Elouson refers to a salt plain, mud flat, or marshy area located near the sea. These areas are often characterized by high salt concentrations in the soil and water.

The reason elousons form is due to a combination of factors:

• Proximity to the Sea: Being close to the sea, these areas are often subjected to tidal flooding or saltwater intrusion into the groundwater.
• Poor Drainage: Elousons typically have poor drainage, which prevents rainwater from washing away accumulated salts. Water evaporates from the surface, leaving the salts behind.
• Arid or Semi-Arid Climate: In regions with low rainfall, there is less water available to leach salts from the soil, leading to their build-up.

The specific processes can vary depending on the local geology, climate, and hydrology of the area, but these general factors contribute to the formation of elousons.