Mineralogical Research of the Bayan-Obo Rare Earth-Niobium-Iron Ore Deposit

摘要

Bayan-Obo ore diposit is known as a superlarge rare earth-niobium-polymetallic-iron ore deposit in theworld today.A great many of mineral species were found there,and the complicated metallogenic conditionswere defined.The ore deposit occurs in the Proterozoic silicious,argullaceous and carbonatic strata having beensubject to the Paleozoic magmatic activity and associated intense metasomatism with the sodium andfluorine-bearing hydrothermal solutions.A great many of specific,rare minerals and mineral assemblages hasbeen formed.Study of the minerals and mineral assemblages has a great siginificance either in mineralogicaltheories or in practice.