

There once was this thing named Pangaea and it split apart and keeps moving every year forming the continents that we know today. Hope it helped.


What is pangaea and what caused pangaea to separate?

Pangea was a huge landmass made of all the continents today. Tectonic plates in the Earth moved, causing it to split apart.


Definition of sea-floor spreading in a kids own words?

it's when tectonic plates split and magma comes up through the separation of the tectonic plates and build new crust


What can tectonic plates form when they divide?

When tectonic plates divide they create divergent boundaries, which can cause the earths surface to divide and split up, almost like when you rip a piece of paper


What is composed of oceanic continental crust and upper mantle?

That would be the lithosphere which is split into tectonic plates.


Where do two of the earth's plates split apart?

The Mid-Atlantic-Ridge is where two of Earth's plates split apart. The Mid-Atlantic-Ridge was formed along a divergent boundary where seafloor spreading is taking place.