Brine rejection that drains from the newly formed ice is replaced by a weak flow of relatively fresh water, from the liquid region below it. The new water partially freezes within the pores of the ice, increasing the solidity of the ice. As sea ice ages and thickens, the initial salinity of the ice decreases due to the rejection of brine over time [Fig. 2]. While the sea ice ages, desalinization occurs to such a degree that some multiyear ice has a salinity of less than 1 PSU. This occurs in three different ways: Brine rejection occurs in the sea ice packs
History of salt in Middlewich 57% of the UK market "From thence runneth Wever down by Nantwich, not far from Middlewich, and so to Northwich. These are very famous Salt-Witches, five or six miles distant, where brine or salt water is drawn out of pits, which they pour not upon wood while it burneth as the ancient Gauls and Germans were wont to do, but boil it over a fire to make salt thereof. Neither doubt I that these were known unto the Romans, and that from hence was usually paid the Custom of Salt, called Salarium. "For, there went a notable highway from Middlewich