CHOGHART ORE DEPOSIT ESTIMATION AND RISK ESTIMATION BY SEQUENTIAL GAUSSIAN SIMULATION (SGS) METHOD

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ASGHARI O.; HEZARKHANI A.

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Journal: AMIRKABIR Year:2006 | Volume:17 | Issue:64-C Page(s): 51-59

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Title

CHOGHART ORE DEPOSIT ESTIMATION AND RISK ESTIMATION BY SEQUENTIAL GAUSSIAN SIMULATION (SGS) METHOD

Author(s)

ASGHARI O. | HEZARKHANI A. | Issue Writer Certificate

Keywords

GEOSTATISTICQ3

SEQUENTIAL GAUSSIAN SIMULATION (SGS)Q3

RISK ESTIMATIONQ3

CHOGHART IRON OREQ3

KRIGINGQ3

VARIOGRAMQ3

Abstract

The most important properties of GEOSTATISTICal Simulation are producing a group of images, which shows a range of possible events, calculating probable percentage of happening and also determining the risk in each step of process. 137 holes are drilled in this deposit. 3331 data from 125 drilled holes are gathered for grade estimation and reserve evaluation. Statistical studies show that Fe grade is not skewed and obey a natural model.plotting the empirical VARIOGRAM in different directions show neither geometric nor regional anisotropy for the deposit. For simulating via SGS method, data are 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 drown for each realization. E_Type maps evaluate average 108 million tones with 56% Fe content for whole deposit. Grade-tonnage curves were showed the range of tonnage variance. That is between 97 and 116 million tones for whole deposit.

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APA: Copy

ASGHARI, O., & HEZARKHANI, A.. (2006). CHOGHART ORE DEPOSIT ESTIMATION AND RISK ESTIMATION BY SEQUENTIAL GAUSSIAN SIMULATION (SGS) METHOD. AMIRKABIR, 17(64-C), 51-59. SID. https://sid.ir/paper/729/en

Vancouver: Copy

ASGHARI O., HEZARKHANI A.. CHOGHART ORE DEPOSIT ESTIMATION AND RISK ESTIMATION BY SEQUENTIAL GAUSSIAN SIMULATION (SGS) METHOD. AMIRKABIR[Internet]. 2006;17(64-C):51-59. Available from: https://sid.ir/paper/729/en

IEEE: Copy

O. ASGHARI, and A. HEZARKHANI, “CHOGHART ORE DEPOSIT ESTIMATION AND RISK ESTIMATION BY SEQUENTIAL GAUSSIAN SIMULATION (SGS) METHOD,” AMIRKABIR, vol. 17, no. 64-C, pp. 51–59, 2006, [Online]. Available: https://sid.ir/paper/729/en

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