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At the constructive plate margin, as I think you mean, largely basalt from extruded upper-Mantle material.
Examples are Iceland, the Giant's Causeway and the Isle of Staffa (host to Fingal's Cave). The latter two are flood-basalts from the early rifting that led to the Atlantic Ocean. Iceland is on the junction of two oceanic-ridge constructive margins: the Mid-Atlantic and the Reykjanes, Ridges.
Please someone correct me if the latter name is wrong - I did that from memory!
What else can I help you with?
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.
What kind of valley where plates move apart?
A rift valley is formed when tectonic plates move apart, creating a gap in the Earth's crust. This process is often associated with divergent boundaries where new crust is formed as magma rises to fill the gap. Rift valleys can be found on land or under the ocean.
What things move apart from each other?
Tectonic plates, galaxies in the universe, and expanding balloons are examples of things that move apart from each other.
What is it when plates move farther and farther apart?
When plates move farther and farther apart, this is known as seafloor spreading. It occurs at mid-ocean ridges where new oceanic crust is formed as plates diverge. This process is driven by convection currents in the Earth's mantle.
What happens when two tectonic plates move apart?
Magma seeps up through the two plates from the mantle and form volcanos.
What boundary defines the formation of mountains?
Mountains are formed at the boundary where tectonic plates collide or move apart.
Tectonic plates interact at what?
Tectonic plates interact at plate boundariesThey move apart at divergent boundaries
What occurs when tectonic plates move apart?
A rift valley.
How do rift zones formed?
Rift zones are formed when tectonic plates move apart, creating a fracture in the Earth's crust. This movement can result in volcanic activity and the release of magma, leading to the formation of new crust. Over time, the rift zone widens as the tectonic plates continue to pull apart, eventually forming a new oceanic ridge.
Which feature do you see when tectonic plates move apart?
Earthquakes and Tsunami.
Places where tectonic plates move apart are called?
Places where tectonic plates move apart are called divergent boundaries. At these boundaries, new crust is formed as magma rises up from the mantle and solidifies, leading to the creation of features like mid-ocean ridges or rift valleys on land.
Why do the tectonic plates move in the first place?
Tectonic plates move because of the heat and pressure from the Earth's core, causing convection currents in the mantle that push the plates apart or pull them together.
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.
The kind of valley is where tectonic plates move apart?
The awnser is rift vally
Is the sea floor along the mid ocean ridge old or young?
Young, because it is being continually formed as the adjoining tectonic plates move apart.
What causes tectonic plates to move?
Tectonic plates move due to the heat and pressure from the Earth's mantle, causing convection currents that push the plates apart or pull them together. This movement is known as plate tectonics.
What happens at spreading plate boundaries?
tectonic plates move apart allowing magma to move to the surface.
