How is continental lithosphere different from oceanic lithosphere quizlet?
How is continental lithosphere different from oceanic lithosphere? The continental lithosphere is different from the oceanic lithosphere because the continental lithosphere is mostly made of granite, is about 150km thick, and is less dense than oceanic crust.
What does the orientation of transform faults indicate about plate motion quizlet?
How can the orientation of transform faults provide information about the direction of plate motion? A) Transform faults are oriented perpendicular to the direction of plate motion.
When plates slide horizontally past one another without the production or destruction of lithosphere is called the?
The zone between two plates sliding horizontally past one another is called a transform-fault boundary, or simply a transform boundary.
Where is continental rifting occurring today?
Very few active rift valleys are found on continental lithosphere. The East African Rift the Baikal Rift Valley the West Antarctic Rift and the Rio Grande Rift are Earth's major active continental rift valleys.
Why is oceanic lithosphere subducted during an oceanic continental collision whereas the continental plate is not?
–The oceanic lithosphere is denser than the continental lithosphere so it subducts. That means it gets shoved down underneath the overriding plate. The overriding plate doesn't subduct because it is made up of less dense rock.
What is the difference between oceanic lithosphere and continental lithosphere?
Oceanic lithosphere is typically about 50-100 km thick (but beneath the mid-ocean ridges is no thicker than the crust). The continental lithosphere is thicker (about 150 km). It consists of about 50 km of crust and 100 km or more of the uppermost mantle.
Which tectonic boundary results when two tectonic plates pull apart from each other quizlet?
Which tectonic boundary results when two tectonic plates pull apart from each other? Divergent boundaries form because of tensional stress. Divergent boundaries are not one, smooth ridge of separation. Instead, they are broken into a series of segments, with different segments of fault offset from others.
How do plates move at divergent plate boundaries quizlet?
How do plates move at divergent plate boundaries? Plates move apart at divergent plate boundaries. How do plates move at convergent plate boundaries? Plates move toward one another at convergent plate boundaries.
What type of boundary occurs when two lithospheric plates slide past each other along transform fault?
A transform plate boundary occurs when two plates slide past each other, horizontally. A well-known transform plate boundary is the San Andreas Fault, which is responsible for many of California's earthquakes. A single tectonic plate can have multiple types of plate boundaries with the other plates that surround it.
What type of plate boundary is formed between two plates sliding past each other?
transform fault boundary When oceanic or continental plates slide past each other in opposite directions, or move in the same direction but at different speeds, a transform fault boundary is formed. No new crust is created or subducted, and no volcanoes form, but earthquakes occur along the fault.
How are a continental volcanic arc and a volcanic island arc different from each other quizlet?
How are a continental volcanic arc and a volcanic island arc different from each other? A continental volcanic arc is a result of an oceanic plate subducting under a continental plate, whereas a volcanic island arc is a result of an oceanic plate subducting under another oceanic plate.
How plate tectonics lead to the formation of the Great African rift valley?
Millions of years ago, the Arabian Peninsula was connected to Africa. Seafloor spreading caused the Arabian and African plates to rift apart. The Indian Ocean flooded the rift valley between the continents, creating the Red Sea. Today, Africa and Asia are connected by the triangle of the Sinai Peninsula.
Why does oceanic lithosphere Subduct even when the oceanic crust is less dense than the underlying asthenosphere?
Explain why oceanic lithosphere subducts even though the oceanic crust is less dense than the underlying asthenosphere. Oceanic lithosphere subducts because its overall density is greater than that of the underlying mantle.
When oceanic lithosphere converges towards continental lithosphere the oceanic lithosphere is subducted under the continental lithosphere because it is?
when oceanic lithosphere collides with continental lithosphere, oceanic subducts because it's denser than continental lithosphere. when two plates are made of oceanic lithosphere and collide, one plate is subducted under the other, forming deep ocean trench.
Which is more dense continental lithosphere or oceanic lithosphere?
There are two types of lithosphere: oceanic lithosphere and continental lithosphere. Oceanic lithosphere is associated with oceanic crust, and is slightly denser than continental lithosphere. The most well-known feature associated with Earth's lithosphere is tectonic activity.
Why is oceanic lithosphere denser than continental lithosphere?
In the theory of tectonic plates, at a convergent boundary between a continental plate and an oceanic plate, the denser plate usually subducts underneath the less dense plate. It is well known that oceanic plates subduct under continental plates, and therefore oceanic plates are more dense than continental plates.
What type of motion occurs at transform boundary plates move quizlet?
At transform boundaries, tectonic plates are not moving directly toward or directly away from each other. Instead, two tectonic plates move past each other in a horizontal direction.
Which type of tectonic boundary is a result of two tectonic plates sliding past each other?
A transform plate boundary occurs when two plates slide past each other, horizontally. A well-known transform plate boundary is the San Andreas Fault, which is responsible for many of California's earthquakes. A single tectonic plate can have multiple types of plate boundaries with the other plates that surround it.
How do plates move at divergent plate boundaries plates do not move plates move together plates move apart plates move side by side?
1:072:53Plate Boundaries-Divergent-Convergent …YouTube
What does conservative plate boundary mean?
At a conservative plate margin , the plates move past each other or are side by side moving at different speeds. As the plates move, friction occurs and plates become stuck. Pressure builds up because the plates are still trying to move.
What is convergent boundary?
When two plates come together, it is known as a convergent boundary. The impact of the colliding plates can cause the edges of one or both plates to buckle up into a mountain ranges or one of the plates may bend down into a deep seafloor trench.
When oceanic crust meets oceanic crust along a convergent boundary which plate is to be subducted?
denser plate If the two plates that meet at a convergent plate boundary both are of oceanic crust, the older, denser plate will subduct beneath the less dense plate.
What is a divergent boundary?
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.
How are a continental volcanic arc and volcanic island arc different from each other?
An island volcanic arc forms in an ocean basin via ocean-ocean subduction. The Aleutian Islands off the coast of Alaska and the Lesser Antilles south of Puerto Rico are examples. A continental volcanic arc forms along the margin of a continent where oceanic crust subducts beneath continental crust.
When oceanic and continental crust collide at a subduction zone one plate is forced under the other?
When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser. Convergent boundaries are commonly associated with larger earthquakes and higher volcanic activity.
What is the total length of the Great East African Rift Valley from Syria to Mozambique?
approximately 7,000 kilometres The Great Rift Valley is a series of contiguous geographic trenches, approximately 7,000 kilometres (4,300 mi) in total length, that runs from Lebanon in Asia to Mozambique in Southeast Africa.
Which features form along all types of plate boundaries faults rift valleys mountains ocean ridges?
Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines are examples of features that can form along plate tectonic boundaries.
Why does oceanic lithosphere Subduct under continental lithosphere whereas continental lithosphere does not Subduct under oceanic lithosphere?
-The oceanic lithosphere is denser than the continental lithosphere so it subducts. That means it gets shoved down underneath the overriding plate. The overriding plate doesn't subduct because it is made up of less dense rock.
When the heavier oceanic lithosphere descends beneath the less heavy oceanic lithosphere?
Subduction zones are where the cold oceanic lithosphere sinks back into the mantle and is recycled. They are found at convergent plate boundaries, where the oceanic lithosphere of one plate converges with the less dense lithosphere of another plate.
Why does oceanic lithosphere Subduct under continental lithosphere whereas continental lithosphere does not Subduct under oceanic lithosphere quizlet?
Why does oceanic lithosphere subduct under continental lithosphere, whereas continental lithosphere does not subduct under oceanic lithosphere? The oceanic lithosphere is thinner and denser than the continental lithosphere, which is thicker and less dense.