Oceanic Crust is more dense than continental one. The margin between both types of materials can be passive or develop a subduction zone, where Oceanic Crust sinks under continental one.

I know there is geological evidence of cases where Oceanic Crust obduce upon the continent.

How can it happen if Oceanic Crust is more dense?

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    $\begingroup$ This paper doi.org/10.1080/00206814.2016.1276482 would be a good start $\endgroup$ – Gimelist Apr 1 at 1:06
  • $\begingroup$ @Gimelist thanks for sharing. From a previous discussion when I was bad I cannot read it, only the abstract. I realized my mom has a Science Direct license at University but she will get retired next year. I think it is not possible if there is no a volcanic arc-island and a polarity reversal from subduction to convergent margin from the abstract and from what I have read at Wikipedia. $\endgroup$ – user12525 Apr 1 at 16:38

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