Characterisation of Morpho-Petrological Aspects of Lignite Horizons from East Coast Area, Cauvery Basin, Tamil Nadu

Bio-petrographic data on lignite occurrence of India were primarily oriented towards understanding the microconstituents In the present study morpho petrological nature, genesis and rank of lignite horizons from East Coast have been elaborated with a view to interpret depositional milieu and trend of development of lignite in this part of the basin along with a note on its industrial utilization The morphological features of the constituent macerals suggest that the precursors were deposited in coastal plain under the influence of low energy and anaerobic environment Further, lignitisation is believed to be autochthonous in origin In terms of rank, the lignite horizons are categorised as mattbrown or sub-bituminous stage Isorank study indicates improvement of quality from southeast to northwest The lignite deposit is suitable for power sector.