The invasion of salt water into a body of fresh water, occurring in either surface or ground-water bodies. When this invasion is caused by oceanic waters, it is called sea-water intrusion. (Bul D11)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}