When the Atlantic and Pacific oceans meet, we see the most spectacular haloclines, which are borders between waters of different salinities.
This was discovered by the well-known explorer Jacques Cousteau while he was deep diving in the Strait of Gibraltar.
Each layer of salinity-varying water had its own flora and fauna, and it appeared as though they were divided by a transparent film.
When water in one ocean or sea is at least five times saltier than water in the other, haloclines form.
By pouring seawater or colored salty water into a glass and topping it with fresh water, you can make a halocline at home.
Your halocline will be horizontal, whereas ocean haloclines are vertical. This is the only difference.
You could argue that a denser liquid should ultimately end up lower and a less dense liquid should end up higher if you remember a few fundamental physics concepts.
If that were the case, the boundary that separates the two oceans would appear to be horizontal rather than vertical, and the difference in salinity between them would become less apparent as they got closer to one another.
Why then does it not occur here?
To begin, there isn’t much of a difference in the water’s density between the two oceans, making it difficult for one to sink and the other to rise.
Yet it is sufficient to prevent them from mixing.
Inertia is yet another explanation.
When the system of axes, which is also moving, is in motion, one of the inertial forces known as the Coriolis force exerts influence on objects.
Simply put, the Earth is moving, and the Coriolis force will act on all moving objects on it, causing them to veer off course.
Consequently, objects on Earth’s surface deviate clockwise in the Northern and counterclockwise in the Southern hemispheres rather than moving in a straight line.