Q. What happens when tectonic plates move away from each other?
A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust. Two plates sliding past each other forms a transform plate boundary.
Q. What geologic features formed when two plates moved away from each other?
When two plates are moving away from each other, we call this a divergent plate boundary. Along these boundaries, magma rises from deep within the Earth and erupts to form new crust on the lithosphere. Most divergent plate boundaries are underwater and form submarine mountain ranges called oceanic spreading ridges.
Table of Contents
- Q. What happens when tectonic plates move away from each other?
- Q. What geologic features formed when two plates moved away from each other?
- Q. Which plate moves the fastest?
- Q. What will happen to the crust if two plates move towards each other why?
- Q. Which theory states that the entire crust is broken and is continuously moving?
- Q. What do you call this molten material that form as the oceanic plate continues to move downward?
- Q. Is the solidification of molten rock material?
- Q. What are common in the four pictures?
- Q. What becomes of the magma when it cools down?
Q. Which plate moves the fastest?
These average rates of plate separations can range widely. The Arctic Ridge has the slowest rate (less than 2.5 cm/yr), and the East Pacific Rise near Easter Island, in the South Pacific about 3,400 km west of Chile, has the fastest rate (more than 15 cm/yr).
Q. What will happen to the crust if two plates move towards each other why?
At convergent boundaries, where plates push together, crust is either folded or destroyed. When two plates with continental crust collide, they will crumple and fold the rock between them. A plate with older, denser oceanic crust will sink beneath another plate. The crust melts in the asthenosphere and is destroyed.
Q. Which theory states that the entire crust is broken and is continuously moving?
The theory of plate tectonics states that the Earth’s solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle.
Q. What do you call this molten material that form as the oceanic plate continues to move downward?
As the oceanic plate descends into the mantle some of it melts. This material moves into the mantle above the plate and causes the mantle to melt. This liquid rock, called magma, rises to the surface because it is less dense then the surrounding rock. If the magma reaches the surface of the Earth, a volcano forms.
Q. Is the solidification of molten rock material?
IGNEOUS ROCKS are formed from the solidification of molten rock. Most of the Earth is composed of igneous rock. There are 2 major types of igneous rocks; intrusive igneous rocks, and extrusive igneous rocks. INTRUSIVE IGNEOUS ROCKS solidify beneath the Earth’s surface.
Q. What are common in the four pictures?
Answer: The common among the pictures is the formation of divergent plate boundary, where it forms the rift valleys and oceanic ridges. The four presented pictures are most likely bodies of water that has a tight space of water movement.
Q. What becomes of the magma when it cools down?
Similarly, liquid magma also turns into a solid — a rock — when it is cooled. Any rock that forms from the cooling of magma is an igneous rock. Magma that cools quickly forms one kind of igneous rock, and magma that cools slowly forms another kind. Rock formed in this way is called extrusive igneous rock.
