The Effects of Metamorphism on the Lead-Zinc Deposits of Rajasthan

Metamorphism of any mineral deposit easily changes the grades of the ores at that deposit. Metamorphism of an ore deposit can even produce a newer deposit of a proportional grade. Here we try to use the examples of the lead and zinc deposits of Rajasthan, to explain enrichment of elements other than lead and zinc, caused because of metamorphism. Most of the major mineral deposits in the Earth’s crust have undergone some degree for metamorphism. It is essential that we study the effect of that metamorphism on the given orebody so that it may be mined sustainably. This understanding of zones in an orebody of distinct grades can lead to their easier extraction and will lead to sustainable mining practices which are safer as well as economic.