Question

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Plate Tectonics Type "Ascension Island" into the search bar, zoom out until you can see the plate boundary (mid ocean ridge) and the coast of Africa, Sketch this boundary below (sketch the view you have on your monitor). Indicate with arrows the relative plate motion. Name and label the plates on your diagram. Name and label the plates on your diagram. What type of plate boundary is this? What type of crust is here? If there is convergence, how can you tell if one plate is subducting or not? (If there is subduction, indicate which plate is subducting in your diagram above by placing a star on the subducting plate.) If there is no subduction, explain why. Would you expect to see volcanoes and or earthquakes here? If so, draw where volcanoes would occur (draw as A), draw where you'd expect earthquakes (draw as 0). 3 | Page

Answer 1

1)

Afrcan plate Souto Ameaican plate ప్కి AScamctonistard Bragil Divengling plates volcanees rerkueO

2) Divergent boundary which is also known as constructive boundary is found at this plate boundary(mid oceanic ridge) . They are consequences of rising and diverging convection cell limbs. As the diverging plate brings up magma and forms new crust which is basaltic in nature.

3) At these plate boundary there is no convergence. If at all convergence of plates takes place then lighter plate rise and heavier plate submerge.in that case crust gets destroyed as mantle drag happens due to converging limb of mantle cells. subduction sometimes does not take place due to similar characteristics of the material (plates) collision.

4) one can find volcanoes and earthquakes at this plate boundary because of tectonic activity, this plate is highly earthquake prone.(please find the mapping of volcanoes and earthquake markings in the above map for better understanding)