A Note on Vanadium Mineralisation in Daba Gamlin Area, West Siang District, Arunachal Pradesh
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e discontinuous bands of dolomitic limestone, striking NE-SW have variable outcrop width of 8-50m and limited strike lengths of 100300m. The width is more in the central part as compared to the ends. Joint filled carbonaceous partings (up to 10cm) are evident within the dolomitic limestone. Three carbonate caves were observed, to the southwest of Daba Gamlin. During the investigation vanadium mineralization was reported in carbonaceous phyllite and dolomitic limestone of Daba Gamlin area. Vanadium values in the samples range from 323-1971 ppm. Vanadium is a trace element that is widely distributed in nature. The average abundance of vanadium is 135ppm (Clarke’s value). Vanadium is also closely associated with organic-rich sediments. Vanadium is extracted from several different types of mineral deposits and from fossil fuels. These deposits include vanadiferous titanomagnetite (VTM) deposits, sandstone-hosted vanadium (with or without uranium) deposits (SSV deposits), and vanadium-rich black shales (USGS, 2017). Vanadium-rich black shales occur in marine successions that were deposited in epeiric (inland) seas and on continental margins. Vanadium (V) is a critical metal that is used principally in the production of metal alloys, such as high-strength steel and alloys for use in the aerospace industry. Secondary uses are as a catalyst in the chemical industry, and in ceramics, glasses, and pigments. Vanadium is becoming more widely used in green technology applications, especially in battery technology. In India, Vanadiferous titanomagnetite (VTM) deposits occur in Mayurbhanj-Singhbhum area. According to the United States Geological Survey (USGS), China, South Africa and Russia are the world’s main producers of vanadium. Petroleum residue is another source of vanadium. Japan and the United States are understood to be the only countries to recover significant quantities of vanadium from this source. China dominates the world vanadium resources with 42% followed by Russia at 23%, and Australia at 18%. The occurrence of Vanadium in carbonaceous phyllite / graphite schist from Daba Gamlin area, has opened a new vista for assessment of vanadium resources in Arunachal Pradesh.
DOI: 10.1007/s12594-020-1553-6
JOUR.GEOL.SOC.INDIA, VOL.96, SEPT. 2020
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