The volcanic vent is defined as the opening that is exposed to the Earth's surface where a volcano or its material has erupted.
Iron ore deposition near volcanic vent:
- The flank of the volcano's high or rich iron ores will be found. Apatite, hematite, and magnetite deposits are also found.
- The iron ore deposits are formed due to the hot solutions, which are transported and replaced by favorable chemical compositions.
- Region B will have a lower iron ore concentration as the hot magma will be cooled down, and the composition of iron will be less.
Thus, region A will have a high iron ore concentration, whereas region B will have a low iron concentration.
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