Refine your search
Collections
Co-Authors
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Bhattacharyya, Tapas
- Soil Information System: Web-Based Solution for Agricultural Land-use Planning
Abstract Views :224 |
PDF Views:101
Authors
Tapas Bhattacharyya
1,
S. P. Wani
1,
P. Chandran
2,
P. Tiwary
2,
D. K. Pal
2,
K. L. Sahrawat
1,
M. Velayutham
2
Affiliations
1 International Crops Research Institute for Semi-Arid Tropics, Hyderabad 502 324, IN
2 National Bureau of Soil Survey and Land Use Planning, Nagpur 440 010, IN
1 International Crops Research Institute for Semi-Arid Tropics, Hyderabad 502 324, IN
2 National Bureau of Soil Survey and Land Use Planning, Nagpur 440 010, IN
Source
Current Science, Vol 110, No 2 (2016), Pagination: 241-245Abstract
The soil-forming factors, especially climate, vegetation and topography, act on a range of rock formations and parent materials leading to the development of different kinds of soils. Through concerted efforts, soil datasets generated earlier are used to develop maps and soil information systems at different scales. Progress in basic and fundamental research on the formation of Indian soils as related to climate, relief, organisms, parent materials and time has helped in developing the soil information system.Keywords
Agriculture, Information Technology, Landuse Planning, Soils.Full Text
References
- Department of Archaeology, Government of Tamil Nadu; http://www.tnarch.gov.in/epi.htm
- Mara, H., Hering, J. and Kromker, S., GPU based optical character transcription for ancient inscription recognition. In Proceedings of the 15th International Conference on Virtual Systems and Multimedia, Vienna, Austria, 2009, pp. 154-159; doi:10.1109/VSMM.2009.29
- Digital photography tutorials; http://www.cambridgeincolour.com/ tutorials.htm
- Rajakumar, S. and Subbiah Bharathi, V., 7th Century ancient Tamil character recognition from temple wall inscriptions. Indian J. Comput. Sci. Eng., 2012, 3(5), 673-677.
- Savarese, S., Rushmeier, H., Bernardini, F. and Perona, P., Shadow carving. In Proceedings of the International Conference on Computer Vision, Vancouver, Canada, June 2001, 2001, pp.190-197.
- Woodham, R. J., Photometric method for determining surface orientation from multiple images. Opt. Eng., 1980, 9(1), 139-144.
- Woodham, R. J., Photometric stereo: a reflectance map technique for determining Surface orientation from image intensity. Proc.SPIE, 1978, 155, 136-143.
- Einarsson, P., Hawkins, T. and Debevec, P., Photometric Stereo for Archaeological Inscriptions, SIGGRAPH 2004 Sketch, University Southern California Institute for Creative Technologies; http://gl.ict.usc.edu/Research/Inscriptions/photometricstereo_sketch.pdf
- Nayar, S. K., Ikeuchi, K. and Kanade, T., Shape from interreflections.In Proceedings of the International Conference on Computer Vision, Osaka, Japan, 1990, pp. 2-11.
- Nayar, S. K., Ikeuchi, K. and Kanade, T., Surface reflection: physical, geometrical perspectives. IEEE Trans. Pattern Anal. Machine Intell., 1991, 13(7), 611-634.
- Zhang, R., Tsai, P.-S., Cryer, J. E. and Shah, M., Shape from shading: a survey. IEEE Trans. Pattern Anal. Machine Intell., 1999, 21(8), 690-706.
- Lam, L., Lee, S. and Suen, C., Thinning methodologies - a comprehensive survey. IEEE Trans. Pattern Anal. Machine Intell., 1995, 17(9), 914-919.
- Zhang, T. Y. and Suen, C. Y., A fast parallel algorithm for thinning digital patterns. Commun. ACM, 1984, 27, 236-239.
- Ionescu, M. M. and Ralescu, A. L., The impact of image partition granularity using fuzzy hamming distance as image similarity measure. In Proceedings of the 15th Midwest Artificial Intelligence and Cognitive Sciences Conferences, Chicago IL, 16-18 April 2004, pp. 111-118.
