Such as the howler about waters of varying salinity not mixing, when in fact they clearly do?
Peace m249boost
Here is the verse in question:
Qur'an 25:53
And it is He Who has let free the two seas (waters), this is palatable and sweet and that is salt and bitter: and He has set a barrier and a complete partition between them.
Whoever said that the Qur'an refers to these waters not mixing is mistaken. The waters do mix denoted by the words "let free" in the verse. However, it does state in this verse that a barrier exists between the two bodies of water. i.e. a significant drop or rise in salinity over a very short interface distance. There is not the gradual dispersion as one would expect. That is how I understand the term 'complete partition' in that it behaves somewhat like a permeable membrane, held in dynamic equilibrium, but if we could see a cross-section as different colours the points where they meet would be clear to us, because the area taken up for mixing is very thin and the bodies salinity either side is uniform and not gradually reducing, as the intellect would have us expect.
Also read up on freshwater lens it is not the same thing but it makes the palatable side work, otherwise the only places this could take place would be in estuaries. I guess similar affects would be seen on oceans meeting oceans based on underwater land profiles.