USING INDICATOR KRIGING AND GIS FOR MAPPING PHOSPHATE GRADES AT QURAYAT DISTRICT, EGYPT | ||
| JES. Journal of Engineering Sciences | ||
| Article 8, Volume 34, No 6, November and December 2006, Pages 1799-1812 PDF (691.84 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2006.111351 | ||
| Authors | ||
| Sameh S. Ahmed* 1; M. R. El Tahlawi2; M. Z. Rashad2; H. A. Saleem2 | ||
| 1Mining and Metallurgical Engineering Department, Faculty of Engineering, Assiut University, Assiut, 71518, EGYPT Fax: +20 088 2332553 | ||
| 2Mining and Metallurgical Engineering Department, Faculty of Engineering, Assiut University, Assiut, 71518, EGYPT Fax: +20 088 2332553 | ||
| Abstract | ||
| Understanding the spatial distribution of Phosphate ores, particularly P2 O5% can aid mining engineers in identifying the areas that have high and low values of P2O5% in order to manage the extraction scheme. Most studies that have been carried out in Egyptian phosphate ores, focused on calculations of average P2O5%, average thickness, and total tonnage and seldom concern with spatial variability and mapping of P2O5%. This paper introduces indicator kriging and its uses (for the first time in Egypt) in mapping phosphate grades, and illustrates how the kriging results can be interpreted easily when they are integrated with other geological and mining data using suitable Geographic Information System. Egyptian Mineral Resources Authority (EMRA) provided data for Qurayat area. GIS software (ARC/GIS 9.0) was used to post the locations and geological maps of samples and study area, and the integration of IK and GIS allowed using creative colours to delineate the relative magnitudes of the measurements recorded at these locations, so a better understanding of the ore distribution has been much-admired. | ||
| Keywords | ||
| Indicator kriging; Ordinary kriging; El-Mahamid; P2O5 %; GIS | ||
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