Carbonate hosted lead zinc ore deposits are important and highly valuable concentrations of .. A fore reef/back reef transition is the 'sweet spot', and thus depending on the age of the carbonate sequence, familiarity with coral palaeontology is.
History of metallurgy in the Indian subcontinent Wikipedia
The history of metallurgy in the Indian subcontinent began prior to the 3rd millennium BCE and continued well into the British Raj. Metals and related concepts were mentioned in various early Vedic age texts . In RV 4.2.17, "the gods [are] smelting like copper/metal ore the human generations". The references to Ayas in the.