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A Methodology for Calculating Tonnage Uncertainty in Vein-Type Deposits Open Access


Other title
tonnage volume uncertainty
boundary modeling
distance function
vein-type deposit
Type of item
Degree grantor
University of Alberta
Author or creator
Munroe, Michael J
Supervisor and department
Deutsch, Clayton V (Civil & Environmental Engineering)
Examining committee member and department
Boisvert, Jeffery (Civil & Environmental Engineering)
Zonneveld, John-Paul (Earth & Atmospheric Sciences)
Department of Civil and Environmental Engineering

Date accepted
Graduation date
Master of Science
Degree level
One of the main sources of uncertainty in vein type deposits is found in the calculation of the tonnage. The boundary limits often applied to a vein type deposit are calculated from sparse data using deterministic methods that offer no measure of uncertainty. The most common method used to calculate the tonnage of a vein-type deposit is to convert the volume of the deposit defined by a wireframe model into a tonnage. Wireframe models are deterministic, created from the interpretation of level plans and cross sections. These types of models have no provision for the calculation of tonnage uncertainty. One method of calculating the tonnage uncertainty in vein deposits is through the use of a distance function. This thesis presents a distance function (DF) approach that allows for the introduction of uncertainty into the modeling process by defining a zone or bandwidth that is quantifiable.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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