The Reason Why Seawater Is Salty
Seawater contains salts, and about one-third of produced salts in the world is made from seawater.
海水が塩辛い理由
According to the Japanese old tale, since a millstone that continues to produce salts sunk into the sea, the sea water became salty.
海水は塩を含んでいて、世界で生産されている塩の約1/3は海水から作られます。
However, the true reason is because the seawater was strongly acidic in the ancient times.
日本昔話では、塩が出続ける石臼が海に沈んだため、海水が塩辛いと語っています。
The acidic seawater and the acid rain melted rock strata, and mineral seeped into the sea, then the seawater became salt water.
しかし本当の理由は、太古の昔は海が強い酸性だったためです。
Currently the feed rate of salts is almost commensurate with the removal rate of salts, so the saltiness of the seawater is constant.
酸性の海や酸性雨が岩盤を溶かし、ミネラルが溶け出して塩水となったそうです。
