What causes the phenomenon where different waters meet but do not mix and thus create a straight line which doesn't break, even when ships cross over it? | by Craig McClarren
![USGS Ground-Water Resources Program (GWRP): Freshwater-Saltwater Interactions along the Atlantic Coast USGS Ground-Water Resources Program (GWRP): Freshwater-Saltwater Interactions along the Atlantic Coast](https://water.usgs.gov/ogw/gwrp/saltwater/fig2.gif)
USGS Ground-Water Resources Program (GWRP): Freshwater-Saltwater Interactions along the Atlantic Coast
![What is an estuary? An estuary is a partially enclosed body of water where two different bodies of water meet and mix (e.g. fresh water from rivers or. - ppt download What is an estuary? An estuary is a partially enclosed body of water where two different bodies of water meet and mix (e.g. fresh water from rivers or. - ppt download](https://slideplayer.com/4400196/14/images/slide_1.jpg)