- Gonzalez, R. C. and Woods, R. E., Digital Image Processing, Prentice Hall, New Jersey, 2002.
- http://www.homepages.inf.ed.ac.uk/rbf/HIPR2/unsharp.htm
- Otsu, N., A threshold selection method from gray level histograms.IEEE Trans. Syst. Man Cybernetics, 1979, 9(1), 62-66.
- Kanwar Lal Sahrawat (1941–2016)
Abstract Views :211 |
PDF Views:76
Authors
Affiliations
1 Dr Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri 415 712, IN
1 Dr Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri 415 712, IN
Source
Current Science, Vol 110, No 7 (2016), Pagination: 1368-1368Abstract
The agricultural scientist Kanwar Lal Sahrawat (KLS) expired on 3 February 2016. Born on 7 November 1941, KLS had his early education in Rajasthan. He obtained his basic degree in science from Punjab University, Chandigarh in 1962 and moved to the Indian Agricultural Research Institute, New Delhi for his M Sc and Ph D degrees. After graduation he started working as an analyst (1962-67) at the Hindustan Insecticides Ltd, New Delhi and also as an assistant (1967) at the Indian Standards Institution, New Delhi.Full Text
- Preface:Soil and Water Management
Abstract Views :307 |
PDF Views:82
Authors
Affiliations
1 Dr Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli 415 712, IN
2 ICRISAT Development Centre, International Crops Research Institute for the Semi-Arid Tropics, Hyderabad 502 324, IN
1 Dr Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli 415 712, IN
2 ICRISAT Development Centre, International Crops Research Institute for the Semi-Arid Tropics, Hyderabad 502 324, IN
Source
Current Science, Vol 110, No 9 (2016), Pagination: 1651-1651Abstract
Soil and water form the basis of all terrestrial life. Their resources vary widely and are affected by natural and anthropogenic perturbations. Ancient civilizations and cultures emerged and sustained on good soils; and some of them went into oblivion when soil and water resources were degraded irreversibly. Even during the contemporary period, good-quality soil and water resources form a powerful engine of economic development and ensured food security.Full Text
- Structural Evolution of a Gneiss Dome in the Axial Zone of the Proterozoic South Delhi Fold Belt in Central Rajasthan
Abstract Views :223 |
PDF Views:1
Authors
Affiliations
1 Department of Geology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata-700 019, IN
2 Department of Geological Sciences, Jadavpur University, Kolkata-700 032, IN
1 Department of Geology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata-700 019, IN
2 Department of Geological Sciences, Jadavpur University, Kolkata-700 032, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 75, No Spl Iss 1 (2010), Pagination: 18-31Abstract
The structural geometry of the Anasagar gneiss dome in the axial zone of the South Delhi Fold Belt is controlled by polyphase folding. It is classified as a thrust-related gneiss dome and not as a metamorphic core complex. Four phases of deformation have affected both the gneiss and the enveloping supracrustal rocks. D2 and D3 deformations probably represent early and late stages of a progressive deformation episode in a simple shear regime combined with compression. The contact between the gneiss and the supracrustal rocks is a dislocation plane (thrust) with top-to-east sense of movement which is consistent with the vergence of the D2 folds. The thrust had a ramp-and-flat geometry at depth. At the present level of exposure it is a footwall flat (that is, parallel to the gneissosity in the footwall), but it truncates the bedding of the hanging wall at some places and is parallel at others. The thrusting was probably broadly coeval with the D2 folds and the thrust plane is locally folded by D2. D2 and D3 folds have similar style and orientation as the first and second phases respectively of major folds in the Delhi Supergroup of the South Delhi Fold Belt and these are mutually correlatable. It is suggested that D1 may be Pre-Delhi in age. Available geochronological data indicate that the emplacement of the Anasagar gneiss predated the formation of volcanic rocks in the Delhi Supergroup and also predated the main crust forming event in the fold belt. The Anasagar gneiss and its enveloping supracrustal rocks are probably older than the Delhi Supergroup.Keywords
Anasagar Gneiss Dome, Polyphase Folding, Thrust-Related Gneiss Dome, South Delhi Fold Belt, Rajasthan.
