Question

question 17 the transformation of oceanic crust into new crust usually occurs at which geological feature? transform boundary convection cell subduction zone mid - ocean ridge choose a response

Explanation:

• Transform boundary: This is a boundary where tectonic plates slide past each other horizontally. There is no creation or destruction of crust here, so it is not the site for the transformation of oceanic crust into new crust.
• Convection cell: These are circular patterns of fluid (in the mantle, magma) movement due to heat transfer. They drive plate tectonics but are not a geological feature where crust is transformed into new crust.
• Subduction zone: Here, one tectonic plate is forced under another. This is a site of crust destruction (as the sub - ducting plate is recycled into the mantle), not crust creation.
• Mid - ocean ridge: At mid - ocean ridges, magma rises from the mantle. As the magma cools, it forms new oceanic crust. The old oceanic crust is pushed away from the ridge, and this is the process by which oceanic crust is transformed (replaced in a sense) with new crust.

Answer:

Mid - ocean ridge