Soltani,S. and Hezarkhani,A.(2011): Determination of realistic and statistical value of the information gathered from exploratory drilling. Natural Resources Research, 20(4), 207-216.

『探鉱掘削から収集した情報の現実的かつ統計的価値の決定』


(Abstract)
 Unlike other branches of geosciences, exploratory drilling has not been investigated within the framework of an information system; so, the expression “value of exploratory drilling information” (despite its common usage) is vague. This article presents a model for the evaluation of value of the information gathered from exploratory drilling after studying different mineral exploration and exploratory drilling systems within the framework of an “information system.” Although this model does not present the economic value of information, it is a suitable tool for comparing different drilling patterns. The model was verified on the basis of drilling data for the Gol-Gohar XIIA anomaly.

Key words: mineral exploration information system; exploratory drilling; entropy; realistic value of information; statistical value of information.』

Introduction
“Mineral exploration” as an “Information system”
Information system of exploratory drilling
 Data gathered from exploratory drillholes
 Different processing of exploratory drilling data
  Data tabulation
  Data desurveying
  Compositing
  Studying the “Outliers”
  Basic statistical studies
  Mineral deposit estimation
  Classification of deposits
Information value
 Literature review
  Normative value of information
  Realistic value of information
  Subjective value of information
  Statistical value of information (Quantitative approach)
  Economic value of information
 Evaluating the information obtained from exploratory drilling
 Determining the statistical value of information obtained from drilling
  Value of information before any drilling activity
  Value of information after exploratory drillings
 Determination of the realistic value of information obtained from exploratory drillings
Choosing exploratory drilling pattern using the information value parameter
 Selecting the additional drilling pattern based on the statistical value of information
 Selecting the additional drilling pattern based on the realistic value of information
Conclusions
References



戻る