The dissolved salts in the earth's oceans are principally derived from?

Question

The dissolved salts in the earth's oceans are principally derived from?

Answer 1

Unrefined sea salt contains many minerals that regular iodized table salt does not contain, such as calcium, potassium, magnesium, sulfate, and traces of others (including heavy metals such as mercury, lead, and cadmium, as well as strontium).

Answer 2

Mostly from continental rocks.

Most of the ocean's salts were derived from gradual processes such the breaking up of the cooled igneous rocks of the Earth's crust by weathering and erosion, the wearing down of mountains, and the dissolving action of rains and streams which transported their mineral washings to the sea. Some of the ocean's salts have been dissolved from rocks and sediments below its floor. Other sources of salts include the solid and gaseous materials that escaped from the Earth's crust through volcanic vents or that originated in the atmosphere.