Abstract
An examination on the structural features of some coal samples from Makum coalfield, Assam (India) were carried out by using scanning electron microscopy. The morphological characteristics of the macerals were recognized. Collinite was recognizable by its angular shape with characteristic fracture patterns and striated or laminated surfaces. Sporinite particles showed no well-defined shape. Fusinite was remarkable in having a chunky needle form. Chemical and petrographic characteristics of these coals also have been reported. These findings have shown prime importance in fingerprinting the physical structure of these coals.
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References
Cope, M.J. (1979) In: A.G. Douglas and J.R. Maxwell Advances in Organic Geochemistry (Eds.), 663p.
Davis, M.R., White, A. and Deegn, M.D. (1986) Scanning electron microscopy of coal macerals. Fuel, v.65, pp.277–280.
Garin-valles, M., Pradell, T., Martinez, S. and Vendrell, M. (1993) Mineralogical characterization of the Garumnian subbituminous lignite from the central Pyrenees by SEM-EDX, X-ray diffraction and Mössbauer spectroscopy. Fuel, v.72, pp.971–975.
Gluskoter, H.J., Shimp, N.F. and Ruch, R.R. (1981) In: M.A. Elliott (Ed.), Chemistry of coal Utilization. 2nd supplementary volume, Wiley, New York, 413p.
Himus, G.W. (Ed.) (1954) Fuel testing: laboratory methods in fuel technology. Leonard Hill, London, pp.67–78
International Committee for Coal and Organic Petrology (1971, 1973 and 1994)
IS 1350 (1984) Part I: Methods of Test for Coal and Coke — Part I: Proximate Analysis
IS 9127 (1979) Part 2: Methods for petrographic analysis of coal: Part 2 Preparation of coal samples for petrographic analysis
Meyers, R.A. (Ed) (1982) Coal Structure, Acedemic Press, NewYork, 47p.
Saikia, B.K., Boruah, R.K. and Baruah, G.D. (2007) Laser-Induced Fluorescence Spectra of Some High-Sulphur Assam Coals, India. Energy & Fuel, v.21, pp.37–44
Scott, A.C. and Collinson, M.E. (1978) In: W.B. Whalley (Ed.), Scanning Electron Microscopy in the study of sediments, 137p.
Shirazi, A.R., Eklund, L. and Lindqvist, O. (1994) Direct quantitative analysis of mineral matter and different forms of pyritic sulfur in coal by electron probe microanalysis (EPMA) and automated image analysis (AIA). Fuel, v.73, pp.193–198.
Singh, M.P. (1989) On the origin of fusain of the tertiary coals of Meghalaya. Jour. Geol. Soc. India, v.33(4), pp.99–103
Singh, M.P. and Singh, G.P. (1990) Occurrence and distribution of mineral matter in Jammu coals: Emanations of scanning electron micrography, Jour. Geol. Soc. India, v.62(4), pp.249–256
Singh, M.P. and Singh, P.K. (1995) Mineral matter in Rajmahal coal: Study through incident light microscopy and scanning electron micrography, Jour. Geol. Soc. India, v.46, pp.557–564
Singh, M.P., Singh, R.M. and Chandra, D. (1987) Scanning electron microscopic studies of mineral matter in Ghugus coals, Wardha vally coalfields, district Chandrapur and Yeotmal, Maharastra. Jour. Geol. Soc. India, v.59(1), pp.56–64.
Stach, E., Mackowsky, M. TH., Teichmuller, M., Taylor, G. H., Chandra, D. and Teichmuller, R. (1982) Stach’s Text Book of Coal Petrology; Gebruden Borntrneger: Stuttgart, Germany, 525p.