Reserve & Resource Classification & Estimation

Reserve & Resource Classification & Estimation

  training pertambangan

DESCIPTION

Multivariate geo-statistics involves more than one variable. It can improve the estimation of a variable from other variables sampled either at same points (isotopic case) or not always at the same points (heterotypic case). In many cases when drilling a layering deposit, not all drill holes obtained both top and bottom of the deposit. In this case, estimates on top or bottom elevation can be solved by multivariate or vicariate geo-statistics. Simple co-kriging or ordinary co-kriging is very often used to estimate top or bottom elevation of a layering deposit, when they are unknown in a drill hole. Simple cokriging is used if the variables are stationary and their mean are known well, otherwise we should use ordinary cokriging. Top elevation can be estimated using variable of bottom elevation or on the contrary. In case the cross-variogram of top and bottom elevation is identical or proportional with their simple variogram in isotopic case, the cross variogram is a model of intrinsic correlation, so their cokriging coincides with their own kriging. In other word, top and bottom elevation are self-krigeable. In general, the using of cokriging can improve the consistency between estimation of different variables.

 

OUTLINE

  1. Statistical analysis of sampling and data QA/QC
  • Principles of sampling, sampling error and its components
  • Statistics of sample (measure, shape, character of population, etc.)
  • Distribution models (normal, lognormal)
  • The variance of the mean and detecting sampling bias
  • Data QA/QC, verification and analysis
  1. Geological models and domains
  • Volume variance concept
  • Statistical testing of domains
  • Influence of domains on resource estimates
  1. Geo-statistics
  • Measure of heterogeneity or spatial continuity
  • Stochastic random fields, correlation function and semivariogram
  • Variography (variograms and geology)
  • Transformation of data prior to variogram calculation
  • Tricks and tips facing multiple variograms (Gaussian, spherical, exponential, zonal anisotropy, geometric anisotropy, etc.)
  1. Kriging (linear and non-linear)
  • Kriging process
  • Kriging sensitivity
  1. Geo-statistics applications and other methods
  • Inverse distance, nearest neighbor, polygon
  • Resource modeling and estimation
  • Understand place of geo-statistics in mining
  • Understand issues that affect accurate estimation
  1. Resource reserve classification

Case studies and practical exercises

 

WHO SHOULD ATTEND

  • Miners (Engineer, Business Development Manager)
  • Geo-scientist (Geologist, Geophysicist, Exploration)
  • New Venture & Field Business Development
  • Hydrologist
  • Everybody or professional who want better understanding and to broaden the knowledge from the course subject

Instructor

Dr. Sri Mulyaningsih

Durasi

3 hari

 

Jadwal Pelatihan di Jogja Media Training Tahun 2018 :

  • 13-15 Februari 2018
  • 27-29 Maret 2018
  • 10-12 April 2018
  • 7-9 Mei 2018
  • 17-19 Juli 2018
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  • 18-20 September 2018
  • 16-18 Oktober 2018
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  • 26-28 Desember 2018

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