1 Formation
1.1 Formation
Evaporite is water-soluble mineral sediment which forms from concentration and crystallization by evaporation from an aqueous solution.
The banded iron layers are formed in sea water when oxygen is released by photosynthetic cyano-bacteria. The oxygen then combines with dissolved iron in ocean to form insoluble iron oxides, which precipitated out, forming a thin layer of banded iron formation on ocean floor.
1.2 Composition
1.2.1 Mineral Content
Calcite, Cancrinite, Gypsum, Kyanite, Magnetite
Hematite, Magnetite, Quartz
1.2.2 Compound Content
CaMg(CO3)2, CaO, Calcium Sulfate, KCl, MgO, NaCl
Fe, Iron(III) Oxide, Silicon Dioxide
1.3 Transformation
1.3.1 Metamorphism
1.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Not Applicable
1.3.3 Weathering
1.3.4 Types of Weathering
Not Applicable
Chemical Weathering
1.3.5 Erosion
1.3.6 Types of Erosion
Not Applicable
Coastal Erosion, Wind Erosion