where is oceanic crust thickest?
Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest. The answer to the question stated above is letter a. at mid-ocean ridges. >The oceanic crust is thickest at mid-ocean ridges. >>Mid-Ocean Ridges are where the Earth's plates are gradually moving apart causing gaps in the middle, magma rises to fill the gaps. Comments.