Informatics Publishing Limited

N. Chowdhury ¹, A. Basak ¹, S. Sanyal ²

Affiliations
1 Department of Obstetrics & Gynaecology, Institute of Post-Graduate Medical Education & Research, Calcutta-700 020, IN
2 Department of Bacteriology, Institute of Post-Graduate Medical Education & Research, Calcutta-700 020, IN

Abstract

No Abstract

Keywords

No Keyword

Full Text

     

P. R. Golani ¹, D. Bhattacharyya ², S. Sanyal ², I. R. Kirmani ², G. Malhotra ², S. Bhattacharyya ², A. K. Grover ², J. L. Narang ²

Affiliations
1 Geological Survey of India, A.M.S.E. Wing, Central Zone, Seminary Hills, Nagpur - 440 006, IN
2 Geological Survey of India, Western Region, 15-16, Jhalana Dungri, Jaipur - 302 004, IN

Abstract

The Deldar-Kui-Chitrasani (DKC) fault is a brittle structure manifested by anastomosing system of fractures in the southwestern part of the South Delhi Fold Belt (SDFB). Based on the identification of cross-fibre and 'jigsaw puzzle' type structures, presence of vugs lined with cryptocrystalline quartz, replacement of calcite by chalcedonic quartz and evidences of argillic alteration, the breccia along the fault is recognised by present workers as epithermal breccia. Lithogeochemical sampling of the breccia reveals that, besides moderate base metal signatures, gold values are consistently present in significant concentrations comparable to regional anomalies associated with epithermal gold deposits in the United States. In view of the high proportion of magmatic rocks in the southwestern part of the SDFB, the DKC fault zone is considered a favourable target for searching epithermal type of gold mineralisation.

Keywords

Economic Geology, Epithermal Breccia, Lithogeochemistry, Gold Anomaly, Faults, Shear Zone, South Delhi Fold Belt, Rajasthan, Gujarat.

Full Text

     

M. Dube ¹, S. Sanyal ²

Affiliations
1 Department of Mathematics, Rani Durgavati University, Jabalpur, IN
2 Department of Mathematics, Govt. M. H. College, Jabalpur, IN

Abstract

In this paper we give the construction of a G²􀀀 trigonometric rational cubic spline interpolant. Using this we construct a rational B- spline or basis for the G²􀀀 trigonometric rational cubic spline interpolant, and show that it forms a partition of unity. We also give the B-spline curve for the same. By adjusting the weights in the rational trigonometric B- spline curve we can bring the rational segment pretty close to the control polygon.

Keywords

Cubic Rational Trigonometric Splines, B-Spline, Shape Preserving G²-Continuity.

Full Text