References
- ARMSTRONG, R.L. (1982) Cordilleran metamorphic core complexes-from Arizona to southern Canada. Ann. Rev. Earth Planet. Sci., v.10, pp.129-154
- CHATTOPADHYAY, N., MUKHOPADHYAY, D. and BHATTACHARYYA, T. (2006) Primary and secondary features in the Anasagar gneiss near Ajmer and their implication on the evolution of the Proterozoic South Delhi Fold Belt, Central Rajasthan. Indian Minerals, v.60, pp.105-118.
- CHOUDHARY,A. K., GOPALAN, K. and SHASTRY, C. A. (1984) Present status of the geochronology of the Precambrian rocks of Rajasthan. Tectonophysics, v.105, pp.131-140.
- CONEY, P.J. (1980) Cordilleran metamorphic core complexes: An overview. Geol Soc. Amer. Mem., v.153, pp.7-31.
- DEB, M., THORPE, R.I., KRSTIC, D., CORFU, F. and DAVIS, D.W. (2001) Zircon U-Pb and galena Pb isotope evidence for an approximate 1.0 Ga terrane constituting the western margin of the Aravalli-Delhi orogenic belt, northwestern India. Precambrian Res., v.108, pp.195-213.
- DUNLAP, W. J., HIRTH, G. and TEYSSIER, C. (1997) Thermomechanical evolution of a ductile duplex. Tectonics, v.16, pp.983-1000.
- ESKOLA. P.E. (1949) The problem of mantled gneiss domes. Geol. Soc. London, Quart. Jour., v.104, pp.461-476.
- FAREEDUDDIN, REDDY, M. S. and BOSE, U. (1995) Reappraisal of the Delhi stratigraphy in the Ajmer - Sambhar sector, north central Rajasthan. Jour. Geol. Soc. India, v.45, pp.667-679.
- FOWLER, A.R., KHAMEES, H. and DOWIDAR, H. (2007) El Sibai gneissic complex, Central Eastern Desert, Egypt: Folded nappes and syn-kinematic gneissic granitoid sheets - not a core complex. Jour. African Earth Sci., v.49, pp.119-135
- FOWLER, T.J. and OSMAN, A.F. (2001) Gneiss-cored interference dome associated with two phases of late Pan-African thrusting in the central Eastern Desert, Egypt. Precambrian Res., v.108, pp.7-43.
- FRITZ, H., WALLBRECHER, E., KHUDEIR, A.A., ABU EL ELA, F. and Dallmeyer, D.R. (1996) Formation of Neoproterozoic metamorphic core complexes during oblique convergence (Eastern Desert, Egypt). Jour.African Earth Sci., v.23, pp.311-329.
- GUPTA, P., FAREEDUDDIN, REDDY, M.S. and MUKHOPADHYAY, K. (1995) Stratigraphy and structure of Delhi Supergroup of rocks in central part of Aravalli range. Rec. Geol. Surv. India, v.120, pp.12-26.
- HARRIS, L.B., KOYI, H.A. and FOSSEN, H. (2002) Mchanisms for folding of high grade rocks in extensional tectonic settings. Earth Sci. Rev., v.59, pp.163-210.
- HERON, A.M. (1953) The geology of Central Rajputana. Mem. Geol. Surv. India, v.79, 389p.
- KISTERS, A. F. M., STEVENS, G., DZIGGEL, A. and Richard A. ARMSTRONG (2003) Extensional detachment faulting and corecomplex formation in the southern Barberton granite-greenstone terrain, South Africa: evidence for a 3.2 Ga orogenic collapse. Precambrian Res., v.127, pp.355-378.
- LISTER, G. S. and DAVIS, G.A. (1989) The origin of metamorphic core complexes and detachment faults formed during Tertiary continental extension in the northern Colorado River region, U.S.A. Jour. Struct. Geol., v.11, pp.65-94.
- LOPEZ, R., MUKHOPADHYAY, D., BHATTACHARYA, T. and TOBISCH, O. T. (1996) Proterozoic rim and core zircon ages from the Anasagar gneiss, central Rajasthan, India. Geol. Soc. Amer., Abstract and Programs, v.28(7), pp.A 492.
