As rainwater seeps through soil and rocks, it dissolves tiny amounts of minerals, including salts and their chemical constituents, and carries them out to sea by means of streams and rivers (1).
Iesūkdamies augsnē un iežu plaisās, lietus ūdens nelielā daudzumā izšķīdina minerālus, starp kuriem ir arī dažādi minerālsāļi, un ieskalo tos strautos un upēs, kas savukārt aiznes tos uz jūru (1).