Question

quiz instructions
please complete the following concept questions after reading the chapter on plate tectonics from etext - earth science and after reviewing any additional resources in the module.
note: there is no time limit on concept reviews but you will not be able to close the review and re - open it again. if for some reason you get \kicked out\ of the review before completion, please contact your instructor.
question 12 1 pts
a continental volcanic arc forms at ________ ________ convergent plate boundary.
oceanic - continental
oceanic - oceanic
continental - continental

Explanation:

A continental volcanic arc forms at an oceanic - continental convergent plate boundary. When an oceanic plate subducts beneath a continental plate, melting occurs in the mantle above the subduction zone. The magma rises to the surface and forms a chain of volcanoes on the continental side, creating a continental volcanic arc.

Answer:

A. oceanic - continental