- MAKOVSKY, Y, KLEMPERER, S. I., RATSBACHER, L. and ALSDORF, D. (1999) Midcrustal reflector on INDEPTH wide-angle profiles: An ophiolitic slabbeneath the India-Asia suture in southern Tibet? Tectonics, v.18, pp.793-808.
- MARTINEZ-MARTINEZ, J. M., SOTO, J. I. and BALANYA, J. C. (2002) Orthogonal folding of extensional detachments: structure and origin of the Sierra Nevada elongated dome (Betics, SE Spain). Tectonics, v.21, pp. 3-1-3-22.
- MUKHOPADHYAY, D. (1989) Structural history of the central section of the Delhi orogenic belt. Proc. 28th. Int. Geol. Cong., Abstract, v.2, pp.2479-2480.
- MUKHOPADHYAY, D. and BHATTACHARYYA, T. (2000) Tectonostratigraphic framework of the South Delhi Fold Belt in the Ajmer-Beawar region, central Rajasthan, India: a critical review. In: M. Deb (Ed.), Crustal evolution and metallogeny in the northwestern Indian shield. Narosa Publishing, New Delhi, pp.126-137.
- MUKHOPADHYAY, D., BARAL, M.C. and NIYOGI, R.K. (1997) Structures in the banded iron-formation of the south-eastern Bababudan Hills, Karnataka. India. Proc. Indian Acad. Sci. (Earth Planet. Sci.), v.106, pp.259-276.
- MUKHOPADHYAY, D., BHATTACHARYA, T., CHATTOPADHYAY, N., LOPEZ, R. and Tobisch, O.T. (2000) Anasagar gneiss: A folded granitoid pluton in the Proterozoic South Delhi Fold Belt, central Rajasthan. Proc. Indian Acad. Sci. (Earth Planet. Sci.), v.109, pp.21-37.
- RAMBERG, H. (1981) Gravity, deformation and the Earth's crust: In theory, experiments and geological application. Academic Press, New York, 452p.
- ROY, A.B. and JAKHAR, S.R. (2002) Geology of Rajasthan (Northwest India) Precambrian to recent. Scientific Publishers (India), Jodhpur. 421p.
- SINHA ROY, S., MALHOTRA, G. and MOHANTY, M. (1998) Geology of Rajasthan. Geol. Soc. India, 278p.
- TEYSSIER, C. and WHITNEY, D.I. (2002) Gneiss domes and orogeny. Geology, v.30, pp.1139-1142.
- TOBISCH, O. T., COLLERSON, K. D., BHATTACHARYA, T. and MUKHOPADHYAY, D. (1994) Structural relationship and Sm-Nd isotope systematics of polymetamorphic granitic gneisses and granitic rocks from central Rajasthan, India: implications for the evolution of the Aravalli craton. Precambrian Res., v.65, pp.319-339.
- VOLPE, A.M. and MACDOUGALL, J.D. (1990) Geochemistry and isotopic characteristic of mafic (Phulad ophiolite) and related rocks in the Delhi Supergroup, Rajasthan, India: Implicationsfor rifting in the proterozoic. Precambrian Res., v.48, pp.167-191.
- WERNICKE, B. and AXEN, G.J. (1988) On the role of isostasy in the evolution of normal fault systems. Geology, v.16, pp.848-851.
- WHITNEY, D.L., TEYSSIER, C. and VANDERHAEGE, O. (2004) Gneiss domes and crustal flow. Geol Soc. Amer., Spec. Paper, v.380, pp.15-33.
- WOODCOCK, N.H. (1977) Specification of fabric shapes using an eigenvalues method. Geol. Soc. Amer. Bull., v.88, pp.1231-1236.
- YIN,A. (1991) Mechanisms for the formation of domal and basinal detachment faults: a three-dimensional analysis. Jour. Geophys. Res., v.96, pp.14,577-14,594.
- YIN, A. (2002) Passive-roof thrust model for the emplacement of the Pelona-Orocopia Schist in southern California, United States. Geology, v.30, pp.183-186.
- YIN,A. (2004) Gneiss domes and gneiss dome systems. Geol. Soc. Amer., Spec. Paper, v.380, pp.1-14.