Part 2: Plate Tectonics 11. At what two types of plate boundaries does magma mov
ID: 118297 • Letter: P
Question
Part 2: Plate Tectonics 11. At what two types of plate boundaries does magma move into cooler crustal rocks causing Rocks B and C (hornfels) to form? Explain. divergent convergent transform because... 12. At what type of plate boundary do large mountain zones form causing Rock E and I (greenschist) to form? Explain. divergent convergent transform because... 13. At what type of plate boundary does rock rapidly move deep beneath the surface causing Rocks D and G (blueschist) to form? Explair. divergent convergent transform because...Explanation / Answer
SOLUTION:-11.
This kind of plate boundary is called as divergent boundary. it is also termed as spreading boundary At these boundaries, two plates move away from one another. As the two move apart, mid-ocean ridges are created as magma from the mantle upwells through a crack in the oceanic crust and cools. This, in turn, causes the growth of oceanic crust on either side of the vents. As the plates continue to move, and more crust is formed, the ocean basin expands and a ridge system is created. in this process the rocks B and C formed or spread due to process of divergent boundaries only. it is responsible in part for driving the motion of the plates.
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