Investigating Abilities of Dempester-Shafer in Comparison to Weight of Evidence model in Evaluation Mineral Potential of Tarom-Iran Area

Abstract

Term of mineral potential is attributed to the properties of a specific area stating probability of mineral resources or mineralization. According to extensive areas in the country and the extent of potential mineral sources, the arrival of new attitude to identify mineral indexes seems necessary. Therefore, most related information to exploratory activities on mineral sources are reference location so GIS can be used as an optimum technology and science reference to prepare mineral potential map.

The objective of this research is investigating modelling and preparing mineral promising areas with their uncertainty or non-certainty in Tarom area in Zanjan province. Comparison of the obtained results from models in spite of present similarities showed that Dempester-Shafer theory has efficient ability to quantify uncertainty of information system and this feature provide amount of uncertainty besides having a map for mineral promising areas. Evaluations showed that both models are proper, but Dempester-Shafer model is better than Weight of evidence model in preparing map for mineral promising areas and acts more effectively.

Keywords: Dempester-shafer model, Weight of evidence model, mineralization potential, uncertainty modelling