Manganese nodules do not accumulate below 4500 meters depth because the manganese minerals are highly soluble in seawater below that depth.
Manganese is not a rare earth element. The rare earths range from Lanthanum (atomic number 57) to Hafnium (70) and Actinium (89) to Rutherfordium (102). Manganese is atomic number 25. Looking at the periodic table, you will see two rows at the bottom named Lanthanoids and Actinoids - those are the rare earths.
Seawater contains salts as well as other minerals in its suspension, therefore it is hypertonic to drinking water.
Magnesium can be extracted from the minerals Dolomite (CaCO3·MgCO3) and Carnallite (KCl·MgCl2·6H2O), but is most often obtained from seawater
Chemical sedimentary rock is created by precipitation of minerals out of, or evaporation from, saturated solutions that are high in dissolved minerals. Rock gypsum and rock salt are two examples.
Water, dissolved minerals, oil, plastics, condoms, sh!t and just about everything else that's either washed from the land or dumped there by man.
salt precipitating out of the seawater
Hans Pettersson has written: 'A transparency-meter for sea-water' -- subject(s): Seawater 'Atlantis und Atlantik' 'Iron and manganese on the ocean floor' -- subject(s): Iron, Manganese, Ocean bottom 'Submarine daylignt' -- subject(s): Actinometer, Solar radiation
Minerals that crystallize directly from seawater are examples of hydrogenous sediment.
Hydrogen, oxygen, trace minerals.
Bromine is found naturally in bromide compounds. It never is found as a pure element, but is processed commercially from brines rich in bromides by using a treatment with manganese dioxide or sodium chlorate. Bromine can also be extracted from seawater, where its average concentration is about 85 parts per million.
potassium and sulfate
Desalination
Manganese is not a rare earth element. The rare earths range from Lanthanum (atomic number 57) to Hafnium (70) and Actinium (89) to Rutherfordium (102). Manganese is atomic number 25. Looking at the periodic table, you will see two rows at the bottom named Lanthanoids and Actinoids - those are the rare earths.
hydrogenous sediment
The term is Desalination.
Seawater contains salts as well as other minerals in its suspension, therefore it is hypertonic to drinking water.
Because seawater is made up of many elements that can be seperated.