Stones are industrially important materials in present age. It is pure dielectric material. To decide use of stones of a rock for a particular use, its dielectric parameters like dielectric constant, dielectric loss, loss tangent etc. are very useful complex permittivity (*=’-j’’) in microwave remote sensing of hilly areas. In rocks and sediments, real and imaginary parts of complex permittivity are primary functions of mineralogy, density, porosity, water absorption capacity and rock lithology and component geometries. Literature reviews envisage that various attempts were made to explore the microwave properties of stones but no attempts were made to study various grade deposited exportable stones from rocks of kanti, kund-padla, shivgarh, peatopura of Rewari (Haryana) and its adjacent Alwar (Rajasthan) region. The present study is an attempt to explore the dielectric behaviour of various grade lime stones of Rewari and Alwar region in dry solid state at x-band microwave frequencies. The stone of Rewari is generally used as slate stone and mostly exported to Europe and that of Alwar region is generally being used in buildings and cement material in various forms. The stone samples have been collected from various mines of the different regions like Kanti, Kund-Padla, Shivgarh, Peatopura of Rewari (Haryana) and Alwar (Rajasthan). Dielectric parameters of stone samples at x-band microwave frequency are determined at a single microwave frequency and constant temperature. The two point method have been used for the determination of dielectric constant (’) and dielectric loss (’’) values of microwave frequency. The other parameters have been determined accordingly.

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References

1. Attema, E.P.W. and Ulaby, F.T. 1978. Vegetation modeled as a water cloud. Radio Science, 13, pp.357–364.
2. Bindlish, R. and Barros, A.P. 2001. Parameterization of vegetation backscatter in radarbased soil moisture estimation, Rem. Sensing of Env, Vol. 76, pp. 130–137 Engman, E.T. and Wang J.R. 1987. Evaluating roughness model for radar back scatter, IEEE Trans. Geosci. And Remote sensin, Vol GE–25, No 6.
3. Hui, L., Toshio, K., Hiroyuki, T., Tobias G. and David.,A. 2008, Monitoring Winter Wheat Growth With Ground Based Microwave Radiometers (GBMR) 2008. IEEE International Geoscience & Remote Sensing Symposium July 6–11, 2008 Boston, Massachusetts, U.S.A.
4. Jangid, R.A., Neeru, Bhatnagar, D. and Gandhi, J.M. 1996. Microwave probing to study particulate behaviour of basic powdered materials. Indian J. of Pure and Appl .Phys ,34, pp. 316–18.
5. Kong, J.A. 1990. Electromagnetic Wave Theory. Wiley. 2nd Ed. New York.
6. Paloscia S., Macelloni G., Pampaloni P. and Sigismondi S.,1999. The potential of C- and L-Band SAR in estimating vegetation biomass: The ERS-1 and JERS-1 experiments C-and X-band, IEEE Trans. Geosci. Remote Sens. 37. pp. 2107–2110.
7. Ulaby, F.T., Moore, R.K. and Fung, A.K. 1986. Microwave remote sensing: active and passive, Vol. III, from theory to application. Artech House, Dedham, MA. website:http://hydrolab.arsusda.gov/washita94/wash94.html, Hydrology and Rem. Sensing Lab., USDA, 2002, Accessed in Jan 2004.
8. Yadav ,J.S. and Gandhi, J.M. 1992. Simple microwave technique for measuring the dielectric parameters of solids and their powders. Indian J. of Pure and Appl. Phys, 30, pp. 427–432.

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