In science 10 unit 1 module 1 activity 3 , the title of the activity is " Head-On Collision" Part C: Two Continental Plates Converging. This activity shows the different geological features formed in convergent boundary particularly continental to continental plate convergence. This activity presented how two continental plate converged in which no subduction process occur. If no subduction process occurs, it means, no volcanoes, no trench are created. Only mountain ranges and earthquake are the geological feature formed in this type of convergence.
Q24. What happened to the strips of clay as they were pushed from opposite
ends?
Answer:
The strips of clay buckled upward. In the activity, the strips of clay represent collision zone between the two converging continental plates. It will form a mountain ranges on the surface of the Earth just the formation of Himalayas mountains over India.
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Three types of Convergent boundary
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Continental to oceanic convergence
- Oceanic to oceanic convergence
- Continental to continental convergence
Continental to oceanic convergence
Oceanic plate will subduct beneath the continental plate since it is more denser. Several geological features will formed because of this convergence. Philippine Islands are also a product of continental to oceanic plate convergence, wherein Eurasian plate collides with Philippine sea plate which produces volcanic islands creating Philippines Island.
Oceanic to oceanic convergence
The geological features formed in this convergence is similar to continental oceanic convergence.
Continental to continental convergence
This type of collision will not produce a trench and volcanoes, but it produces mountain ranges and earthquake. Earthquake will occur in all type of converging plates.
Here are the list of geological feature when two continental plate converged
- Earthquake
- Mountain Ranges
Earthquake
Grinding of the two oceanic plate as they collide produces earthquake. The type of earthquake produce is tectonic earthquake since its origin is the movement of the plate. When earthquake is produce because of Volcanic activity, we called them as Volcanic earthquake.
Types of Earthquake
- Tectonic Earthquake
- Volcanic Earthquake
Tectonic Earthquake
Tectonic earthquake is the result of the movement of the plate which produces tremendous amount of energy that travels in all direction away from the epicenter causing shaking on the surface.
Volcanic Earthquake
Volcanic Earthquake occurs due to the volcanic activity of erupting volcanoes. Volcanic activity due to the rising of magma on the surface of the earth causes shaking in surrounding areas known as volcanic earthquake.
Mountain ranges
Are formed between between the collision of continental-to-continental convergence. Collision zone is created in this type of collision, no trench, no volcanoes but only large group of tall mountains are created known as mountain ranges. One very good example is the Himalayas mountain.
Convergent boundary is also known as destructive boundary. As the subducted plate reaches the mantle, it will be destroyed. This type of boundary also explains most of the rock cycle. The plate will move in a certain direction because of the convection current of the mantle. Convection current in the mantle are produce because of heat in the inner core caused by radioactive decay of uranium which releases tremendous amount of heat.
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