Question

In terms of the consequence of the earth lithosphere,how will you differentiate this type of convergent plate boundary with the other two?

Answer 1

Answer:

Since the two plates collides are both continental plates which are both less dense, no subduction process happen and no formation of volcanoes and trench.

Explanation:

Answer 2

In terms of the consequence of the earth's lithosphere, continental/ continental convergent boundaries are different. There is no subduction zone formed in this type of convergent boundary.  

Continental/continental convergent boundaries:

• Compared to oceanic/oceanic and oceanic/continental mashups, continental plate boundaries are somewhat different.
• Since the continental lithosphere is too buoyant to subduct deeply, these boundaries are a large pile of crumpled, piled-up crust rather than a subduction zone and trench.
• In contrast to the volcanic arcs driven by subduction-zone magma in the other two situations, this compression produces enormous mountain belts.

Convergent plate boundaries:

• The lithosphere of the Earth, which consists of the rigid highest layer of the mantle and its rigid outer crust, is separated into movable tectonic plates that the continents and oceans travel on.
• When plates contact, they generate turbulent convergent boundaries, where one plate is either destroyed or jams up against the other.
• Plates can diverge or slide past one another.

1. oceanic/oceanic,
2. oceanic/continental, and
3. continental/continental are examples of convergence boundary types.

Oceanic/Oceanic Convergent Boundaries:

• Where two or more oceanic plates collide, the older, cooler, and denser plate subducts or descends beneath, the younger plate.
• An island arc, a line of volcanoes produced by rock melt in the mantle linked with subduction, and a seafloor trench identifying the earthquake-racked subduction zone are examples of such convergent boundaries.
• The forearc basin between the trench and the island arc and the backarc basin on the other side of the arc are additional characteristics of an oceanic/oceanic convergent boundary.

Oceanic/Continental Convergent Boundaries:

• Because ocean crust, which is rich in iron and magnesium, is denser than continental rock, it subducts beneath the latter where oceanic and continental plates intersect.
• Again, a subduction zone forms here, and a volcanic arc forms on the continental side of the boundary.
• Sediments that slough up against the continental margin produce an accretionary wedge in the space in between.

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