Open AccessBook
Applied Geostatistics with SGeMS: A User's Guide
Nicolas Remy,Alexandre Boucher,Jianbing Wu +2 more
- 23 Mar 2009
TL;DR: In this article, the authors present a general overview of Geostatistics: a recall of concepts, data sets, SGeMS EDA tools, common parameter input interfaces, estimation algorithms and stochastic simulation algorithms.
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Abstract: 1. Introduction 2. General overview 3. Geostatistics: a recall of concepts 4. Data sets & SGeMS EDA tools 5. Variogram computation and modeling 6. Common parameter input interfaces 7. Estimation algorithms 8. Stochastic simulation algorithms 9. Utilities 10. Scripting, commands and plug-ins List of programs List of symbols Bibliography.
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Citations
Colloid transport through a variable-aperture fracture under unfavorable attachment conditions: Characterization with a continuous time random walk model
TL;DR: In this paper , the authors simulated 6200 cases of colloid transport in variable-aperture fractures with different magnitudes of fracture aperture variability and correlation lengths, and obtained breakthrough curves (BTCs) reflected non-Fickian transport behavior with power-law tailing where the power law exponent increased with aperture variability rather than correlation length.
4
Copper resource estimation in PT X Batu Hijau, Regency of West Sumbawa, West Nusa Tenggara Province using geostatistical method
Irfan Marwanza,Chairul Nas,S P Badaruddin,Masagus Ahmad Azizi +3 more
- 01 Dec 2018
Abstract: The presence of copper deposits below the earth surface is generally disordered and its spread is uncontinuous, has varying grades, so it has a high degree of uncertainty in the estimation. One method of estimation uses geostatistics (kriging) where this method is suitable for mineral deposits that are full of uncertainties. The method is strongly influenced by geological data, models and information points (drill hole data). Kriging will estimate the uninformed area by connecting the information points around it. The research was conducted at PT “X”, located in Batu Hijau, West Sumbawa regency, West Nusa Tenggara Province, with the lithology of the forming of tonalite intermediates. The data used is a composite data from a combined fifteen-meter hole assay with the number of 1123 sample points. Spatial variations of copper content are known from the results of data processing. Estimated results with the kriging method found that the level of each block varies from 0.2 percent to 1.5 percent with total copper amounts of 3.4 million tons and the value of kriging variance per block varies from 0.05 to 0.16. Relative kriging standard deviation (RKSD) is used for copper resources classification in measured, indicated and inferred categories. The result of RKSD is copper measured resources of ± 700 tons, copper indicated resources ± 400 thousand tons, and copper inferred resources ± 3 million tons.
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Development of HUMGEOSTAT: A New Geological Tool for Geostatistical Analysis of Mineral Deposit: A Case Study at Sin Quyen Mine (Northern Vietnam)
TL;DR: In this article, the authors present the results of the design and implementation of a new geological tool, named as HUMGEOSTAT, for advanced geostatistical analysis of mineral deposit, a case study at the Sin Quyen, one of the important mines for the Vietnam mining industry in Vietnam.
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Albert Tarantola
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Conditional Simulation of Complex Geological Structures Using Multiple-Point Statistics
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The intrinsic random functions and their applications
TL;DR: The intrinsic random functions (IRF) are a particular case of the Guelfand generalized processes with stationary increments and constitute a much wider class than the stationary RF, and are used in practical applications for representing nonstationary phenomena as discussed by the authors.