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In plate tectonics, a divergent boundary or divergent plate boundary (also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other.
4.5: Divergent Plate Boundaries. Divergent boundaries are spreading boundaries, where new oceanic crust is created to fill in the space as the plates move apart. Most divergent boundaries are located along mid-ocean oceanic ridges (although some are on land). The mid-ocean ridge system is a giant undersea mountain range, and is the largest ...
At divergent boundaries, sometimes called constructive boundaries, lithospheric plates move away from each other. There are two types of divergent boundaries, categorized by where they occur: continental rift zones and mid-ocean ridges.
Feb 15, 2021 · Divergent plate boundaries are locations where tensional forces are pulling things apart. In locations where lithospheric plates are diverging, the rates of divergent motion range from 2 to 17 cm/year. Spreading Centers along Divergent Plate Boundaries.
Learn how divergent plate boundaries form new crust and ocean ridges, and how they affect the earth's surface and history. Watch a video and read comments from students and teachers.
- 12 min
- Sal Khan
- Why does the magma melt through the lithosphere and thin out the crust why doesn't it just melt a pa...Due to the cooling effects, the magma simply cannot penetrate the crust without crystalising while rising towards the surface. The effect is twofol...
- how dos the land get thinner? shouldn't it form a mountain or something if the bubble is going up?The way I understand it, the bubble isn't actually going up at first, in the sense of hot magma erupting. First it creates the pressure in the proc...
- if gravity can pull anything down, how is the magma going up?Magma rises mostly because of buoyancy. Molten rock has a lower density than solid rock. Only very low density magma can come to the surface, most...
- Could this be happening anywhere around the world, or is it limited to the borders of the plates? Li...What type of event are you referring to?
- What would happpen is the plates stop moving what would happen to socity and the food chain?Well on one hand there'd be less earthquakes and volcanic eruptions, which would decrease the amount of life and money lost through damaged buildin...
- When mountains form because of the plates, does the mountains become new land?Certainly Yes. We see in our surroundings the rocks turning into sand which were once very hard rocks .Because of the process of erosion. This even...
- How can the land be stretched out if the Earth isn't getting bigger? Or is it getting bigger?New crust can be created but that also means some other crust has to be pushed underneath at what we call a subduction zone to make room. The actua...
Divergent plate tectonic boundaries are when two tectonic plates move away from each other, creating new oceanic crust and magma. Learn about the Mid-Atlantic Ridge, the Pacific Ring of Fire, and other examples of divergent plate boundaries and how they form.
Divergent plate boundaries are locations where plates are moving away from one another above rising convection currents. Learn about the effects of divergent boundaries on the Earth's internal structure, such as submarine mountains, volcanoes, earthquakes and rifts. See examples of oceanic and continental divergent plate boundaries with satellite images and maps.
