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The Comparison Between Sequential Gaussian Simulation (SGS) of Choghart Ore Deposit and Geostatistical Estimation Through Ordinary Kriging
| Content Provider | Semantic Scholar |
|---|---|
| Author | Asghari, Omid Soltni, Fatemeh Amnieh, Hassan Bakhshandeh |
| Copyright Year | 2006 |
| Abstract | The most important properties of Geostatistical Simulations are, producing a group of images which shows a rang of possible events, calculating probable percentage of happening and also determining the risk in each step of process.137 holes have been drilled in this deposit. 3331 data from 125 drilled holes were gathered for grade estimation and reserve evaluation. Statistical studies indicated that Fe input data had single - population characteristics and obeyed a natural model. To carry out geostatistical studies, a spherical model was curve fitted over an empirical variogram. Plotting the empirical variogram in different directions showed neither geometric nor regional anisotropy for the deposit. For simulating via Sequential Gaussian Simulation (SGS) method, data were transferred to standard normal and then simulated 100 times (in this way 100 realizations were created). All of the realizations were honor to histogram and variogram of samples, so all realizations are valid. E_Type and probability maps are drawn in 12.5 meters intervals and grade-tonnage curves were drowning for each realization. E_ Type maps evaluate average 108 million tones for whole deposit. Grade-tonnage curves were showed the range of tonnage variance. That is between 97 and 116 million tones for whole deposit. To estimate the iron grade, Ordinary kriging method was used according to which, all of the exploitable blocks with dimensions 12.5*25*25 (m ) were block 3 estimated and results show the intact reserve of the exploited minerals was found to be 112 million tons of ore with an average iron grade of 56%. |
| File Format | PDF HTM / HTML |
| Volume Number | 10 |
| Alternate Webpage(s) | https://www.civilica.com/PdfExport-SGSI10_029=Comparison-between-Sequential-Gaussian-Simulation-SGS-of-Choghart-Ore-Deposit-and-Geostatistical-Estimation-through-Ordinary-Kriging.pdf |
| Alternate Webpage(s) | http://ajbasweb.com/old/ajbas/2009/330-341.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
